Updated kernel packages that fix multiple security issues and two bugs are now available for Red Hat Enterprise Linux 4.

The Red Hat Security Response Team has rated this update as having important security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section.

The kernel packages contain the Linux kernel, the core of any Linux operating system.

This update fixes the following security issues :

* A heap overflow flaw was found in the Linux kernel's Transparent Inter-Process Communication protocol (TIPC) implementation. A local, unprivileged user could use this flaw to escalate their privileges.
(CVE-2010-3859, Important)

* Missing sanity checks were found in gdth_ioctl_alloc() in the gdth driver in the Linux kernel. A local user with access to '/dev/gdth' on a 64-bit system could use these flaws to cause a denial of service or escalate their privileges. (CVE-2010-4157, Moderate)

* A NULL pointer dereference flaw was found in the Bluetooth HCI UART driver in the Linux kernel. A local, unprivileged user could use this flaw to cause a denial of service. (CVE-2010-4242, Moderate)

* A flaw was found in the Linux kernel's garbage collector for AF_UNIX sockets. A local, unprivileged user could use this flaw to trigger a denial of service (out-of-memory condition). (CVE-2010-4249, Moderate)

* Missing initialization flaws were found in the Linux kernel. A local, unprivileged user could use these flaws to cause information leaks. (CVE-2010-3876, CVE-2010-4072, CVE-2010-4073, CVE-2010-4075, CVE-2010-4080, CVE-2010-4083, CVE-2010-4158, Low)

Red Hat would like to thank Alan Cox for reporting CVE-2010-4242;
Vegard Nossum for reporting CVE-2010-4249; Vasiliy Kulikov for reporting CVE-2010-3876; Kees Cook for reporting CVE-2010-4072; and Dan Rosenberg for reporting CVE-2010-4073, CVE-2010-4075, CVE-2010-4080, CVE-2010-4083, and CVE-2010-4158.

This update also fixes the following bugs :

* A flaw was found in the Linux kernel where, if used in conjunction with another flaw that can result in a kernel Oops, could possibly lead to privilege escalation. It does not affect Red Hat Enterprise Linux 4 as the sysctl panic_on_oops variable is turned on by default.
However, as a preventive measure if the variable is turned off by an administrator, this update addresses the issue. Red Hat would like to thank Nelson Elhage for reporting this vulnerability. (BZ#659568)

* On Intel I/O Controller Hub 9 (ICH9) hardware, jumbo frame support is achieved by using page-based sk_buff buffers without any packet split. The entire frame data is copied to the page(s) rather than some to the skb->data area and some to the page(s) when performing a typical packet-split. This caused problems with the filtering code and frames were getting dropped before they were received by listening applications. This bug could eventually lead to the IP address being released and not being able to be re-acquired from DHCP if the MTU (Maximum Transfer Unit) was changed (for an affected interface using the e1000e driver). With this update, frames are no longer dropped and an IP address is correctly re-acquired after a previous release.
(BZ#664667)

Users should upgrade to these updated packages, which contain backported patches to correct these issues. The system must be rebooted for this update to take effect.

Dan Rosenberg discovered that several network ioctls did not clear kernel memory correctly. A local user could exploit this to read kernel stack memory, leading to a loss of privacy. (CVE-2010-3296, CVE-2010-3297)

Brad Spengler discovered that stack memory for new a process was not correctly calculated. A local attacker could exploit this to crash the system, leading to a denial of service. (CVE-2010-3858)

Dan Rosenberg discovered that the Linux kernel TIPC implementation contained multiple integer signedness errors. A local attacker could exploit this to gain root privileges. (CVE-2010-3859)

Dan Rosenberg discovered that the CAN protocol on 64bit systems did not correctly calculate the size of certain buffers. A local attacker could exploit this to crash the system or possibly execute arbitrary code as the root user. (CVE-2010-3874)

Nelson Elhage discovered that the Linux kernel IPv4 implementation did not properly audit certain bytecodes in netlink messages. A local attacker could exploit this to cause the kernel to hang, leading to a denial of service. (CVE-2010-3880)

Dan Rosenberg discovered that IPC structures were not correctly initialized on 64bit systems. A local attacker could exploit this to read kernel stack memory, leading to a loss of privacy.
(CVE-2010-4073)

Dan Rosenberg discovered that multiple terminal ioctls did not correctly initialize structure memory. A local attacker could exploit this to read portions of kernel stack memory, leading to a loss of privacy. (CVE-2010-4075, CVE-2010-4076, CVE-2010-4077)

Dan Rosenberg discovered that the RME Hammerfall DSP audio interface driver did not correctly clear kernel memory. A local attacker could exploit this to read kernel stack memory, leading to a loss of privacy. (CVE-2010-4080, CVE-2010-4081)

Dan Rosenberg discovered that the VIA video driver did not correctly clear kernel memory. A local attacker could exploit this to read kernel stack memory, leading to a loss of privacy. (CVE-2010-4082)

Dan Rosenberg discovered that the semctl syscall did not correctly clear kernel memory. A local attacker could exploit this to read kernel stack memory, leading to a loss of privacy. (CVE-2010-4083)

James Bottomley discovered that the ICP vortex storage array controller driver did not validate certain sizes. A local attacker on a 64bit system could exploit this to crash the kernel, leading to a denial of service. (CVE-2010-4157)

Dan Rosenberg discovered that the Linux kernel L2TP implementation contained multiple integer signedness errors. A local attacker could exploit this to to crash the kernel, or possibly gain root privileges. (CVE-2010-4160)

Dan Rosenberg discovered that certain iovec operations did not calculate page counts correctly. A local attacker could exploit this to crash the system, leading to a denial of service. (CVE-2010-4162)

Dan Rosenberg discovered that the SCSI subsystem did not correctly validate iov segments. A local attacker with access to a SCSI device could send specially crafted requests to crash the system, leading to a denial of service. (CVE-2010-4163, CVE-2010-4668)

Dave Jones discovered that the mprotect system call did not correctly handle merged VMAs. A local attacker could exploit this to crash the system, leading to a denial of service. (CVE-2010-4169)

Dan Rosenberg discovered that the RDS protocol did not correctly check ioctl arguments. A local attacker could exploit this to crash the system, leading to a denial of service. (CVE-2010-4175)

Alan Cox discovered that the HCI UART driver did not correctly check if a write operation was available. If the mmap_min-addr sysctl was changed from the Ubuntu default to a value of 0, a local attacker could exploit this flaw to gain root privileges. (CVE-2010-4242)

Brad Spengler discovered that the kernel did not correctly account for userspace memory allocations during exec() calls. A local attacker could exploit this to consume all system memory, leading to a denial of service. (CVE-2010-4243)

It was discovered that multithreaded exec did not handle CPU timers correctly. A local attacker could exploit this to crash the system, leading to a denial of service. (CVE-2010-4248)

It was discovered that named pipes did not correctly handle certain fcntl calls. A local attacker could exploit this to crash the system, leading to a denial of service. (CVE-2010-4256)

Dan Rosenburg discovered that the CAN subsystem leaked kernel addresses into the /proc filesystem. A local attacker could use this to increase the chances of a successful memory corruption exploit.
(CVE-2010-4565)

Dan Carpenter discovered that the Infiniband driver did not correctly handle certain requests. A local user could exploit this to crash the system or potentially gain root privileges. (CVE-2010-4649, CVE-2011-1044)

Kees Cook discovered that some ethtool functions did not correctly clear heap memory. A local attacker with CAP_NET_ADMIN privileges could exploit this to read portions of kernel heap memory, leading to a loss of privacy. (CVE-2010-4655)

Kees Cook discovered that the IOWarrior USB device driver did not correctly check certain size fields. A local attacker with physical access could plug in a specially crafted USB device to crash the system or potentially gain root privileges. (CVE-2010-4656)

Goldwyn Rodrigues discovered that the OCFS2 filesystem did not correctly clear memory when writing certain file holes. A local attacker could exploit this to read uninitialized data from the disk, leading to a loss of privacy. (CVE-2011-0463)

Dan Carpenter discovered that the TTPCI DVB driver did not check certain values during an ioctl. If the dvb-ttpci module was loaded, a local attacker could exploit this to crash the system, leading to a denial of service, or possibly gain root privileges. (CVE-2011-0521)

Jens Kuehnel discovered that the InfiniBand driver contained a race condition. On systems using InfiniBand, a local attacker could send specially crafted requests to crash the system, leading to a denial of service. (CVE-2011-0695)

