Several local vulnerabilities have been discovered in the Linux kernel that may lead to a denial of service or the execution of arbitrary code. The Common Vulnerabilities and Exposures project identifies the following problems :

  - CVE-2006-6058     LMH reported an issue in the minix filesystem that     allows local users with mount privileges to create a DoS     (printk flood) by mounting a specially crafted corrupt     filesystem.

  - CVE-2007-5966     Warren Togami discovered an issue in the hrtimer     subsystem that allows a local user to cause a DoS (soft     lockup) by requesting a timer sleep for a long period of     time leading to an integer overflow.

  - CVE-2007-6063     Venustech AD-LAB discovered a buffer overflow in the     isdn ioctl handling, exploitable by a local user.

  - CVE-2007-6206     Blake Frantz discovered that when a core file owned by a     non-root user exists, and a root-owned process dumps     core over it, the core file retains its original     ownership. This could be used by a local user to gain     access to sensitive information.

  - CVE-2007-6417     Hugh Dickins discovered an issue in the tmpfs filesystem     where, under a rare circumstance, a kernel page may be     improperly cleared, leaking sensitive kernel memory to     userspace or resulting in a DoS (crash).

These problems have been fixed in the stable distribution in version 2.6.18.dfsg.1-13etch6.

The following matrix lists additional packages that were rebuilt for compatibility with or to take advantage of this update :

                           Debian 4.0 (etch)           fai-kernels               1.17+etch.13etch6           user-mode-linux           2.6.18-1um-2etch.13etch6

The minix filesystem did not properly validate certain filesystem values. If a local attacker could trick the system into attempting to mount a corrupted minix filesystem, the kernel could be made to hang for long periods of time, resulting in a denial of service. This was only vulnerable in Ubuntu 7.04 and 7.10. (CVE-2006-6058)

The signal handling on PowerPC systems using HTX allowed local users to cause a denial of service via floating point corruption. This was only vulnerable in Ubuntu 6.10 and 7.04. (CVE-2007-3107)

The Linux kernel did not properly validate the hop-by-hop IPv6 extended header. Remote attackers could send a crafted IPv6 packet and cause a denial of service via kernel panic. This was only vulnerable in Ubuntu 7.04. (CVE-2007-4567)

The JFFS2 filesystem with ACL support enabled did not properly store permissions during inode creation and ACL setting. Local users could possibly access restricted files after a remount. This was only vulnerable in Ubuntu 7.04 and 7.10. (CVE-2007-4849)

Chris Evans discovered an issue with certain drivers that use the ieee80211_rx function. Remote attackers could send a crafted 802.11 frame and cause a denial of service via crash. This was only vulnerable in Ubuntu 7.04 and 7.10. (CVE-2007-4997)

Alex Smith discovered an issue with the pwc driver for certain webcam devices. A local user with physical access to the system could remove the device while a userspace application had it open and cause the USB subsystem to block. This was only vulnerable in Ubuntu 7.04.
(CVE-2007-5093)

Scott James Remnant discovered a coding error in ptrace. Local users could exploit this and cause the kernel to enter an infinite loop.
This was only vulnerable in Ubuntu 7.04 and 7.10. (CVE-2007-5500)

It was discovered that the Linux kernel could dereference a NULL pointer when processing certain IPv4 TCP packets. A remote attacker could send a crafted TCP ACK response and cause a denial of service via crash. This was only vulnerable in Ubuntu 7.10. (CVE-2007-5501)

Warren Togami discovered that the hrtimer subsystem did not properly check for large relative timeouts. A local user could exploit this and cause a denial of service via soft lockup. (CVE-2007-5966)

Venustech AD-LAB discovered a buffer overflow in the isdn net subsystem. This issue is exploitable by local users via crafted input to the isdn_ioctl function. (CVE-2007-6063)

It was discovered that the isdn subsystem did not properly check for NULL termination when performing ioctl handling. A local user could exploit this to cause a denial of service. (CVE-2007-6151)

Blake Frantz discovered that when a root process overwrote an existing core file, the resulting core file retained the previous core file's ownership. Local users could exploit this to gain access to sensitive information. (CVE-2007-6206)

Hugh Dickins discovered the when using the tmpfs filesystem, under rare circumstances, a kernel page may be improperly cleared. A local user may be able to exploit this and read sensitive kernel data or cause a denial of service via crash. (CVE-2007-6417)

Bill Roman discovered that the VFS subsystem did not properly check access modes. A local user may be able to gain removal privileges on directories. (CVE-2008-0001).

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.

