Updated kernel-rt packages that fix multiple security issues and various bugs are now available for Red Hat Enterprise MRG 2.0.

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.

Security fixes :

* A flaw in the SCTP and DCCP implementations could allow a remote attacker to cause a denial of service. (CVE-2010-4526, CVE-2011-1770, Important)

* Flaws in the Management Module Support for Message Passing Technology (MPT) based controllers could allow a local, unprivileged user to cause a denial of service, an information leak, or escalate their privileges. (CVE-2011-1494, CVE-2011-1495, Important)

* Flaws in the AGPGART driver, and a flaw in agp_allocate_memory(), could allow a local user to cause a denial of service or escalate their privileges. (CVE-2011-1745, CVE-2011-2022, CVE-2011-1746, Important)

* A flaw in the client-side NLM implementation could allow a local, unprivileged user to cause a denial of service. (CVE-2011-2491, Important)

* A flaw in the Bluetooth implementation could allow a remote attacker to cause a denial of service or escalate their privileges.
(CVE-2011-2497, Important)

* Flaws in the netlink-based wireless configuration interface could allow a local user, who has the CAP_NET_ADMIN capability, to cause a denial of service or escalate their privileges on systems that have an active wireless interface. (CVE-2011-2517, Important)

* The maximum file offset handling for ext4 file systems could allow a local, unprivileged user to cause a denial of service. (CVE-2011-2695, Important)

* A local, unprivileged user could allocate large amounts of memory not visible to the OOM killer, causing a denial of service.
(CVE-2010-4243, Moderate)

* The proc file system could allow a local, unprivileged user to obtain sensitive information or possibly cause integrity issues.
(CVE-2011-1020, Moderate)

* A local, privileged user could possibly write arbitrary kernel memory via /sys/kernel/debug/acpi/custom_method. (CVE-2011-1021, Moderate)

* Inconsistency in the methods for allocating and freeing NFSv4 ACL data; CVE-2010-4250 fix caused a regression; a flaw in next_pidmap() and inet_diag_bc_audit(); flaws in the CAN implementation; a race condition in the memory merging support; a flaw in the taskstats subsystem; and the way mapping expansions were handled could allow a local, unprivileged user to cause a denial of service. (CVE-2011-1090, CVE-2011-1479, CVE-2011-1593, CVE-2011-2213, CVE-2011-1598, CVE-2011-1748, CVE-2011-2183, CVE-2011-2484, CVE-2011-2496, Moderate)

* A flaw in GRO could result in a denial of service when a malformed VLAN frame is received. (CVE-2011-1478, Moderate)

* napi_reuse_skb() could be called on VLAN packets allowing an attacker on the local network to possibly trigger a denial of service.
(CVE-2011-1576, Moderate)

* A denial of service could occur if packets were received while the ipip or ip_gre module was being loaded. (CVE-2011-1767, CVE-2011-1768, Moderate)

* Information leaks. (CVE-2011-1160, CVE-2011-2492, CVE-2011-2495, Low)

* Flaws in the EFI GUID Partition Table implementation could allow a local attacker to cause a denial of service. (CVE-2011-1577, CVE-2011-1776, Low)

* While a user has a CIFS share mounted that required successful authentication, a local, unprivileged user could mount that share without knowing the correct password if mount.cifs was setuid root.
(CVE-2011-1585, Low)

Red Hat would like to thank Dan Rosenberg for reporting CVE-2011-1770, CVE-2011-1494, CVE-2011-1495, CVE-2011-2497, and CVE-2011-2213;
Vasiliy Kulikov of Openwall for reporting CVE-2011-1745, CVE-2011-2022, CVE-2011-1746, CVE-2011-2484, and CVE-2011-2495; Vasily Averin for reporting CVE-2011-2491; Brad Spengler for reporting CVE-2010-4243; Kees Cook for reporting CVE-2011-1020; Robert Swiecki for reporting CVE-2011-1593 and CVE-2011-2496; Oliver Hartkopp for reporting CVE-2011-1748; Andrea Righi for reporting CVE-2011-2183;
Ryan Sweat for reporting CVE-2011-1478 and CVE-2011-1576; Peter Huewe for reporting CVE-2011-1160; Marek Kroemeke and Filip Palian for reporting CVE-2011-2492; and Timo Warns for reporting CVE-2011-1577 and CVE-2011-1776.

Updated kernel packages that fix multiple security issues and several bugs are now available for Red Hat Enterprise Linux 5.