Dan Rosenberg discovered that XFS did not correctly initialize memory. A local attacker could make crafted ioctl calls to leak portions of kernel stack memory, leading to a loss of privacy.
(CVE-2011-0711)

Rafael Dominguez Vega discovered that the caiaq Native Instruments USB driver did not correctly validate string lengths. A local attacker with physical access could plug in a specially crafted USB device to crash the system or potentially gain root privileges.
(CVE-2011-0712)

Kees Cook reported that /proc/pid/stat did not correctly filter certain memory locations. A local attacker could determine the memory layout of processes in an attempt to increase the chances of a successful memory corruption exploit. (CVE-2011-0726)

Timo Warns discovered that MAC partition parsing routines did not correctly calculate block counts. A local attacker with physical access could plug in a specially crafted block device to crash the system or potentially gain root privileges. (CVE-2011-1010)

Timo Warns discovered that LDM partition parsing routines did not correctly calculate block counts. A local attacker with physical access could plug in a specially crafted block device to crash the system, leading to a denial of service. (CVE-2011-1012)

Matthiew Herrb discovered that the drm modeset interface did not correctly handle a signed comparison. A local attacker could exploit this to crash the system or possibly gain root privileges.
(CVE-2011-1013)

Marek Olsak discovered that the Radeon GPU drivers did not correctly validate certain registers. On systems with specific hardware, a local attacker could exploit this to write to arbitrary video memory. (CVE-2011-1016)

Timo Warns discovered that the LDM disk partition handling code did not correctly handle certain values. By inserting a specially crafted disk device, a local attacker could exploit this to gain root privileges. (CVE-2011-1017)

Vasiliy Kulikov discovered that the CAP_SYS_MODULE capability was not needed to load kernel modules. A local attacker with the CAP_NET_ADMIN capability could load existing kernel modules, possibly increasing the attack surface available on the system.
(CVE-2011-1019)

It was discovered that the /proc filesystem did not correctly handle permission changes when programs executed. A local attacker could hold open files to examine details about programs running with higher privileges, potentially increasing the chances of exploiting additional vulnerabilities. (CVE-2011-1020)

Vasiliy Kulikov discovered that the Bluetooth stack did not correctly clear memory. A local attacker could exploit this to read kernel stack memory, leading to a loss of privacy. (CVE-2011-1078)

Vasiliy Kulikov discovered that the Bluetooth stack did not correctly check that device name strings were NULL terminated. A local attacker could exploit this to crash the system, leading to a denial of service, or leak contents of kernel stack memory, leading to a loss of privacy. (CVE-2011-1079)

Vasiliy Kulikov discovered that bridge network filtering did not check that name fields were NULL terminated. A local attacker could exploit this to leak contents of kernel stack memory, leading to a loss of privacy. (CVE-2011-1080)

Nelson Elhage discovered that the epoll subsystem did not correctly handle certain structures. A local attacker could create malicious requests that would hang the system, leading to a denial of service.
(CVE-2011-1082)

Neil Horman discovered that NFSv4 did not correctly handle certain orders of operation with ACL data. A remote attacker with access to an NFSv4 mount could exploit this to crash the system, leading to a denial of service. (CVE-2011-1090)

Johan Hovold discovered that the DCCP network stack did not correctly handle certain packet combinations. A remote attacker could send specially crafted network traffic that would crash the system, leading to a denial of service. (CVE-2011-1093)

Peter Huewe discovered that the TPM device did not correctly initialize memory. A local attacker could exploit this to read kernel heap memory contents, leading to a loss of privacy. (CVE-2011-1160)

Timo Warns discovered that OSF partition parsing routines did not correctly clear memory. A local attacker with physical access could plug in a specially crafted block device to read kernel memory, leading to a loss of privacy. (CVE-2011-1163)

Dan Rosenberg discovered that some ALSA drivers did not correctly check the adapter index during ioctl calls. If this driver was loaded, a local attacker could make a specially crafted ioctl call to gain root privileges. (CVE-2011-1169)

Vasiliy Kulikov discovered that the netfilter code did not check certain strings copied from userspace. A local attacker with netfilter access could exploit this to read kernel memory or crash the system, leading to a denial of service. (CVE-2011-1170, CVE-2011-1171, CVE-2011-1172, CVE-2011-2534)

Vasiliy Kulikov discovered that the Acorn Universal Networking driver did not correctly initialize memory. A remote attacker could send specially crafted traffic to read kernel stack memory, leading to a loss of privacy. (CVE-2011-1173)

Dan Rosenberg discovered that the IRDA subsystem did not correctly check certain field sizes. If a system was using IRDA, a remote attacker could send specially crafted traffic to crash the system or gain root privileges. (CVE-2011-1180)

Julien Tinnes discovered that the kernel did not correctly validate the signal structure from tkill(). A local attacker could exploit this to send signals to arbitrary threads, possibly bypassing expected restrictions. (CVE-2011-1182)

Ryan Sweat discovered that the GRO code did not correctly validate memory. In some configurations on systems using VLANs, a remote attacker could send specially crafted traffic to crash the system, leading to a denial of service. (CVE-2011-1478)

Dan Rosenberg discovered that the X.25 Rose network stack did not correctly handle certain fields. If a system was running with Rose enabled, a remote attacker could send specially crafted traffic to gain root privileges. (CVE-2011-1493)

Dan Rosenberg discovered that MPT devices did not correctly validate certain values in ioctl calls. If these drivers were loaded, a local attacker could exploit this to read arbitrary kernel memory, leading to a loss of privacy. (CVE-2011-1494, CVE-2011-1495)

Timo Warns discovered that the GUID partition parsing routines did not correctly validate certain structures. A local attacker with physical access could plug in a specially crafted block device to crash the system, leading to a denial of service. (CVE-2011-1577)

Tavis Ormandy discovered that the pidmap function did not correctly handle large requests. A local attacker could exploit this to crash the system, leading to a denial of service. (CVE-2011-1593)

Oliver Hartkopp and Dave Jones discovered that the CAN network driver did not correctly validate certain socket structures. If this driver was loaded, a local attacker could crash the system, leading to a denial of service. (CVE-2011-1598, CVE-2011-1748)

Vasiliy Kulikov discovered that the AGP driver did not check certain ioctl values. A local attacker with access to the video subsystem could exploit this to crash the system, leading to a denial of service, or possibly gain root privileges. (CVE-2011-1745, CVE-2011-2022)

Vasiliy Kulikov discovered that the AGP driver did not check the size of certain memory allocations. A local attacker with access to the video subsystem could exploit this to run the system out of memory, leading to a denial of service. (CVE-2011-1746)

Dan Rosenberg discovered that the DCCP stack did not correctly handle certain packet structures. A remote attacker could exploit this to crash the system, leading to a denial of service. (CVE-2011-1770)

Vasiliy Kulikov and Dan Rosenberg discovered that ecryptfs did not correctly check the origin of mount points. A local attacker could exploit this to trick the system into unmounting arbitrary mount points, leading to a denial of service. (CVE-2011-1833)

Vasiliy Kulikov discovered that taskstats listeners were not correctly handled. A local attacker could expoit this to exhaust memory and CPU resources, leading to a denial of service.
(CVE-2011-2484)

It was discovered that Bluetooth l2cap and rfcomm did not correctly initialize structures. A local attacker could exploit this to read portions of the kernel stack, leading to a loss of privacy.
(CVE-2011-2492)

Fernando Gont discovered that the IPv6 stack used predictable fragment identification numbers. A remote attacker could exploit this to exhaust network resources, leading to a denial of service.
(CVE-2011-2699)

The performance counter subsystem did not correctly handle certain counters. A local attacker could exploit this to crash the system, leading to a denial of service. (CVE-2011-2918)

This update fixes the following security issues :

  - A heap overflow flaw was found in the Linux kernel's     Transparent Inter-Process Communication protocol (TIPC)     implementation. A local, unprivileged user could use     this flaw to escalate their privileges. (CVE-2010-3859,     Important)

  - Missing sanity checks were found in gdth_ioctl_alloc()     in the gdth driver in the Linux kernel. A local user     with access to '/dev/gdth' on a 64-bit system could use     these flaws to cause a denial of service or escalate     their privileges. (CVE-2010-4157, Moderate)

  - A NULL pointer dereference flaw was found in the     Bluetooth HCI UART driver in the Linux kernel. A local,     unprivileged user could use this flaw to cause a denial     of service. (CVE-2010-4242, Moderate)