Some vulnerabilities were discovered and corrected in the Linux 2.6 kernel :

The Datagram Congestion Control Protocol (DCCP) subsystem in the Linux kernel 2.6.18, and probably other versions, does not properly check feature lengths, which might allow remote attackers to execute arbitrary code, related to an unspecified overflow. (CVE-2008-2358)

VFS in the Linux kernel before 2.6.22.16, and 2.6.23.x before 2.6.23.14, performs tests of access mode by using the flag variable instead of the acc_mode variable, which might allow local users to bypass intended permissions and remove directories. (CVE-2008-0001)

Linux kernel before 2.6.22.17, when using certain drivers that register a fault handler that does not perform range checks, allows local users to access kernel memory via an out-of-range offset.
(CVE-2008-0007)

Integer overflow in the hrtimer_start function in kernel/hrtimer.c in the Linux kernel before 2.6.23.10 allows local users to execute arbitrary code or cause a denial of service (panic) via a large relative timeout value. NOTE: some of these details are obtained from third-party information. (CVE-2007-5966)

The shmem_getpage function (mm/shmem.c) in Linux kernel 2.6.11 through 2.6.23 does not properly clear allocated memory in some rare circumstances related to tmpfs, which might allow local users to read sensitive kernel data or cause a denial of service (crash).
(CVE-2007-6417)

The isdn_ioctl function in isdn_common.c in Linux kernel 2.6.23 allows local users to cause a denial of service via a crafted ioctl struct in which iocts is not null terminated, which triggers a buffer overflow.
(CVE-2007-6151)

The do_coredump function in fs/exec.c in Linux kernel 2.4.x and 2.6.x up to 2.6.24-rc3, and possibly other versions, does not change the UID of a core dump file if it exists before a root process creates a core dump in the same location, which might allow local users to obtain sensitive information. (CVE-2007-6206)

Buffer overflow in the isdn_net_setcfg function in isdn_net.c in Linux kernel 2.6.23 allows local users to have an unknown impact via a crafted argument to the isdn_ioctl function. (CVE-2007-6063)

The wait_task_stopped function in the Linux kernel before 2.6.23.8 checks a TASK_TRACED bit instead of an exit_state value, which allows local users to cause a denial of service (machine crash) via unspecified vectors. NOTE: some of these details are obtained from third-party information. (CVE-2007-5500)

The minix filesystem code in Linux kernel 2.6.x before 2.6.24, including 2.6.18, allows local users to cause a denial of service (hang) via a malformed minix file stream that triggers an infinite loop in the minix_bmap function. NOTE: this issue might be due to an integer overflow or signedness error. (CVE-2006-6058)

To update your kernel, please follow the directions located at :

http://www.mandriva.com/en/security/kernelupdate

Updated kernel packages that fix a number of security issues are now available for Red Hat Enterprise Linux 2.1 running on 32-bit architectures.

This update has been rated as having important security impact by the Red Hat Security Response Team.

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

These updated packages fix the following security issues :

* a flaw was found in the IPv4 forwarding base. This could allow a local, unprivileged user to cause a denial of service. (CVE-2007-2172, Important)

* a flaw was found in the handling of process death signals. This allowed a local, unprivileged user to send arbitrary signals to the suid-process executed by that user. Successful exploitation of this flaw depends on the structure of the suid-program and its signal handling. (CVE-2007-3848, Important)

* when accessing kernel memory locations, certain Linux kernel drivers registering a fault handler did not perform required range checks. A local, unprivileged user could use this flaw to gain read or write access to arbitrary kernel memory, or possibly cause a denial of service. (CVE-2008-0007, Important)

* a possible kernel memory leak was found in the Linux kernel Simple Internet Transition (SIT) INET6 implementation. This could allow a local, unprivileged user to cause a denial of service. (CVE-2008-2136, Important)

* missing capability checks were found in the SBNI WAN driver which could allow a local, unprivileged user to bypass intended capability restrictions. (CVE-2008-3525, Important)

* a flaw was found in the way files were written using truncate() or ftruncate(). This could allow a local, unprivileged user to acquire the privileges of a different group and obtain access to sensitive information. (CVE-2008-4210, Important)

* a race condition in the mincore system core allowed a local, unprivileged user to cause a denial of service. (CVE-2006-4814, Moderate)

* a flaw was found in the aacraid SCSI driver. This allowed a local, unprivileged user to make ioctl calls to the driver which should otherwise be restricted to privileged users. (CVE-2007-4308, Moderate)

* two buffer overflow flaws were found in the Integrated Services Digital Network (ISDN) subsystem. A local, unprivileged user could use these flaws to cause a denial of service. (CVE-2007-6063, CVE-2007-6151, Moderate)

* a flaw was found in the way core dump files were created. If a local, unprivileged user could make a root-owned process dump a core file into a user-writable directory, the user could gain read access to that core file, potentially compromising sensitive information.
(CVE-2007-6206, Moderate)

* a deficiency was found in the Linux kernel virtual file system (VFS) implementation. This could allow a local, unprivileged user to attempt file creation within deleted directories, possibly causing a denial of service. (CVE-2008-3275, Moderate)

All users of Red Hat Enterprise Linux 2.1 on 32-bit architectures should upgrade to these updated packages which address these vulnerabilities. For this update to take effect, the system must be rebooted.