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 :

* An integer overflow flaw in ib_uverbs_poll_cq() could allow a local, unprivileged user to cause a denial of service or escalate their privileges. (CVE-2010-4649, Important)

* A race condition in the way new InfiniBand connections were set up could allow a remote user to cause a denial of service.
(CVE-2011-0695, Important)

* A flaw in the Stream Control Transmission Protocol (SCTP) implementation could allow a remote attacker to cause a denial of service if the sysctl 'net.sctp.addip_enable' variable was turned on (it is off by default). (CVE-2011-1573, Important)

* Flaws in the AGPGART driver implementation when handling certain IOCTL commands could allow a local, unprivileged user to cause a denial of service or escalate their privileges. (CVE-2011-1745, CVE-2011-2022, Important)

* An integer overflow flaw in agp_allocate_memory() could allow a local, unprivileged user to cause a denial of service or escalate their privileges. (CVE-2011-1746, Important)

* A flaw allowed napi_reuse_skb() to be called on VLAN (virtual LAN) packets. An attacker on the local network could trigger this flaw by sending specially crafted packets to a target system, possibly causing a denial of service. (CVE-2011-1576, Moderate)

* An integer signedness error in next_pidmap() could allow a local, unprivileged user to cause a denial of service. (CVE-2011-1593, Moderate)

* A flaw in the way the Xen hypervisor implementation handled CPUID instruction emulation during virtual machine exits could allow an unprivileged guest user to crash a guest. This only affects systems that have an Intel x86 processor with the Intel VT-x extension enabled. (CVE-2011-1936, Moderate)

* A flaw in inet_diag_bc_audit() could allow a local, unprivileged user to cause a denial of service (infinite loop). (CVE-2011-2213, Moderate)

* A missing initialization flaw in the XFS file system implementation could lead to an information leak. (CVE-2011-0711, Low)

* A flaw in ib_uverbs_poll_cq() could allow a local, unprivileged user to cause an information leak. (CVE-2011-1044, Low)

* A missing validation check was found in the signals implementation.
A local, unprivileged user could use this flaw to send signals via the sigqueueinfo system call, with the si_code set to SI_TKILL and with spoofed process and user IDs, to other processes. Note: This flaw does not allow existing permission checks to be bypassed; signals can only be sent if your privileges allow you to already do so. (CVE-2011-1182, Low)

* A heap overflow flaw in the EFI GUID Partition Table (GPT) implementation could allow a local attacker to cause a denial of service by mounting a disk containing specially crafted partition tables. (CVE-2011-1776, Low)

* Structure padding in two structures in the Bluetooth implementation was not initialized properly before being copied to user-space, possibly allowing local, unprivileged users to leak kernel stack memory to user-space. (CVE-2011-2492, Low)

Red Hat would like to thank Jens Kuehnel for reporting CVE-2011-0695;
Vasiliy Kulikov for reporting CVE-2011-1745, CVE-2011-2022, and CVE-2011-1746; Ryan Sweat for reporting CVE-2011-1576; Robert Swiecki for reporting CVE-2011-1593; Dan Rosenberg for reporting CVE-2011-2213 and CVE-2011-0711; Julien Tinnes of the Google Security Team for reporting CVE-2011-1182; Timo Warns for reporting CVE-2011-1776; and Marek Kroemeke and Filip Palian for reporting CVE-2011-2492.

Bug fix documentation will be available shortly from the Technical Notes document linked to in the References.

Users should upgrade to these updated packages, which contain backported patches to correct these issues, and fix the bugs noted in the Technical Notes. The system must be rebooted for this update to take effect.

Ryan Sweat discovered that the kernel incorrectly handled certain VLAN packets. On some systems, a remote attacker could send specially crafted traffic to crash the system, leading to a denial of service.
(CVE-2011-1576)

Timo Warns discovered that the EFI GUID partition table was not correctly parsed. A physically local attacker that could insert mountable devices could exploit this to crash the system or possibly gain root privileges. (CVE-2011-1776)

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)

Dan Rosenberg discovered that the IPv4 diagnostic routines did not correctly validate certain requests. A local attacker could exploit this to consume CPU resources, leading to a denial of service.
(CVE-2011-2213)

Dan Rosenberg discovered that the Bluetooth stack incorrectly handled certain L2CAP requests. If a system was using Bluetooth, a remote attacker could send specially crafted traffic to crash the system or gain root privileges. (CVE-2011-2497)

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)