  - A flaw was found in the Linux kernel's garbage collector     for AF_UNIX sockets. A local, unprivileged user could     use this flaw to trigger a denial of service     (out-of-memory condition). (CVE-2010-4249, Moderate)

  - Missing initialization flaws were found in the Linux     kernel. A local, unprivileged user could use these flaws     to cause information leaks. (CVE-2010-3876,     CVE-2010-4072, CVE-2010-4073, CVE-2010-4075,     CVE-2010-4080, CVE-2010-4083, CVE-2010-4158, Low)

This update also fixes the following bugs :

  - A flaw was found in the Linux kernel where, if used in     conjunction with another flaw that can result in a     kernel Oops, could possibly lead to privilege     escalation. It does not affect Red Hat Enterprise Linux     4 as the sysctl panic_on_oops variable is turned on by     default. However, as a preventive measure if the     variable is turned off by an administrator, this update     addresses the issue. (BZ#659568)

  - On Intel I/O Controller Hub 9 (ICH9) hardware, jumbo     frame support is achieved by using page-based sk_buff     buffers without any packet split. The entire frame data     is copied to the page(s) rather than some to the     skb->data area and some to the page(s) when performing a     typical packet-split. This caused problems with the     filtering code and frames were getting dropped before     they were received by listening applications. This bug     could eventually lead to the IP address being released     and not being able to be re-acquired from DHCP if the     MTU (Maximum Transfer Unit) was changed (for an affected     interface using the e1000e driver). With this update,     frames are no longer dropped and an IP address is     correctly re-acquired after a previous release.
    (BZ#664667)

The system must be rebooted for this update to take effect.

Dan Rosenberg discovered that multiple terminal ioctls did not correctly initialize structure memory. A local attacker could exploit this to read portions of kernel stack memory, leading to a loss of privacy. (CVE-2010-4075)

Dan Rosenberg discovered that the socket filters did not correctly initialize structure memory. A local attacker could create malicious filters to read portions of kernel stack memory, leading to a loss of privacy. (CVE-2010-4158)

Dan Rosenberg discovered that the SCSI subsystem did not correctly validate iov segments. A local attacker with access to a SCSI device could send specially crafted requests to crash the system, leading to a denial of service. (CVE-2010-4163, CVE-2010-4668).

Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Dan Rosenberg discovered that multiple terminal ioctls did not correctly initialize structure memory. A local attacker could exploit this to read portions of kernel stack memory, leading to a loss of privacy. (CVE-2010-4075, CVE-2010-4076, CVE-2010-4077)

Dan Rosenberg discovered that the socket filters did not correctly initialize structure memory. A local attacker could create malicious filters to read portions of kernel stack memory, leading to a loss of privacy. (CVE-2010-4158)

Dan Rosenberg discovered that certain iovec operations did not calculate page counts correctly. A local attacker could exploit this to crash the system, leading to a denial of service. (CVE-2010-4162)

Dan Rosenberg discovered that the SCSI subsystem did not correctly validate iov segments. A local attacker with access to a SCSI device could send specially crafted requests to crash the system, leading to a denial of service. (CVE-2010-4163)

Dan Rosenberg discovered that the RDS protocol did not correctly check ioctl arguments. A local attacker could exploit this to crash the system, leading to a denial of service. (CVE-2010-4175)

Alan Cox discovered that the HCI UART driver did not correctly check if a write operation was available. If the mmap_min-addr sysctl was changed from the Ubuntu default to a value of 0, a local attacker could exploit this flaw to gain root privileges. (CVE-2010-4242).

Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

This kernel update for the SUSE Linux Enterprise 10 SP3 kernel fixes several security issues and bugs.

The following security issues were fixed :

  - A memory leak in the ethtool ioctl was fixed that could     disclose kernel memory to local attackers with     CAP_NET_ADMIN privileges. (CVE-2010-4655)

  - The dvb_ca_ioctl function in     drivers/media/dvb/ttpci/av7110_ca.c in the Linux kernel     did not check the sign of a certain integer field, which     allowed local users to cause a denial of service (memory     corruption) or possibly have unspecified other impact     via a negative value. (CVE-2011-0521)

  - The ax25_getname function in net/ax25/af_ax25.c in the     Linux kernel did not initialize a certain structure,     which allowed local users to obtain potentially     sensitive information from kernel stack memory by     reading a copy of this structure. (CVE-2010-3875)

  - net/packet/af_packet.c in the Linux kernel did not     properly initialize certain structure members, which     allowed local users to obtain potentially sensitive     information from kernel stack memory by leveraging the     CAP_NET_RAW capability to read copies of the applicable     structures. (CVE-2010-3876)

  - The get_name function in net/tipc/socket.c in the Linux     kernel did not initialize a certain structure, which     allowed local users to obtain potentially sensitive     information from kernel stack memory by reading a copy     of this structure. (CVE-2010-3877)

  - A stack memory information leak in the xfs FSGEOMETRY_V1     ioctl was fixed. (CVE-2011-0711)

  - The task_show_regs function in arch/s390/kernel/traps.c     in the Linux kernel on the s390 platform allowed local     users to obtain the values of the registers of an     arbitrary process by reading a status file under /proc/.
    (CVE-2011-0710)

  - The sctp_process_unk_param function in     net/sctp/sm_make_chunk.c in the Linux kernel, when SCTP     is enabled, allowed remote attackers to cause a denial     of service (system crash) via an SCTPChunkInit packet     containing multiple invalid parameters that require a     large amount of error data. (CVE-2010-1173)

  - The uart_get_count function in     drivers/serial/serial_core.c in the Linux kernel did not     properly initialize a certain structure member, which     allowed local users to obtain potentially sensitive     information from kernel stack memory via a TIOCGICOUNT     ioctl call. (CVE-2010-4075)

  - The rs_ioctl function in drivers/char/amiserial.c in the     Linux kernel did not properly initialize a certain     structure member, which allowed local users to obtain     potentially sensitive information from kernel stack     memory via a TIOCGICOUNT ioctl call. (CVE-2010-4076)

  - The ntty_ioctl_tiocgicount function in     drivers/char/nozomi.c in the Linux kernel did not     properly initialize a certain structure member, which     allowed local users to obtain potentially sensitive     information from kernel stack memory via a TIOCGICOUNT     ioctl call. (CVE-2010-4077)

  - The load_mixer_volumes function in sound/oss/soundcard.c     in the OSS sound subsystem in the Linux kernel     incorrectly expected that a certain name field ends with     a '0' character, which allowed local users to conduct     buffer overflow attacks and gain privileges, or possibly     obtain sensitive information from kernel memory, via a     SOUND_MIXER_SETLEVELS ioctl call. (CVE-2010-4527)

  - Race condition in the __exit_signal function in     kernel/exit.c in the Linux kernel allowed local users to     cause a denial of service via vectors related to     multithreaded exec, the use of a thread group leader in     kernel/posix-cpu-timers.c, and the selection of a new     thread group leader in the de_thread function in     fs/exec.c. (CVE-2010-4248)

  - The blk_rq_map_user_iov function in block/blk-map.c in     the Linux kernel allowed local users to cause a denial     of service (panic) via a zero-length I/O request in a     device ioctl to a SCSI device, related to an unaligned     map. NOTE: this vulnerability exists because of an     incomplete fix for CVE-2010-4163. (CVE-2010-4668)

  - The hci_uart_tty_open function in the HCI UART driver     (drivers/bluetooth/hci_ldisc.c) in the Linux kernel did     not verify whether the tty has a write operation, which     allowed local users to cause a denial of service (NULL     pointer dereference) via vectors related to the     Bluetooth driver. (CVE-2010-4242)

  - Integer underflow in the irda_getsockopt function in     net/irda/af_irda.c in the Linux kernel on platforms     other than x86 allowed local users to obtain potentially     sensitive information from kernel heap memory via an     IRLMP_ENUMDEVICES getsockopt call. (CVE-2010-4529)

  - The aun_incoming function in net/econet/af_econet.c in     the Linux kernel, when Econet is enabled, allowed remote     attackers to cause a denial of service (NULL pointer     dereference and OOPS) by sending an Acorn Universal     Networking (AUN) packet over UDP. (CVE-2010-4342)

  - Race condition in the sctp_icmp_proto_unreachable     function in net/sctp/input.c in Linux kernel allowed     remote attackers to cause a denial of service (panic)     via an ICMP unreachable message to a socket that is     already locked by a user, which causes the socket to be     freed and triggers list corruption, related to the     sctp_wait_for_connect function. (CVE-2010-4526)