The remote MiracleLinux 3 host has packages installed that are affected by multiple vulnerabilities as referenced in the AXSA:2008-150:05 advisory.

    The kernel package contains the Linux kernel (vmlinuz), the core of any Linux operating system.  The     kernel handles the basic functions of the operating system:  memory allocation, process allocation, device     input and output, etc.
    - [cpufreq] : coordinate to keep abi compatibility with rhel51 (Patch104214)     [Bug 4145]
    - revert : CVE-2007-4571 : Convert snd-page-alloc proc file to use seq_file for     alsa (Patch200105) [Bug 4145]
    - [sky2] : Disable checksum on Yukon2-XL to prevent an annoying error message     caused by the chip glitch (Patch102620) [Bug 4898]
    - [x86_64] replace : extend MCE banks support for Dunnington, Nehalem     (Patch108110 -> Patch108111) [Bug 4793]
    - [scsi] replace : megaraid_sas: wait for cmd_status to change (Patch103130)     [Bug 4543]
    - [nfs] sunrpc: fix hang due to eventd deadlock (Patch108090) [Bug 4703]
    - [nfs] sunrpc: fix a race in rpciod_down (Patch108091) [Bug 4703]
    - [x86_64] Switching to vsyscall64 causes oops (Jeff Burke) (Patch108100)     [Bug 4740]
    - [x86_64] Remove 6 bank limitation in 64 bit MCE reporting code (Patch108110)     [Bug 4457]
    - [scsi] megaraid_sas: wait for cmd_status to change (Patch103130) [Bug 4543]
    - [scsi] megaraid_sas: many illegal interrupts appear (Patch103131) [Bug 4779]
    - [cpufreq] Add check for dmi_data in powernow_k8 driver     (Patch104211 Patch104213) [Bug 4604]
    - [MAZE] Update MAZE to replace Patch file (Patch300002) [Bug 4774]
    - [cpufreq] revert: Hot fix about cpufreq (Patch104211) [Bug 4604]
    - [cxgb3] revert: Merge cxgb3 driver version 1.0.129a. Although TOE can work with     CONFIG_TCP_OFFLOAD, we disable by default. (Patch103090) [Bug 4145]
    - [net] ipv6: Drop packets for loopback address from outside of the box     (Patch108086) [Bug 4546]
    - [scsi] lpfc: Update version from 8.1.10.9 to 8.2.0.22 with bug fix     (Patch102100 - Patch102104) [Bug 4462]
    - [cpufreq] Hot fix about cpufreq (Patch104200 - Patch104211) [Bug 3958]
    - [cpufreq] Hot fix about cpufreq (Patch104212) [Bug 4531]
    - [x86] Correct cpu cache info for Intel Tolapai (Patch108084) [Bug 4475]
    - [x86] Support ICH10 (Patch108085) [Bug 4527]
    - [misc] Fix a deadlock about smp_send_stop when panic (Patch200100) [Bug 4205]
    - [misc] Fix a deadlock on on_each_cpu (Patch200101) [Bug 4345]
    - [x86] report_lost_ticks fix up (Patch100120) [Bug 4161]
    - [e1000e] Revert 7.6.15.5-NAPI and update to 0.2.9.5 (Patch103113 Patch103114)     [Bug 4247]
    - [net] (IPV6) Accept routing header only when hdr->segments_left is zero     (Patch108080) [Bug 4377]
    - [net] (IPV6) Fix BUG of ndisc_send_redirect()     backport from 2.6.20 (Patch108081) [Bug 4379]
    - [net] (IPV6) Fix ICMPv6 redirect handling with target multicast address     backport from 2.6.23 (Patch108082) [Bug 4379]
    - [net] (IPV6) Defer IPv6 device initialization until a valid qdisc is specified     (Patch108083) [Bug 4380]
    - [ioat] Update ioat device ids (Patch108032) [Bug 4289]
    - CVE-2007-4571 : Convert snd-page-alloc proc file to use seq_file for alsa     [Patch200105]
    - CVE-2007-4997 : off-by-two integer underflow for ieee80211 [Patch200106]
    - CVE-2007-5494 : missing dput in do_lookup error leaks dentries for fs     [Patch200107]
    - [fs] sysfs: store inode nrs in s_ino (Eric Sandeen ) [245777] {CVE-2007-3104}     [Patch200108]
    - Delete [Patch103007], which been instead by [Patch200108]
    - [fs] sysfs: fix condition check in sysfs_drop_dentry() (Eric Sandeen )     [245777] {CVE-2007-3104} [Patch200109]
    - [fs] sysfs: fix race condition around sd->s_dentry (Eric Sandeen ) [245777]     {CVE-2007-3104} [Patch200110]
    - [fs] core dump file ownership (Don Howard ) [396991] {CVE-2007-6206}     [Patch200111]
    - [fs] corruption by unprivileged user in directories (Vitaly Mayatskikh )     [428796] {CVE-2008-0001} [Patch200112]
    - CVE-2008-0600 : kernel vmsplice_to_pipe flaw [Patch200115]
    - CVE-2006-6921 : Denial of service with wedged processes [Patch200116]
    - CVE-2007-6063 : fix possible isdn_net buffer overflows [Patch200118]
    - CVE-2007-6694 : fix possible strncmp NULL pointer usage [Patch200119]