Mauro Carvalho Chehab discovered that the si4713 radio driver did not correctly check the length of memory copies. If this hardware was available, a local attacker could exploit this to crash the system or gain root privileges. (CVE-2011-2700)

Herbert Xu discovered that certain fields were incorrectly handled when Generic Receive Offload (CVE-2011-2723)

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)

Time Warns discovered that long symlinks were incorrectly handled on Be filesystems. A local attacker could exploit this with a malformed Be filesystem and crash the system, leading to a denial of service.
(CVE-2011-2928)

Darren Lavender discovered that the CIFS client incorrectly handled certain large values. A remote attacker with a malicious server could exploit this to crash the system or possibly execute arbitrary code as the root user. (CVE-2011-3191)

Gideon Naim discovered a flaw in the Linux kernel's handling VLAN 0 frames. An attacker on the local network could exploit this flaw to cause a denial of service. (CVE-2011-3593).

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.

Ryan Sweat discovered that the kernel incorrectly handled certain VLAN packets. On some systems, a remote attacker could send specially crafted traffic to crash the system, leading to a denial of service.
(CVE-2011-1576)

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 did not enforce access restrictions. A local attacker could exploit this to read certain information, leading to a loss of privacy. (CVE-2011-2494)

Vasiliy Kulikov discovered that /proc/PID/io did not enforce access restrictions. A local attacker could exploit this to read certain information, leading to a loss of privacy. (CVE-2011-2495)

Dan Rosenberg discovered that the Bluetooth stack incorrectly handled certain L2CAP requests. If a system was using Bluetooth, a remote attacker could send specially crafted traffic to crash the system or gain root privileges. (CVE-2011-2497)

It was discovered that the EXT4 filesystem contained multiple off-by-one flaws. A local attacker could exploit this to crash the system, leading to a denial of service. (CVE-2011-2695)

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)

Christian Ohm discovered that the perf command looks for configuration files in the current directory. If a privileged user were tricked into running perf in a directory containing a malicious configuration file, an attacker could run arbitrary commands and possibly gain privileges.
(CVE-2011-2905)

Time Warns discovered that long symlinks were incorrectly handled on Be filesystems. A local attacker could exploit this with a malformed Be filesystem and crash the system, leading to a denial of service.
(CVE-2011-2928)

Dan Kaminsky discovered that the kernel incorrectly handled random sequence number generation. An attacker could use this flaw to possibly predict sequence numbers and inject packets. (CVE-2011-3188)

Darren Lavender discovered that the CIFS client incorrectly handled certain large values. A remote attacker with a malicious server could exploit this to crash the system or possibly execute arbitrary code as the root user. (CVE-2011-3191)

Han-Wen Nienhuys reported a flaw in the FUSE kernel module. A local user who can mount a FUSE file system could cause a denial of service.
(CVE-2011-3353)

Gideon Naim discovered a flaw in the Linux kernel's handling VLAN 0 frames. An attacker on the local network could exploit this flaw to cause a denial of service. (CVE-2011-3593).

Ryan Sweat discovered that the kernel incorrectly handled certain VLAN packets. On some systems, a remote attacker could send specially crafted traffic to crash the system, leading to a denial of service.
(CVE-2011-1576)

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 did not enforce access restrictions. A local attacker could exploit this to read certain information, leading to a loss of privacy. (CVE-2011-2494)

Vasiliy Kulikov discovered that /proc/PID/io did not enforce access restrictions. A local attacker could exploit this to read certain information, leading to a loss of privacy. (CVE-2011-2495)

Dan Rosenberg discovered that the Bluetooth stack incorrectly handled certain L2CAP requests. If a system was using Bluetooth, a remote attacker could send specially crafted traffic to crash the system or gain root privileges. (CVE-2011-2497)

It was discovered that the EXT4 filesystem contained multiple off-by-one flaws. A local attacker could exploit this to crash the system, leading to a denial of service. (CVE-2011-2695)

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)

Christian Ohm discovered that the perf command looks for configuration files in the current directory. If a privileged user were tricked into running perf in a directory containing a malicious configuration file, an attacker could run arbitrary commands and possibly gain privileges.
(CVE-2011-2905)

Time Warns discovered that long symlinks were incorrectly handled on Be filesystems. A local attacker could exploit this with a malformed Be filesystem and crash the system, leading to a denial of service.
(CVE-2011-2928)

Dan Kaminsky discovered that the kernel incorrectly handled random sequence number generation. An attacker could use this flaw to possibly predict sequence numbers and inject packets. (CVE-2011-3188)

Darren Lavender discovered that the CIFS client incorrectly handled certain large values. A remote attacker with a malicious server could exploit this to crash the system or possibly execute arbitrary code as the root user. (CVE-2011-3191)

Han-Wen Nienhuys reported a flaw in the FUSE kernel module. A local user who can mount a FUSE file system could cause a denial of service.
(CVE-2011-3353)

Gideon Naim discovered a flaw in the Linux kernel's handling VLAN 0 frames. An attacker on the local network could exploit this flaw to cause a denial of service. (CVE-2011-3593).