Dan Rosenberg discovered that multiple terminal ioctls did not correctly initialize structure memory. A local attacker could exploit this to read portions of kernel stack memory, leading to a loss of privacy. (CVE-2010-4075)

Dan Rosenberg discovered that the socket filters did not correctly initialize structure memory. A local attacker could create malicious filters to read portions of kernel stack memory, leading to a loss of privacy. (CVE-2010-4158)

Dan Rosenberg discovered that certain iovec operations did not calculate page counts correctly. A local attacker could exploit this to crash the system, leading to a denial of service. (CVE-2010-4162)

Dan Rosenberg discovered that the SCSI subsystem did not correctly validate iov segments. A local attacker with access to a SCSI device could send specially crafted requests to crash the system, leading to a denial of service. (CVE-2010-4163, CVE-2010-4668)

Dan Rosenberg discovered multiple flaws in the X.25 facilities parsing. If a system was using X.25, a remote attacker could exploit this to crash the system, leading to a denial of service.
(CVE-2010-4164)

Alan Cox discovered that the HCI UART driver did not correctly check if a write operation was available. If the mmap_min-addr sysctl was changed from the Ubuntu default to a value of 0, a local attacker could exploit this flaw to gain root privileges. (CVE-2010-4242)

Nelson Elhage discovered that the kernel did not correctly handle process cleanup after triggering a recoverable kernel bug. If a local attacker were able to trigger certain kinds of kernel bugs, they could create a specially crafted process to gain root privileges.
(CVE-2010-4258)

Tavis Ormandy discovered that the install_special_mapping function could bypass the mmap_min_addr restriction. A local attacker could exploit this to mmap 4096 bytes below the mmap_min_addr area, possibly improving the chances of performing NULL pointer dereference attacks.
(CVE-2010-4346).

Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Updated kernel packages that fix multiple security issues, address several hundred bugs, and add numerous enhancements are now available as part of the ongoing support and maintenance of Red Hat Enterprise Linux version 5. This is the sixth regular update.

The Red Hat Security Response Team has rated this update as having important security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section.

The kernel packages contain the Linux kernel, the core of any Linux operating system.

This update fixes the following security issues :

* A NULL pointer dereference flaw was found in the igb driver in the Linux kernel. If both the Single Root I/O Virtualization (SR-IOV) feature and promiscuous mode were enabled on an interface using igb, it could result in a denial of service when a tagged VLAN packet is received on that interface. (CVE-2010-4263, Important)

* A missing sanity check was found in vbd_create() in the Xen hypervisor implementation. As CD-ROM drives are not supported by the blkback back-end driver, attempting to use a virtual CD-ROM drive with blkback could trigger a denial of service (crash) on the host system running the Xen hypervisor. (CVE-2010-4238, Moderate)

* A flaw was found in the Linux kernel execve() system call implementation. A local, unprivileged user could cause large amounts of memory to be allocated but not visible to the OOM (Out of Memory) killer, triggering a denial of service. (CVE-2010-4243, Moderate)

* A flaw was found in fixup_page_fault() in the Xen hypervisor implementation. If a 64-bit para-virtualized guest accessed a certain area of memory, it could cause a denial of service on the host system running the Xen hypervisor. (CVE-2010-4255, Moderate)

* A missing initialization flaw was found in the bfa driver used by Brocade Fibre Channel Host Bus Adapters. A local, unprivileged user could use this flaw to cause a denial of service by reading a file in the '/sys/class/fc_host/host#/statistics/' directory. (CVE-2010-4343, Moderate)

* Missing initialization flaws in the Linux kernel could lead to information leaks. (CVE-2010-3296, CVE-2010-3877, CVE-2010-4072, CVE-2010-4073, CVE-2010-4075, CVE-2010-4080, CVE-2010-4081, CVE-2010-4158, Low)

Red Hat would like to thank Kosuke Tatsukawa for reporting CVE-2010-4263; Vladymyr Denysov for reporting CVE-2010-4238; Brad Spengler for reporting CVE-2010-4243; Dan Rosenberg for reporting CVE-2010-3296, CVE-2010-4073, CVE-2010-4075, CVE-2010-4080, CVE-2010-4081, and CVE-2010-4158; Vasiliy Kulikov for reporting CVE-2010-3877; and Kees Cook for reporting CVE-2010-4072.

These updated packages also include several hundred bug fixes for and enhancements to the Linux kernel. Space precludes documenting each of these changes in this advisory and users are directed to the Red Hat Enterprise Linux 5.6 Release Notes for information on the most significant of these changes :

http://docs.redhat.com/docs/en-US/Red_Hat_Enterprise_Linux/5/html/ 5.6_Release_Notes/index.html

Refer to the kernel chapter in the Red Hat Enterprise Linux 5.6 Technical Notes for further information :

http://docs.redhat.com/docs/en-US/Red_Hat_Enterprise_Linux/5/html/ 5.6_Technical_Notes/kernel.html

All Red Hat Enterprise Linux 5 users are advised to install these updated packages, which address these vulnerabilities as well as fixing the bugs and adding the enhancements noted in the Red Hat Enterprise Linux 5.6 Release Notes and Technical Notes. The system must be rebooted for this update to take effect.

Dan Rosenberg discovered that the Linux kernel TIPC implementation contained multiple integer signedness errors. A local attacker could exploit this to gain root privileges. (CVE-2010-3859)

Dan Rosenberg discovered that multiple terminal ioctls did not correctly initialize structure memory. A local attacker could exploit this to read portions of kernel stack memory, leading to a loss of privacy. (CVE-2010-4075, CVE-2010-4076, CVE-2010-4077)

Dan Rosenberg discovered that the socket filters did not correctly initialize structure memory. A local attacker could create malicious filters to read portions of kernel stack memory, leading to a loss of privacy. (CVE-2010-4158)

Dan Rosenberg discovered that the Linux kernel L2TP implementation contained multiple integer signedness errors. A local attacker could exploit this to to crash the kernel, or possibly gain root privileges. (CVE-2010-4160)

Dan Rosenberg discovered that certain iovec operations did not calculate page counts correctly. A local attacker could exploit this to crash the system, leading to a denial of service. (CVE-2010-4162)

Dan Rosenberg discovered that the SCSI subsystem did not correctly validate iov segments. A local attacker with access to a SCSI device could send specially crafted requests to crash the system, leading to a denial of service. (CVE-2010-4163, CVE-2010-4668)

Dan Rosenberg discovered that the RDS protocol did not correctly check ioctl arguments. A local attacker could exploit this to crash the system, leading to a denial of service. (CVE-2010-4175)

Alan Cox discovered that the HCI UART driver did not correctly check if a write operation was available. If the mmap_min-addr sysctl was changed from the Ubuntu default to a value of 0, a local attacker could exploit this flaw to gain root privileges. (CVE-2010-4242)

Brad Spengler discovered that the kernel did not correctly account for userspace memory allocations during exec() calls. A local attacker could exploit this to consume all system memory, leading to a denial of service. (CVE-2010-4243)

Alex Shi and Eric Dumazet discovered that the network stack did not correctly handle packet backlogs. A remote attacker could exploit this by sending a large amount of network traffic to cause the system to run out of memory, leading to a denial of service. (CVE-2010-4251, CVE-2010-4805)

It was discovered that the ICMP stack did not correctly handle certain unreachable messages. If a remote attacker were able to acquire a socket lock, they could send specially crafted traffic that would crash the system, leading to a denial of service.
(CVE-2010-4526)

Dan Carpenter discovered that the Infiniband driver did not correctly handle certain requests. A local user could exploit this to crash the system or potentially gain root privileges. (CVE-2010-4649, CVE-2011-1044)

Kees Cook reported that /proc/pid/stat did not correctly filter certain memory locations. A local attacker could determine the memory layout of processes in an attempt to increase the chances of a successful memory corruption exploit. (CVE-2011-0726)

Timo Warns discovered that MAC partition parsing routines did not correctly calculate block counts. A local attacker with physical access could plug in a specially crafted block device to crash the system or potentially gain root privileges. (CVE-2011-1010)

Timo Warns discovered that LDM partition parsing routines did not correctly calculate block counts. A local attacker with physical access could plug in a specially crafted block device to crash the system, leading to a denial of service. (CVE-2011-1012)

Matthiew Herrb discovered that the drm modeset interface did not correctly handle a signed comparison. A local attacker could exploit this to crash the system or possibly gain root privileges.
(CVE-2011-1013)