    - CVE-2007-5938 : fix NULL dereference in iwl driver [Patch200120]
    - [KAHO] Delete Debug option (Patch300004) [Bug 4290]
    - [KAHO] Fix the invalid state change (Patch300004) [Bug 4291]
    - [KAHO] Fix the deadlock in consecutive memory allocation (Patch300004) [Bug 4292]
    - [KAHO] Fix typo in error message (Patch300004) [Bug 4293]
    - [MAZE] Update MAZE to replace Patch file (Patch300002) [Bug 4309]
    - [e1000e] Fix network link down when repeating to reboot (Patch103112)     [Bug 4184]
    - [MAZE] Update MAZE to replace Patch file (Patch300002) [Bug 4181]
    - [E7221] Add E7221 pci ids to kernel (Patch108040) [Bug 3909]
    - [IA64] forbid ptrace changes psr.ri to 3 (Patch108050) [Bug 3576]
    - [igb] Backport patch for 2.6.18 (Patch103081) [Bug 4129]
    - [stex] Update patch of 3.06.0205.00 (Patch102060) [Bug 3858]
    - [ocfs2] Update version number to 1.2.8 (Patch103100) [Bug 4073]
    - [e1000e] Fix unknown symbol e1000_intr_msi (Patch103110) [Bug 4105]
    - [e1000e] Fix ethtool gets a wrong driver name (Patch103111) [Bug 4144]
    - [IOAPIC] Fix IOAPIC uniqe ID checking (Patch108060) [Bug 4057]
    - [cxgb3] Merge cxgb3 driver version 1.0.129a. Although TOE can work with     CONFIG_TCP_OFFLOAD, we disable by default. (Patch103090) [Bug 3928]
    - [x86 oprofile] Add support for the latest Intel processors to Oprofile     [Patch108001 Bug 3948]
    - [ixgbe] Add support ixgbe-1.3.16.1 [Patch103071 Patch103072 Bug 3950]
    - [dca] Add a new module dca which depend by ioat && ixgbe [Patch103070]
    - [igb] Update igb driver to version 1.2.22 (Patch103080) [Bug 3954]
    - [ioat] Update ioat driver to version 1.9 and support unisys     (Patch108030, Patch108030) [Bug 3956]
    - [ACPICA] Fix acpi-cpufreq boot crash due to _PSD return-by-reference     [Patch108000 Bug 3957]
    - [e1000e] Update e1000e to v7.6.15 with replace Patch files     (Patch103042, Patch103043, Patch103044, Patch103045, Patch103047,     Patch103048, Patch103049) [Bug 4055]
    - [comptemp] Add support coretemp driver for hwmon using a snapshot of     torvalds/linux-2.6.git (Patch108010) [Bug 4071]
    - [it87] Add IT8716F/IT8718F/IT8726F support (Patch108020) [Bug 4072]
    - [ocfs2] Update ocfs2 driver to version 1.2.8-2 (Patch103051) [Bug 4073]
    - [PCI IDS] Update pci_ids     HT1000 [Patch104001 ~ Patch104002]     MCP67/73/77 [Patch104003 ~ Patch104006]     VIA VT8237S [Patch104007]     INTEL TOLAPAI [Patch104008 ~ Patch104009]     BCM82XX [Patch104010 ~ Patch104014]
    - [KAHO] Add KAHO runtime binary patch function (Patch300001, bug#4019)
    - [MAZE] Add MAZE Monitoring function (Patch300002, bug#4025)
    - [SCTP] Upgrade of based codes to 2.6.21 of stock kernel     and bug fix for AXS3SP1 (Patch300003, bug#4027)
    - Build Base Kernel For Asianux
    - Merge patches from AX20 SP2
    - [Patches 100100 100101 100200 100201 102030 102031 102040 102050 103000
    - 103002 103060]
    - Merge patches from AXS3
    - [Patches 100102 100104 100105 100110 100111 100112 100114 100115 100300
    - 102011 102012 102014 102015 102020 102021 102022 102023 102024 102051
    - 102052 102500 102501 102600 102601 103004 103005 103006 103007 103010
    - 103011 103012 103013 103014 103015 103018 103019 103020 103021 103022
    - 103023 103031 103032 103034 103039 103040 103041 103042 103043 103044
    - 103045 103046 103047 103048 103049 103050 103052 103053 103056 103057
    - 103059 103061 103062 200000 200001 200002 200003 200004 200005 200006
    - 200007 200011]
    - [GFS2] handle multiple demote requests
    - [scsi] megaraid_sas: kabi fix for /proc entries
    - [sound] allow creation of null parent devices
    - [net] iwlwifi: avoid BUG_ON in tx cmd queue processing
    - [GFS2] Get super block a different way
    - [GFS2] dlm: schedule during recovery loops
    - Revert: [pata] IDE (siimage) panics when DRAC4 reset
    - Revert: [net] bonding: convert timers to workqueues
    - [pata] enable IDE (siimage) DRAC4
    - [GFS2] gfs2_writepage(s) workaround
    - [scsi] aacraid: Missing ioctl() permission checks  {CVE-2007-4308}
    - [GFS2] Solve journaling/{release|invalidate}page issues
    - [x86_64] syscall vulnerability CVE-2007-4573}
    - [GFS2] Fix i_cache stale entry
    - [GFS2] deadlock running revolver load with lock_nolock