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.

a. ESX third-party update for Service Console kernel      The ESX Service Console Operating System (COS) kernel is updated to    kernel-2.6.18-274.3.1.el5 to fix multiple security issues in the    COS kernel.
     The Common Vulnerabilities and Exposures project (cve.mitre.org) has    assigned the names CVE-2011-0726, CVE-2011-1078, CVE-2011-1079,    CVE-2011-1080, CVE-2011-1093, CVE-2011-1163, CVE-2011-1166,    CVE-2011-1170, CVE-2011-1171, CVE-2011-1172, CVE-2011-1494,    CVE-2011-1495, CVE-2011-1577, CVE-2011-1763, CVE-2010-4649,    CVE-2011-0695, CVE-2011-0711, CVE-2011-1044, CVE-2011-1182,    CVE-2011-1573, CVE-2011-1576, CVE-2011-1593, CVE-2011-1745,    CVE-2011-1746, CVE-2011-1776, CVE-2011-1936, CVE-2011-2022,    CVE-2011-2213, CVE-2011-2492, CVE-2011-1780, CVE-2011-2525,    CVE-2011-2689, CVE-2011-2482, CVE-2011-2491, CVE-2011-2495,    CVE-2011-2517, CVE-2011-2519, CVE-2011-2901 to these issues.
  b. ESX third-party update for Service Console cURL RPM      The ESX Service Console (COS) curl RPM is updated to cURL-7.15.5.9    resolving a security issues.
     The Common Vulnerabilities and Exposures project (cve.mitre.org) has    assigned the name CVE-2011-2192 to this issue.
  c. ESX third-party update for Service Console nspr and nss RPMs      The ESX Service Console (COS) nspr and nss RPMs are updated to    nspr-4.8.8-1.el5_7 and nss-3.12.10-4.el5_7 respectively resolving    a security issues.
     A Certificate Authority (CA) issued fraudulent SSL certificates and    Netscape Portable Runtime (NSPR) and Network Security Services (NSS)    contain the built-in tokens of this fraudulent Certificate    Authority. This update renders all SSL certificates signed by the    fraudulent CA as untrusted for all uses.
  d. ESX third-party update for Service Console rpm RPMs      The ESX Service Console Operating System (COS) rpm packages are    updated to popt-1.10.2.3-22.el5_7.2, rpm-4.4.2.3-22.el5_7.2,    rpm-libs-4.4.2.3-22.el5_7.2 and rpm-python-4.4.2.3-22.el5_7.2    which fixes multiple security issues.
     The Common Vulnerabilities and Exposures project (cve.mitre.org) has    assigned the names CVE-2010-2059 and CVE-2011-3378 to these    issues.
  e. ESX third-party update for Service Console samba RPMs      The ESX Service Console Operating System (COS) samba packages are    updated to samba-client-3.0.33-3.29.el5_7.4,    samba-common-3.0.33-3.29.el5_7.4 and    libsmbclient-3.0.33-3.29.el5_7.4 which fixes multiple security    issues in the Samba client.
     The Common Vulnerabilities and Exposures project (cve.mitre.org) has    assigned the names CVE-2010-0547, CVE-2010-0787, CVE-2011-1678,    CVE-2011-2522 and CVE-2011-2694 to these issues.
     Note that ESX does not include the Samba Web Administration Tool    (SWAT) and therefore ESX COS is not affected by CVE-2011-2522 and    CVE-2011-2694.
  f. ESX third-party update for Service Console python package      The ESX Service Console (COS) python package is updated to    2.4.3-44 which fixes multiple security issues.
     The Common Vulnerabilities and Exposures project (cve.mitre.org) has    assigned the names CVE-2009-3720, CVE-2010-3493, CVE-2011-1015 and    CVE-2011-1521 to these issues.
  g. ESXi update to third-party component python      The python third-party library is updated to python 2.5.6 which    fixes multiple security issues.
     The Common Vulnerabilities and Exposures project (cve.mitre.org) has    assigned the names CVE-2009-3560, CVE-2009-3720, CVE-2010-1634,    CVE-2010-2089, and CVE-2011-1521 to these issues.