It was discovered that the /proc filesystem did not correctly handle permission changes when programs executed. A local attacker could hold open files to examine details about programs running with higher privileges, potentially increasing the chances of exploiting additional vulnerabilities. (CVE-2011-1020)

Vasiliy Kulikov discovered that the Bluetooth stack did not correctly clear memory. A local attacker could exploit this to read kernel stack memory, leading to a loss of privacy. (CVE-2011-1078)

Vasiliy Kulikov discovered that the Bluetooth stack did not correctly check that device name strings were NULL terminated. A local attacker could exploit this to crash the system, leading to a denial of service, or leak contents of kernel stack memory, leading to a loss of privacy. (CVE-2011-1079)

Vasiliy Kulikov discovered that bridge network filtering did not check that name fields were NULL terminated. A local attacker could exploit this to leak contents of kernel stack memory, leading to a loss of privacy. (CVE-2011-1080)

Nelson Elhage discovered that the epoll subsystem did not correctly handle certain structures. A local attacker could create malicious requests that would hang the system, leading to a denial of service.
(CVE-2011-1082)

Neil Horman discovered that NFSv4 did not correctly handle certain orders of operation with ACL data. A remote attacker with access to an NFSv4 mount could exploit this to crash the system, leading to a denial of service. (CVE-2011-1090)

Johan Hovold discovered that the DCCP network stack did not correctly handle certain packet combinations. A remote attacker could send specially crafted network traffic that would crash the system, leading to a denial of service. (CVE-2011-1093)

Peter Huewe discovered that the TPM device did not correctly initialize memory. A local attacker could exploit this to read kernel heap memory contents, leading to a loss of privacy. (CVE-2011-1160)

Timo Warns discovered that OSF partition parsing routines did not correctly clear memory. A local attacker with physical access could plug in a specially crafted block device to read kernel memory, leading to a loss of privacy. (CVE-2011-1163)

Vasiliy Kulikov discovered that the netfilter code did not check certain strings copied from userspace. A local attacker with netfilter access could exploit this to read kernel memory or crash the system, leading to a denial of service. (CVE-2011-1170, CVE-2011-1171, CVE-2011-1172, CVE-2011-2534)

Vasiliy Kulikov discovered that the Acorn Universal Networking driver did not correctly initialize memory. A remote attacker could send specially crafted traffic to read kernel stack memory, leading to a loss of privacy. (CVE-2011-1173)

Dan Rosenberg discovered that the IRDA subsystem did not correctly check certain field sizes. If a system was using IRDA, a remote attacker could send specially crafted traffic to crash the system or gain root privileges. (CVE-2011-1180)

Ryan Sweat discovered that the GRO code did not correctly validate memory. In some configurations on systems using VLANs, a remote attacker could send specially crafted traffic to crash the system, leading to a denial of service. (CVE-2011-1478)

Dan Rosenberg discovered that the X.25 Rose network stack did not correctly handle certain fields. If a system was running with Rose enabled, a remote attacker could send specially crafted traffic to gain root privileges. (CVE-2011-1493)

Timo Warns discovered that the GUID partition parsing routines did not correctly validate certain structures. A local attacker with physical access could plug in a specially crafted block device to crash the system, leading to a denial of service. (CVE-2011-1577)

Oliver Hartkopp and Dave Jones discovered that the CAN network driver did not correctly validate certain socket structures. If this driver was loaded, a local attacker could crash the system, leading to a denial of service. (CVE-2011-1598)

Dan Rosenberg discovered that the DCCP stack did not correctly handle certain packet structures. A remote attacker could exploit this to crash the system, leading to a denial of service. (CVE-2011-1770)

Vasiliy Kulikov and Dan Rosenberg discovered that ecryptfs did not correctly check the origin of mount points. A local attacker could exploit this to trick the system into unmounting arbitrary mount points, leading to a denial of service. (CVE-2011-1833)

Vasiliy Kulikov discovered that taskstats listeners were not correctly handled. A local attacker could expoit this to exhaust memory and CPU resources, leading to a denial of service.
(CVE-2011-2484)

It was discovered that Bluetooth l2cap and rfcomm did not correctly initialize structures. A local attacker could exploit this to read portions of the kernel stack, leading to a loss of privacy.
(CVE-2011-2492)

Fernando Gont discovered that the IPv6 stack used predictable fragment identification numbers. A remote attacker could exploit this to exhaust network resources, leading to a denial of service.
(CVE-2011-2699)

The performance counter subsystem did not correctly handle certain counters. A local attacker could exploit this to crash the system, leading to a denial of service. (CVE-2011-2918)

From Red Hat Security Advisory 2011:0162 :

Updated kernel packages that fix multiple security issues and two bugs are now available for Red Hat Enterprise Linux 4.

The Red Hat Security Response Team has rated this update as having important security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section.

The kernel packages contain the Linux kernel, the core of any Linux operating system.

This update fixes the following security issues :

* A heap overflow flaw was found in the Linux kernel's Transparent Inter-Process Communication protocol (TIPC) implementation. A local, unprivileged user could use this flaw to escalate their privileges.
(CVE-2010-3859, Important)

* Missing sanity checks were found in gdth_ioctl_alloc() in the gdth driver in the Linux kernel. A local user with access to '/dev/gdth' on a 64-bit system could use these flaws to cause a denial of service or escalate their privileges. (CVE-2010-4157, Moderate)

* A NULL pointer dereference flaw was found in the Bluetooth HCI UART driver in the Linux kernel. A local, unprivileged user could use this flaw to cause a denial of service. (CVE-2010-4242, Moderate)

* A flaw was found in the Linux kernel's garbage collector for AF_UNIX sockets. A local, unprivileged user could use this flaw to trigger a denial of service (out-of-memory condition). (CVE-2010-4249, Moderate)

* Missing initialization flaws were found in the Linux kernel. A local, unprivileged user could use these flaws to cause information leaks. (CVE-2010-3876, CVE-2010-4072, CVE-2010-4073, CVE-2010-4075, CVE-2010-4080, CVE-2010-4083, CVE-2010-4158, Low)

Red Hat would like to thank Alan Cox for reporting CVE-2010-4242;
Vegard Nossum for reporting CVE-2010-4249; Vasiliy Kulikov for reporting CVE-2010-3876; Kees Cook for reporting CVE-2010-4072; and Dan Rosenberg for reporting CVE-2010-4073, CVE-2010-4075, CVE-2010-4080, CVE-2010-4083, and CVE-2010-4158.

This update also fixes the following bugs :

* A flaw was found in the Linux kernel where, if used in conjunction with another flaw that can result in a kernel Oops, could possibly lead to privilege escalation. It does not affect Red Hat Enterprise Linux 4 as the sysctl panic_on_oops variable is turned on by default.
However, as a preventive measure if the variable is turned off by an administrator, this update addresses the issue. Red Hat would like to thank Nelson Elhage for reporting this vulnerability. (BZ#659568)

* On Intel I/O Controller Hub 9 (ICH9) hardware, jumbo frame support is achieved by using page-based sk_buff buffers without any packet split. The entire frame data is copied to the page(s) rather than some to the skb->data area and some to the page(s) when performing a typical packet-split. This caused problems with the filtering code and frames were getting dropped before they were received by listening applications. This bug could eventually lead to the IP address being released and not being able to be re-acquired from DHCP if the MTU (Maximum Transfer Unit) was changed (for an affected interface using the e1000e driver). With this update, frames are no longer dropped and an IP address is correctly re-acquired after a previous release.
(BZ#664667)

Users should upgrade to these updated packages, which contain backported patches to correct these issues. The system must be rebooted for this update to take effect.

The remote VMware ESX / ESXi host is missing a security-related patch.
It is, therefore, affected by multiple vulnerabilities in several third-party components and libraries :

  - Kernel
  - krb5
  - glibc
  - mtp2sas
  - mptsas
  - mptspi

Various bug fixes and the stable 2.6.35.9 release.

Note that Tenable Network Security has extracted the preceding description block directly from the Fedora security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

The remote Redhat Enterprise Linux 6 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2011:0007 advisory.