Tenable has extracted the preceding description block directly from the MiracleLinux security advisory.

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

These updated kernel packages fix the following security issues :

A flaw was found in the virtual filesystem (VFS). A local unprivileged user could truncate directories to which they had write permission;
this could render the contents of the directory inaccessible.
(CVE-2008-0001, Important)

A flaw was found in the implementation of ptrace. A local unprivileged user could trigger this flaw and possibly cause a denial of service (system hang). (CVE-2007-5500, Important)

A flaw was found in the way the Red Hat Enterprise Linux 4 kernel handled page faults when a CPU used the NUMA method for accessing memory on Itanium architectures. A local unprivileged user could trigger this flaw and cause a denial of service (system panic).
(CVE-2007-4130, Important)

A possible NULL pointer dereference was found in the chrp_show_cpuinfo function when using the PowerPC architecture. This may have allowed a local unprivileged user to cause a denial of service (crash).
(CVE-2007-6694, Moderate)

A flaw was found in the way core dump files were created. If a local user can get a root-owned process to dump a core file into a directory, which the user has write access to, they could gain read access to that core file. This could potentially grant unauthorized access to sensitive information. (CVE-2007-6206, Moderate)

Two buffer overflow flaws were found in the Linux kernel ISDN subsystem. A local unprivileged user could use these flaws to cause a denial of service. (CVE-2007-6063, CVE-2007-6151, Moderate)

As well, these updated packages fix the following bug :

  - when moving volumes that contain multiple segments, and     a mirror segment is not the first in the mapping table,     running the 'pvmove /dev/[device] /dev/[device]' command     caused a kernel panic. A 'kernel: Unable to handle     kernel paging request at virtual address [address]'     error was logged by syslog.

Updated kernel packages that resolve several security issues and fix various bugs are now available for Red Hat Enterprise Linux 3.

This update has been rated as having important security impact by the Red Hat Security Response Team.