    * Buffer overflow in eCryptfs. When /dev/ecryptfs has world writable     permissions (which it does not, by default, on Red Hat Enterprise Linux 6),     a local, unprivileged user could use this flaw to cause a denial of service     or possibly escalate their privileges. (CVE-2010-2492, Important)

    * Integer overflow in the RDS protocol implementation could allow a local,     unprivileged user to cause a denial of service or escalate their     privileges. (CVE-2010-3865, Important)

    * Missing boundary checks in the PPP over L2TP sockets implementation could     allow a local, unprivileged user to cause a denial of service or escalate     their privileges. (CVE-2010-4160, Important)

    * NULL pointer dereference in the igb driver. If both Single Root I/O     Virtualization (SR-IOV) and promiscuous mode were enabled on an interface     using igb, it could result in a denial of service when a tagged VLAN packet     is received on that interface. (CVE-2010-4263, Important)

    * Missing initialization flaw in the XFS file system implementation, and in     the network traffic policing implementation, could allow a local,     unprivileged user to cause an information leak. (CVE-2010-3078,     CVE-2010-3477, Moderate)

    * NULL pointer dereference in the Open Sound System compatible sequencer     driver could allow a local, unprivileged user with access to /dev/sequencer     to cause a denial of service. /dev/sequencer is only accessible to root and     users in the audio group by default. (CVE-2010-3080, Moderate)

    * Flaw in the ethtool IOCTL handler could allow a local user to cause an     information leak. (CVE-2010-3861, Moderate)

    * Flaw in bcm_connect() in the Controller Area Network (CAN) Broadcast     Manager. On 64-bit systems, writing the socket address may overflow the     procname character array. (CVE-2010-3874, Moderate)

    * Flaw in the module for monitoring the sockets of INET transport     protocols could allow a local, unprivileged user to cause a denial of     service. (CVE-2010-3880, Moderate)

    * Missing boundary checks in the block layer implementation could allow a     local, unprivileged user to cause a denial of service. (CVE-2010-4162,     CVE-2010-4163, CVE-2010-4668, Moderate)

    * NULL pointer dereference in the Bluetooth HCI UART driver could allow a     local, unprivileged user to cause a denial of service. (CVE-2010-4242,     Moderate)

    * Flaw in the Linux kernel CPU time clocks implementation for the POSIX     clock interface could allow a local, unprivileged user to cause a denial of     service. (CVE-2010-4248, Moderate)

    * Flaw in the garbage collector for AF_UNIX sockets could allow a local,     unprivileged user to trigger a denial of service. (CVE-2010-4249, Moderate)

    * Missing upper bound integer check in the AIO implementation could allow a     local, unprivileged user to cause an information leak. (CVE-2010-3067, Low)

    * Missing initialization flaws could lead to information leaks.
    (CVE-2010-3298, CVE-2010-3876, CVE-2010-4072, CVE-2010-4073, CVE-2010-4074,     CVE-2010-4075, CVE-2010-4077, CVE-2010-4079, CVE-2010-4080, CVE-2010-4081,     CVE-2010-4082, CVE-2010-4083, CVE-2010-4158, Low)

    * Missing initialization flaw in KVM could allow a privileged host user     with access to /dev/kvm to cause an information leak. (CVE-2010-4525, Low)

    Red Hat would like to thank Andre Osterhues for reporting CVE-2010-2492;
    Thomas Pollet for reporting CVE-2010-3865; Dan Rosenberg for reporting     CVE-2010-4160, CVE-2010-3078, CVE-2010-3874, CVE-2010-4162, CVE-2010-4163,     CVE-2010-3298, CVE-2010-4073, CVE-2010-4074, CVE-2010-4075, CVE-2010-4077,     CVE-2010-4079, CVE-2010-4080, CVE-2010-4081, CVE-2010-4082, CVE-2010-4083,     and CVE-2010-4158; Kosuke Tatsukawa for reporting CVE-2010-4263; Tavis     Ormandy for reporting CVE-2010-3080 and CVE-2010-3067; Kees Cook for     reporting CVE-2010-3861 and CVE-2010-4072; Nelson Elhage for reporting     CVE-2010-3880; Alan Cox for reporting CVE-2010-4242; Vegard Nossum for     reporting CVE-2010-4249; Vasiliy Kulikov for reporting CVE-2010-3876; and     Stephan Mueller of atsec information security for reporting CVE-2010-4525.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

This update of the openSUSE 11.2 kernel fixes lots of security issues.

Following security issues were fixed: CVE-2011-1493: In the rose networking stack, when parsing the FAC_NATIONAL_DIGIS facilities field, it was possible for a remote host to provide more digipeaters than expected, resulting in heap corruption. Check against ROSE_MAX_DIGIS to prevent overflows, and abort facilities parsing on failure.

CVE-2011-1182: Local attackers could send signals to their programs that looked like coming from the kernel, potentially gaining privileges in the context of setuid programs.

CVE-2011-1082: The epoll subsystem in Linux did not prevent users from creating circular epoll file structures, potentially leading to a denial of service (kernel deadlock).

CVE-2011-1163: The code for evaluating OSF partitions (in fs/partitions/osf.c) contained a bug that leaks data from kernel heap memory to userspace for certain corrupted OSF partitions.

CVE-2011-1012: The code for evaluating LDM partitions (in fs/partitions/ldm.c) contained a bug that could crash the kernel for certain corrupted LDM partitions.

CVE-2011-1010: The code for evaluating Mac partitions (in fs/partitions/mac.c) contained a bug that could crash the kernel for certain corrupted Mac partitions.

CVE-2011-1476: Specially crafted requests may be written to /dev/sequencer resulting in an underflow when calculating a size for a copy_from_user() operation in the driver for MIDI interfaces. On x86, this just returns an error, but it could have caused memory corruption on other architectures. Other malformed requests could have resulted in the use of uninitialized variables.

CVE-2011-1477: Due to a failure to validate user-supplied indexes in the driver for Yamaha YM3812 and OPL-3 chips, a specially crafted ioctl request could have been sent to /dev/sequencer, resulting in reading and writing beyond the bounds of heap buffers, and potentially allowing privilege escalation.

CVE-2011-1090: A page allocator issue in NFS v4 ACL handling that could lead to a denial of service (crash) was fixed.

CVE-2010-3880: net/ipv4/inet_diag.c in the Linux kernel did not properly audit INET_DIAG bytecode, which allowed local users to cause a denial of service (kernel infinite loop) via crafted INET_DIAG_REQ_BYTECODE instructions in a netlink message that contains multiple attribute elements, as demonstrated by INET_DIAG_BC_JMP instructions.

CVE-2011-0521: The dvb_ca_ioctl function in drivers/media/dvb/ttpci/av7110_ca.c in the Linux kernel did not check the sign of a certain integer field, which allowed local users to cause a denial of service (memory corruption) or possibly have unspecified other impact via a negative value.

CVE-2010-3875: The ax25_getname function in net/ax25/af_ax25.c in the Linux kernel did not initialize a certain structure, which allowed local users to obtain potentially sensitive information from kernel stack memory by reading a copy of this structure.

CVE-2010-3876: net/packet/af_packet.c in the Linux kernel did not properly initialize certain structure members, which allowed local users to obtain potentially sensitive information from kernel stack memory by leveraging the CAP_NET_RAW capability to read copies of the applicable structures.

CVE-2010-3877: The get_name function in net/tipc/socket.c in the Linux kernel did not initialize a certain structure, which allowed local users to obtain potentially sensitive information from kernel stack memory by reading a copy of this structure.

CVE-2010-3705: The sctp_auth_asoc_get_hmac function in net/sctp/auth.c in the Linux kernel did not properly validate the hmac_ids array of an SCTP peer, which allowed remote attackers to cause a denial of service (memory corruption and panic) via a crafted value in the last element of this array.

CVE-2011-0711: A stack memory information leak in the xfs FSGEOMETRY_V1 ioctl was fixed.

CVE-2011-0712: Multiple buffer overflows in the caiaq Native Instruments USB audio functionality in the Linux kernel might have allowed attackers to cause a denial of service or possibly have unspecified other impact via a long USB device name, related to (1) the snd_usb_caiaq_audio_init function in sound/usb/caiaq/audio.c and (2) the snd_usb_caiaq_midi_init function in sound/usb/caiaq/midi.c.

CVE-2010-1173: The sctp_process_unk_param function in net/sctp/sm_make_chunk.c in the Linux kernel, when SCTP is enabled, allowed remote attackers to cause a denial of service (system crash) via an SCTPChunkInit packet containing multiple invalid parameters that require a large amount of error data.

CVE-2010-4075: The uart_get_count function in drivers/serial/serial_core.c in the Linux kernel did not properly initialize a certain structure member, which allowed local users to obtain potentially sensitive information from kernel stack memory via a TIOCGICOUNT ioctl call.