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

This update addresses the following security issues :

* Tavis Ormandy discovered a deficiency in the Linux kernel 32-bit and 64-bit emulation. This could allow a local, unprivileged user to prepare and run a specially crafted binary which would use this deficiency to leak uninitialized and potentially sensitive data.
(CVE-2008-0598, Important)

* a possible kernel memory leak was found in the Linux kernel Simple Internet Transition (SIT) INET6 implementation. This could allow a local, unprivileged user to cause a denial of service. (CVE-2008-2136, Important)

* missing capability checks were found in the SBNI WAN driver which could allow a local user to bypass intended capability restrictions.
(CVE-2008-3525, Important)

* the do_truncate() and generic_file_splice_write() functions did not clear the setuid and setgid bits. This could allow a local, unprivileged user to obtain access to privileged information.
(CVE-2008-4210, Important)

* a buffer overflow flaw was found in Integrated Services Digital Network (ISDN) subsystem. A local, unprivileged user could use this flaw to cause a denial of service. (CVE-2007-6063, Moderate)

* multiple NULL pointer dereferences were found in various Linux kernel network drivers. These drivers were missing checks for terminal validity, which could allow privilege escalation. (CVE-2008-2812, Moderate)

* a deficiency was found in the Linux kernel virtual filesystem (VFS) implementation. This could allow a local, unprivileged user to attempt file creation within deleted directories, possibly causing a denial of service. (CVE-2008-3275, Moderate)

This update also fixes the following bugs :

* the incorrect kunmap function was used in nfs_xdr_readlinkres.
kunmap() was used where kunmap_atomic() should have been. As a consequence, if an NFSv2 or NFSv3 server exported a volume containing a symlink which included a path equal to or longer than the local system's PATH_MAX, accessing the link caused a kernel oops. This has been corrected in this update.

* mptctl_gettargetinfo did not check if pIoc3 was NULL before using it as a pointer. This caused a kernel panic in mptctl_gettargetinfo in some circumstances. A check has been added which prevents this.

* lost tick compensation code in the timer interrupt routine triggered without apparent cause. When running as a fully-virtualized client, this spurious triggering caused the 64-bit version of Red Hat Enterprise Linux 3 to present highly inaccurate times. With this update the lost tick compensation code is turned off when the operating system is running as a fully-virtualized client under Xen or VMware(r).

All Red Hat Enterprise Linux 3 users should install this updated kernel which addresses these vulnerabilities and fixes these bugs.

This update addresses the following security issues :

  - Tavis Ormandy discovered a deficiency in the Linux     kernel 32-bit and 64-bit emulation. This could allow a     local, unprivileged user to prepare and run a specially     crafted binary which would use this deficiency to leak     uninitialized and potentially sensitive data.
    (CVE-2008-0598, Important)

  - a possible kernel memory leak was found in the Linux     kernel Simple Internet Transition (SIT) INET6     implementation. This could allow a local, unprivileged     user to cause a denial of service. (CVE-2008-2136,     Important)

  - missing capability checks were found in the SBNI WAN     driver which could allow a local user to bypass intended     capability restrictions. (CVE-2008-3525, Important)

  - the do_truncate() and generic_file_splice_write()     functions did not clear the setuid and setgid bits. This     could allow a local, unprivileged user to obtain access     to privileged information. (CVE-2008-4210, Important)

  - a buffer overflow flaw was found in Integrated Services     Digital Network (ISDN) subsystem. A local, unprivileged     user could use this flaw to cause a denial of service.
    (CVE-2007-6063, Moderate)

  - multiple NULL pointer dereferences were found in various     Linux kernel network drivers. These drivers were missing     checks for terminal validity, which could allow     privilege escalation. (CVE-2008-2812, Moderate)

  - a deficiency was found in the Linux kernel virtual     filesystem (VFS) implementation. This could allow a     local, unprivileged user to attempt file creation within     deleted directories, possibly causing a denial of     service. (CVE-2008-3275, Moderate)

This update also fixes the following bugs :

  - the incorrect kunmap function was used in     nfs_xdr_readlinkres. kunmap() was used where     kunmap_atomic() should have been. As a consequence, if     an NFSv2 or NFSv3 server exported a volume containing a     symlink which included a path equal to or longer than     the local system's PATH_MAX, accessing the link caused a     kernel oops. This has been corrected in this update.

  - mptctl_gettargetinfo did not check if pIoc3 was NULL     before using it as a pointer. This caused a kernel panic     in mptctl_gettargetinfo in some circumstances. A check     has been added which prevents this.

  - lost tick compensation code in the timer interrupt     routine triggered without apparent cause. When running     as a fully-virtualized client, this spurious triggering     caused the 64-bit version of Red Hat Enterprise Linux 3     to present highly inaccurate times. With this update the     lost tick compensation code is turned off when the     operating system is running as a fully-virtualized     client under Xen or VMware&reg;.

From Red Hat Security Advisory 2008:0973 :

Updated kernel packages that resolve several security issues and fix various bugs are now available for Red Hat Enterprise Linux 3.

This update has been rated as having important security impact by the Red Hat Security Response Team.