CVE-2010-4076: The rs_ioctl function in drivers/char/amiserial.c in the Linux kernel did not properly initialize a certain structure member, which allowed local users to obtain potentially sensitive information from kernel stack memory via a TIOCGICOUNT ioctl call.

CVE-2010-4077: The ntty_ioctl_tiocgicount function in drivers/char/nozomi.c in the Linux kernel did not properly initialize a certain structure member, which allowed local users to obtain potentially sensitive information from kernel stack memory via a TIOCGICOUNT ioctl call.

CVE-2010-4248: Race condition in the __exit_signal function in kernel/exit.c in the Linux kernel allowed local users to cause a denial of service via vectors related to multithreaded exec, the use of a thread group leader in kernel/posix-cpu-timers.c, and the selection of a new thread group leader in the de_thread function in fs/exec.c.

CVE-2010-4243: fs/exec.c in the Linux kernel did not enable the OOM Killer to assess use of stack memory by arrays representing the (1) arguments and (2) environment, which allows local users to cause a denial of service (memory consumption) via a crafted exec system call, aka an 'OOM dodging issue,' a related issue to CVE-2010-3858.

CVE-2010-4648: Fixed cryptographic weakness potentially leaking information to remote (but physically nearby) users in the orinoco wireless driver.

CVE-2010-4527: The load_mixer_volumes function in sound/oss/soundcard.c in the OSS sound subsystem in the Linux kernel incorrectly expected that a certain name field ends with a '\0' character, which allowed local users to conduct buffer overflow attacks and gain privileges, or possibly obtain sensitive information from kernel memory, via a SOUND_MIXER_SETLEVELS ioctl call.

CVE-2010-4668: The blk_rq_map_user_iov function in block/blk-map.c in the Linux kernel allowed local users to cause a denial of service (panic) via a zero-length I/O request in a device ioctl to a SCSI device, related to an unaligned map. NOTE: this vulnerability exists because of an incomplete fix for CVE-2010-4163.

CVE-2010-4650: A kernel buffer overflow in the cuse server module was fixed, which might have allowed local privilege escalation. However only CUSE servers could exploit it and /dev/cuse is normally restricted to root.

CVE-2010-4649: Integer overflow in the ib_uverbs_poll_cq function in drivers/infiniband/core/uverbs_cmd.c in the Linux kernel allowed local users to cause a denial of service (memory corruption) or possibly have unspecified other impact via a large value of a certain structure member.

CVE-2010-4346: The install_special_mapping function in mm/mmap.c in the Linux kernel did not make an expected security_file_mmap function call, which allowed local users to bypass intended mmap_min_addr restrictions and possibly conduct NULL pointer dereference attacks via a crafted assembly-language application.

CVE-2010-4529: Integer underflow in the irda_getsockopt function in net/irda/af_irda.c in the Linux kernel on platforms other than x86 allowed local users to obtain potentially sensitive information from kernel heap memory via an IRLMP_ENUMDEVICES getsockopt call.

CVE-2010-4342: The aun_incoming function in net/econet/af_econet.c in the Linux kernel, when Econet is enabled, allowed remote attackers to cause a denial of service (NULL pointer dereference and OOPS) by sending an Acorn Universal Networking (AUN) packet over UDP.

CVE-2010-3849: The econet_sendmsg function in net/econet/af_econet.c in the Linux kernel, when an econet address is configured, allowed local users to cause a denial of service (NULL pointer dereference and OOPS) via a sendmsg call that specifies a NULL value for the remote address field.

CVE-2010-3848: Stack-based buffer overflow in the econet_sendmsg function in net/econet/af_econet.c in the Linux kernel when an econet address is configured, allowed local users to gain privileges by providing a large number of iovec structures.

CVE-2010-3850: The ec_dev_ioctl function in net/econet/af_econet.c in the Linux kernel did not require the CAP_NET_ADMIN capability, which allowed local users to bypass intended access restrictions and configure econet addresses via an SIOCSIFADDR ioctl call.

CVE-2010-3699: The backend driver in Xen 3.x allows guest OS users to cause a denial of service via a kernel thread leak, which prevents the device and guest OS from being shut down or create a zombie domain, causes a hang in zenwatch, or prevents unspecified xm commands from working properly, related to (1) netback, (2) blkback, or (3) blktap.

CVE-2010-4073: The ipc subsystem in the Linux kernel did not initialize certain structures, which allowed local users to obtain potentially sensitive information from kernel stack memory via vectors related to the (1) compat_sys_semctl, (2) compat_sys_msgctl, and (3) compat_sys_shmctl functions in ipc/compat.c; and the (4) compat_sys_mq_open and (5) compat_sys_mq_getsetattr functions in ipc/compat_mq.c.

CVE-2010-4072: The copy_shmid_to_user function in ipc/shm.c in the Linux kernel did not initialize a certain structure, which allowed local users to obtain potentially sensitive information from kernel stack memory via vectors related to the shmctl system call and the 'old shm interface.'

CVE-2010-4083: The copy_semid_to_user function in ipc/sem.c in the Linux kernel did not initialize a certain structure, which allowed local users to obtain potentially sensitive information from kernel stack memory via a (1) IPC_INFO, (2) SEM_INFO, (3) IPC_STAT, or (4) SEM_STAT command in a semctl system call.

The remote Redhat Enterprise Linux 4 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2011:0162 advisory.

  - kernel: tipc: heap overflow in tipc_msg_build() (CVE-2010-3859)

  - kernel: net/packet/af_packet.c: reading uninitialized stack memory (CVE-2010-3876)

  - kernel: ipc/shm.c: reading uninitialized stack memory (CVE-2010-4072)

  - kernel: ipc/compat*.c: reading uninitialized stack memory (CVE-2010-4073)

  - kernel: drivers/serial/serial_core.c: reading uninitialized stack memory (CVE-2010-4075)

  - kernel: drivers/sound/pci/rme9652/hdsp.c: reading uninitialized stack memory (CVE-2010-4080)

  - kernel: ipc/sem.c: reading uninitialized stack memory (CVE-2010-4083)

  - kernel: gdth: integer overflow in ioc_general() (CVE-2010-4157)

  - kernel: socket filters infoleak (CVE-2010-4158)

  - kernel: missing tty ops write function presence check in hci_uart_tty_open() (CVE-2010-4242)

  - kernel: unix socket local dos (CVE-2010-4249)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Several vulnerabilities have been discovered in the Linux kernel that may lead to a privilege escalation, denial of service or information leak. The Common Vulnerabilities and Exposures project identifies the following problems :

  - CVE-2010-2524     David Howells reported an issue in the Common Internet     File System (CIFS). Local users could cause arbitrary     CIFS shares to be mounted by introducing malicious     redirects.

  - CVE-2010-3875     Vasiliy Kulikov discovered an issue in the Linux     implementation of the Amateur Radio AX.25 Level 2     protocol. Local users may obtain access to sensitive     kernel memory.

  - CVE-2010-4075     Dan Rosenberg reported an issue in the tty layer that     may allow local users to obtain access to sensitive     kernel memory.

  - CVE-2010-4655     Kees Cook discovered several issues in the ethtool     interface which may allow local users with the     CAP_NET_ADMIN capability to obtain access to sensitive     kernel memory.

  - CVE-2011-0695     Jens Kuehnel reported an issue in the InfiniBand stack.
    Remote attackers can exploit a race condition to cause a     denial of service (kernel panic).

  - CVE-2011-0710     Al Viro reported an issue in the /proc/<pid>/status     interface on the s390 architecture. Local users could     gain access to sensitive memory in processes they do not     own via the task_show_regs entry.

  - CVE-2011-0711     Dan Rosenberg reported an issue in the XFS filesystem.
    Local users may obtain access to sensitive kernel     memory.

  - CVE-2011-0726     Kees Cook reported an issue in the /proc/<pid>/stat     implementation. Local users could learn the text     location of a process, defeating protections provided by     address space layout randomization (ASLR).

  - CVE-2011-1010     Timo Warns reported an issue in the Linux support for     Mac partition tables. Local users with physical access     could cause a denial of service (panic) by adding a     storage device with a malicious map_count value.

  - CVE-2011-1012     Timo Warns reported an issue in the Linux support for     LDM partition tables. Local users with physical access     could cause a denial of service (Oops) by adding a     storage device with an invalid VBLK value in the VMDB     structure.

  - CVE-2011-1017     Timo Warns reported an issue in the Linux support for     LDM partition tables. Users with physical access can     gain access to sensitive kernel memory or gain elevated     privileges by adding a storage device with a specially     crafted LDM partition.