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

This update addresses the following security issues :

* Tavis Ormandy discovered a deficiency in the Linux kernel 32-bit and 64-bit emulation. This could allow a local, unprivileged user to prepare and run a specially crafted binary which would use this deficiency to leak uninitialized and potentially sensitive data.
(CVE-2008-0598, Important)

* a possible kernel memory leak was found in the Linux kernel Simple Internet Transition (SIT) INET6 implementation. This could allow a local, unprivileged user to cause a denial of service. (CVE-2008-2136, Important)

* missing capability checks were found in the SBNI WAN driver which could allow a local user to bypass intended capability restrictions.
(CVE-2008-3525, Important)

* the do_truncate() and generic_file_splice_write() functions did not clear the setuid and setgid bits. This could allow a local, unprivileged user to obtain access to privileged information.
(CVE-2008-4210, Important)

* a buffer overflow flaw was found in Integrated Services Digital Network (ISDN) subsystem. A local, unprivileged user could use this flaw to cause a denial of service. (CVE-2007-6063, Moderate)

* multiple NULL pointer dereferences were found in various Linux kernel network drivers. These drivers were missing checks for terminal validity, which could allow privilege escalation. (CVE-2008-2812, Moderate)

* a deficiency was found in the Linux kernel virtual filesystem (VFS) implementation. This could allow a local, unprivileged user to attempt file creation within deleted directories, possibly causing a denial of service. (CVE-2008-3275, Moderate)

This update also fixes the following bugs :

* the incorrect kunmap function was used in nfs_xdr_readlinkres.
kunmap() was used where kunmap_atomic() should have been. As a consequence, if an NFSv2 or NFSv3 server exported a volume containing a symlink which included a path equal to or longer than the local system's PATH_MAX, accessing the link caused a kernel oops. This has been corrected in this update.

* mptctl_gettargetinfo did not check if pIoc3 was NULL before using it as a pointer. This caused a kernel panic in mptctl_gettargetinfo in some circumstances. A check has been added which prevents this.

* lost tick compensation code in the timer interrupt routine triggered without apparent cause. When running as a fully-virtualized client, this spurious triggering caused the 64-bit version of Red Hat Enterprise Linux 3 to present highly inaccurate times. With this update the lost tick compensation code is turned off when the operating system is running as a fully-virtualized client under Xen or VMware(r).

All Red Hat Enterprise Linux 3 users should install this updated kernel which addresses these vulnerabilities and fixes these bugs.

These updated packages fix the following security issues :

  - a flaw in the hypervisor for hosts running on Itanium     architectures allowed an Intel VTi domain to read     arbitrary physical memory from other Intel VTi domains,     which could make information available to unauthorized     users. (CVE-2007-6207, Important)

  - two buffer overflow flaws were found in ISDN subsystem.
    A local unprivileged user could use these flaws to cause     a denial of service. (CVE-2007-5938: Important,     CVE-2007-6063: Moderate)

  - a possible NULL pointer dereference was found in the     subsystem used for showing CPU information, as used by     CHRP systems on PowerPC architectures. This may have     allowed a local unprivileged user to cause a denial of     service (crash). (CVE-2007-6694, Moderate)

  - a flaw was found in the handling of zombie processes. A     local user could create processes that would not be     properly reaped, possibly causing a denial of service.
    (CVE-2006-6921, Moderate)

As well, these updated packages fix the following bugs :

  - a bug was found in the Linux kernel audit subsystem.
    When the audit daemon was setup to log the execve system     call with a large number of arguments, the kernel could     run out of memory, causing a kernel panic.

  - on IBM System z architectures, using the IBM Hardware     Management Console to toggle IBM FICON channel path ids     (CHPID) caused a file ID miscompare, possibly causing     data corruption.

  - when running the IA-32 Execution Layer (IA-32EL) or a     Java VM on Itanium architectures, a bug in the address     translation in the hypervisor caused the wrong address     to be registered, causing Dom0 to hang.

  - on Itanium architectures, frequent Corrected Platform     Error errors may have caused the hypervisor to hang.

  - when enabling a CPU without hot plug support, routines     for checking the presence of the CPU were missing. The     CPU tried to access its own resources, causing a kernel     panic.

  - after updating to kernel-2.6.18-53.el5, a bug in the     CCISS driver caused the HP Array Configuration Utility     CLI to become unstable, possibly causing a system hang,     or a kernel panic.

  - a bug in NFS directory caching could have caused     different hosts to have different views of NFS     directories.

  - on Itanium architectures, the Corrected Machine Check     Interrupt masked hot-added CPUs as disabled.