  - CVE-2011-1078     Vasiliy Kulikov discovered an issue in the Bluetooth     subsystem. Local users can obtain access to sensitive     kernel memory.

  - CVE-2011-1079     Vasiliy Kulikov discovered an issue in the Bluetooth     subsystem. Local users with the CAP_NET_ADMIN capability     can cause a denial of service (kernel Oops).

  - CVE-2011-1080     Vasiliy Kulikov discovered an issue in the Netfilter     subsystem. Local users can obtain access to sensitive     kernel memory.

  - CVE-2011-1090     Neil Horman discovered a memory leak in the setacl()     call on NFSv4 filesystems. Local users can exploit this     to cause a denial of service (Oops).

  - CVE-2011-1093     Johan Hovold reported an issue in the Datagram     Congestion Control Protocol (DCCP) implementation.
    Remote users could cause a denial of service by sending     data after closing a socket.

  - CVE-2011-1160     Peter Huewe reported an issue in the Linux kernel's     support for TPM security chips. Local users with     permission to open the device can gain access to     sensitive kernel memory.

  - CVE-2011-1163     Timo Warns reported an issue in the kernel support for     Alpha OSF format disk partitions. Users with physical     access can gain access to sensitive kernel memory by     adding a storage device with a specially crafted OSF     partition.

  - CVE-2011-1170     Vasiliy Kulikov reported an issue in the Netfilter arp     table implementation. Local users with the CAP_NET_ADMIN     capability can gain access to sensitive kernel memory.

  - CVE-2011-1171     Vasiliy Kulikov reported an issue in the Netfilter IP     table implementation. Local users with the CAP_NET_ADMIN     capability can gain access to sensitive kernel memory.

  - CVE-2011-1172     Vasiliy Kulikov reported an issue in the Netfilter IP6     table implementation. Local users with the CAP_NET_ADMIN     capability can gain access to sensitive kernel memory.

  - CVE-2011-1173     Vasiliy Kulikov reported an issue in the Acorn Econet     protocol implementation. Local users can obtain access     to sensitive kernel memory on systems that use this rare     hardware.

  - CVE-2011-1180     Dan Rosenberg reported a buffer overflow in the     Information Access Service of the IrDA protocol, used     for Infrared devices. Remote attackers within IR device     range can cause a denial of service or possibly gain     elevated privileges.

  - CVE-2011-1182     Julien Tinnes reported an issue in the rt_sigqueueinfo     interface. Local users can generate signals with     falsified source pid and uid information.

  - CVE-2011-1477     Dan Rosenberg reported issues in the Open Sound System     driver for cards that include a Yamaha FM synthesizer     chip. Local users can cause memory corruption resulting     in a denial of service. This issue does not affect     official Debian Linux image packages as they no longer     provide support for OSS. However, custom kernels built     from Debians linux-source-2.6.26 may have enabled this     configuration and would therefore be vulnerable.

  - CVE-2011-1493     Dan Rosenburg reported two issues in the Linux     implementation of the Amateur Radio X.25 PLP (Rose)     protocol. A remote user can cause a denial of service by     providing specially crafted facilities fields.

  - CVE-2011-1577     Timo Warns reported an issue in the Linux support for     GPT partition tables. Local users with physical access     could cause a denial of service (Oops) by adding a     storage device with a malicious partition table header.

  - CVE-2011-1593     Robert Swiecki reported a signednes issue in the     next_pidmap() function, which can be exploited my local     users to cause a denial of service.

  - CVE-2011-1598     Dave Jones reported an issue in the Broadcast Manager     Controller Area Network (CAN/BCM) protocol that may     allow local users to cause a NULL pointer dereference,     resulting in a denial of service.

  - CVE-2011-1745     Vasiliy Kulikov reported an issue in the Linux support     for AGP devices. Local users can obtain elevated     privileges or cause a denial of service due to missing     bounds checking in the AGPIOC_BIND ioctl. On default     Debian installations, this is exploitable only by users     in the video group.

  - CVE-2011-1746     Vasiliy Kulikov reported an issue in the Linux support     for AGP devices. Local users can obtain elevated     privileges or cause a denial of service due to missing     bounds checking in the agp_allocate_memory and     agp_create_user_memory. On default Debian installations,     this is exploitable only by users in the video group.

  - CVE-2011-1748     Oliver Kartkopp reported an issue in the Controller Area     Network (CAN) raw socket implementation which permits     ocal users to cause a NULL pointer dereference,     resulting in a denial of service.

  - CVE-2011-1759     Dan Rosenberg reported an issue in the support for     executing 'old ABI' binaries on ARM processors. Local     users can obtain elevated privileges due to insufficient     bounds checking in the semtimedop system call.

  - CVE-2011-1767     Alexecy Dobriyan reported an issue in the GRE over IP     implementation. Remote users can cause a denial of     service by sending a packet during module     initialization.

  - CVE-2011-1768     Alexecy Dobriyan reported an issue in the IP tunnels     implementation. Remote users can cause a denial of     service by sending a packet during module     initialization.

  - CVE-2011-1776     Timo Warns reported an issue in the Linux implementation     for GUID partitions. Users with physical access can gain     access to sensitive kernel memory by adding a storage     device with a specially crafted corrupted invalid     partition table.

  - CVE-2011-2022     Vasiliy Kulikov reported an issue in the Linux support     for AGP devices. Local users can obtain elevated     privileges or cause a denial of service due to missing     bounds checking in the AGPIOC_UNBIND ioctl. On default     Debian installations, this is exploitable only by users     in the video group.

  - CVE-2011-2182     Ben Hutchings reported an issue with the fix for     CVE-2011-1017 (see above) that made it insufficient to     resolve the issue.

ID	名称	产品	系列	发布时间	最近更新时间	严重程度
51786	CentOS 4 : kernel (CESA-2011:0162)	Nessus	CentOS Local Security Checks	2011/1/28	2021/1/4	medium
56190	USN-1202-1 : linux-ti-omap4 vulnerabilities	Nessus	Ubuntu Local Security Checks	2011/9/14	2016/5/26	high
60938	Scientific Linux Security Update : kernel on SL4.x i386/x86_64	Nessus	Scientific Linux Local Security Checks	2012/8/1	2021/1/14	medium
52598	Ubuntu 10.04 LTS : linux-ec2 vulnerabilities (USN-1086-1)	Nessus	Ubuntu Local Security Checks	2011/3/9	2019/9/19	medium
52739	Ubuntu 9.10 : linux, linux-ec2 vulnerabilities (USN-1089-1)	Nessus	Ubuntu Local Security Checks	2011/3/21	2019/9/19	medium
52971	SuSE 10 Security Update : Linux kernel (ZYPP Patch Number 7381)	Nessus	SuSE Local Security Checks	2011/3/25	2021/1/19	high
53303	Ubuntu 8.04 LTS : linux vulnerabilities (USN-1105-1)	Nessus	Ubuntu Local Security Checks	2011/4/6	2019/9/19	high
51522	RHEL 5 : kernel (RHSA-2011:0017)	Nessus	Red Hat Local Security Checks	2011/1/14	2021/1/14	medium
56192	USN-1204-1 : linux-fsl-imx51 vulnerabilities	Nessus	Ubuntu Local Security Checks	2011/9/14	2016/1/14	high
68182	Oracle Linux 4 : kernel (ELSA-2011-0162)	Nessus	Oracle Linux Local Security Checks	2013/7/12	2021/8/24	medium
89680	VMware ESX / ESXi Third-Party Libraries Multiple Vulnerabilities (VMSA-2011-0012) (remote check)	Nessus	Misc.	2016/3/4	2023/5/14	high
50979	Fedora 14 : kernel-2.6.35.9-64.fc14 (2010-18493)	Nessus	Fedora Local Security Checks	2010/12/6	2021/1/11	medium
51500	RHEL 6 : kernel (RHSA-2011:0007)	Nessus	Red Hat Local Security Checks	2011/1/12	2025/4/14	high
53740	openSUSE Security Update : kernel (openSUSE-SU-2011:0346-1)	Nessus	SuSE Local Security Checks	2011/5/5	2021/1/14	high
51569	RHEL 4 : kernel (RHSA-2011:0162)	Nessus	Red Hat Local Security Checks	2011/1/19	2024/4/21	medium
55170	Debian DSA-2264-1 : linux-2.6 - privilege escalation/denial of service/information leak	Nessus	Debian Local Security Checks	2011/6/20	2021/1/4	high

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