  - when running Oracle database software on the Intel 64     and AMD64 architectures, if an SGA larger than 4GB was     created, and had hugepages allocated to it, the     hugepages were not freed after database shutdown.

  - in a clustered environment, when two or more NFS clients     had the same logical volume mounted, and one of them     modified a file on the volume, NULL characters may have     been inserted, possibly causing data corruption.

These updated packages resolve several severe issues in the lpfc driver :

  - a system hang after LUN discovery.

  - a general fault protection, a NULL pointer dereference,     or slab corruption could occur while running a debug on     the kernel.

  - the inability to handle kernel paging requests in     'lpfc_get_scsi_buf'.

  - erroneous structure references caused certain FC     discovery routines to reference and change     'lpfc_nodelist' structures, even after they were freed.

  - the lpfc driver failed to interpret certain fields     correctly, causing tape backup software to fail. Tape     drives reported 'Illegal Request'.

  - the lpfc driver did not clear structures correctly,     resulting in SCSI I/Os being rejected by targets, and     causing errors.

The remote Oracle Linux 5 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2008-0154 advisory.

    [2.6.18-53.1.14.0.1.el5]
     - [NET] Add entropy support to e1000 and bnx2 (John Sobecki) [orabug      6045759]
     - [NET] Fix msi issue with kexec/kdump (Michael Chan) [orabug 6219364]
     - [MM] Fix alloc_pages_node() static `nid' race made kernel crash (Joe      Jin) [orabug 6187457]
     - [splice] Fix bad unlock_page() in error case  (Jens Axboe) [orabug      6263574]
     - [dio] fix error-path crashes (Linus Torvalds) [orabug 6242289]

     [2.6.18-53.1.14.el5]
     - merge from 2.6.18-53.1.13 to 2.6.18-53.1.12
     - [nfs] potential file corruption issue when writing (Jeff Layton ) [432078]
     - [ppc] chrp: fix possible strncmp NULL pointer usage (Vitaly Mayatskikh      ) [396821]
     - [isdn] i4l: fix memory overruns (Vitaly Mayatskikh ) [425171]
     - [isdn] fix possible isdn_net buffer overflows (Aristeu Rozanski )      [392151] {CVE-2007-6063}
     - [mm] hugepages: leak due to pagetable page sharing (Larry Woodman )      [431522]
     - [net] NULL dereference in iwl driver (Vitaly Mayatskikh ) [401421]      {CVE-2007-5938}
     - [misc] Denial of service with wedged processes (Jerome Marchand ) [221403]
     - [xen] ia64: hvm guest memory range checking (Jarod Wilson ) [408701]

Tenable has extracted the preceding description block directly from the Oracle 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.

ID	名称	产品	系列	发布时间	最近更新时间	严重程度
29756	Debian DSA-1436-1 : linux-2.6 - several vulnerabilities	Nessus	Debian Local Security Checks	2007/12/24	2021/1/4	high
30183	Ubuntu 6.10 / 7.04 / 7.10 : linux-source-2.6.17/20/22 vulnerabilities (USN-574-1)	Nessus	Ubuntu Local Security Checks	2008/2/5	2021/1/19	high
36852	Mandriva Linux Security Advisory : kernel (MDVSA-2008:112)	Nessus	Mandriva Local Security Checks	2009/4/23	2021/1/6	high
35323	RHEL 2.1 : kernel (RHSA-2009:0001)	Nessus	Red Hat Local Security Checks	2009/1/9	2021/1/14	high
284402	MiracleLinux 3 : kernel-2.6.18-53.11AXS3 (AXSA:2008-150:05)	Nessus	Miracle Linux Local Security Checks	2026/1/14	2026/2/12	high
60354	Scientific Linux Security Update : kernel on SL4.x i386/x86_64	Nessus	Scientific Linux Local Security Checks	2012/8/1	2021/1/14	high
35190	RHEL 3 : kernel (RHSA-2008:0973)	Nessus	Red Hat Local Security Checks	2008/12/17	2021/1/14	high
60507	Scientific Linux Security Update : kernel on SL3.x i386/x86_64	Nessus	Scientific Linux Local Security Checks	2012/8/1	2021/1/14	high
67763	Oracle Linux 3 : kernel (ELSA-2008-0973)	Nessus	Oracle Linux Local Security Checks	2013/7/12	2021/8/24	high
60370	Scientific Linux Security Update : kernel on SL5.x i386/x86_64	Nessus	Scientific Linux Local Security Checks	2012/8/1	2021/1/14	high
67659	Oracle Linux 5 : Important: / kernel (ELSA-2008-0154)	Nessus	Oracle Linux Local Security Checks	2013/7/12	2026/2/9	high

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