Security issues :

  - Using PCI passthrough without interrupt remapping     support allowed KVM guests to generate MSI interrupts     and thus potentially inject traps. A privileged guest     user could use this flaw to crash the host or possibly     escalate their privileges on the host. The fix for this     issue can prevent PCI passthrough working and guests     starting. (CVE-2011-1898, Important)

  - Flaw in the client-side NLM implementation could allow a     local, unprivileged user to cause a denial of service.
    (CVE-2011-2491, Important)

  - Integer underflow in the Bluetooth implementation could     allow a remote attacker to cause a denial of service or     escalate their privileges by sending a specially crafted     request to a target system via Bluetooth.
    (CVE-2011-2497, Important)

  - Buffer overflows in the netlink-based wireless     configuration interface implementation could allow a     local user, who has the CAP_NET_ADMIN capability, to     cause a denial of service or escalate their privileges     on systems that have an active wireless interface.
    (CVE-2011-2517, Important)

  - Flaw in the way the maximum file offset was handled for     ext4 file systems could allow a local, unprivileged user     to cause a denial of service. (CVE-2011-2695, Important)

  - Flaw allowed napi_reuse_skb() to be called on VLAN     packets. An attacker on the local network could use this     flaw to send crafted packets to a target, possibly     causing a denial of service. (CVE-2011-1576, Moderate)

  - Integer signedness error in next_pidmap() could allow a     local, unprivileged user to cause a denial of service.
    (CVE-2011-1593, Moderate)

  - Race condition in the memory merging support (KSM) could     allow a local, unprivileged user to cause a denial of     service. KSM is off by default, but on systems running     VDSM, or on KVM hosts, it is likely turned on by the     ksm/ksmtuned services. (CVE-2011-2183, Moderate)

  - Flaw in inet_diag_bc_audit() could allow a local,     unprivileged user to cause a denial of service.
    (CVE-2011-2213, Moderate)

  - Flaw in the way space was allocated in the Global File     System 2 (GFS2) implementation. If the file system was     almost full, and a local, unprivileged user made an     fallocate() request, it could result in a denial of     service. Setting quotas to prevent users from using all     available disk space would prevent exploitation of this     flaw. (CVE-2011-2689, Moderate)

  - Local, unprivileged users could send signals via the     sigqueueinfo system call, with si_code set to SI_TKILL     and with spoofed process and user IDs, to other     processes. This flaw does not allow existing permission     checks to be bypassed; signals can only be sent if your     privileges allow you to already do so. (CVE-2011-1182,     Low)

  - Heap overflow in the EFI GUID Partition Table (GPT)     implementation could allow a local attacker to cause a     denial of service by mounting a disk containing crafted     partition tables. (CVE-2011-1776, Low)

  - Structure padding in two structures in the Bluetooth     implementation was not initialized properly before being     copied to user-space, possibly allowing local,     unprivileged users to leak kernel stack memory to     user-space. (CVE-2011-2492, Low)

  - /proc/[PID]/io is world-readable by default. Previously,     these files could be read without any further     restrictions. A local, unprivileged user could read     these files, belonging to other, possibly privileged     processes to gather confidential information, such as     the length of a password used in a process.
    (CVE-2011-2495, Low)

The remote Oracle Linux 5 / 6 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2011-2038 advisory.

    - [dm] do not forward ioctls from logical volumes to the underlying device (Joe Jin) {CVE-2011-4127}
    - [block] fail SCSI passthrough ioctls on partition devices (Joe Jin) {CVE-2011-4127}
    - [block] add and use scsi_blk_cmd_ioctl (Joe Jin) {CVE-2011-4127}
    - [net] gro: reset vlan_tci on reuse (Dan Carpenter) {CVE-2011-1576}
    - [net] rose: Add length checks to CALL_REQUEST parsing (Ben Hutchings) {CVE-2011-1493}

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.

An updated rhev-hypervisor package that fixes one security issue and several bugs is now available.

The Red Hat Security Response Team has rated this update as having moderate security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link in the References section.

The rhev-hypervisor package provides a Red Hat Enterprise Virtualization Hypervisor ISO disk image. The Red Hat Enterprise Virtualization Hypervisor is a dedicated Kernel-based Virtual Machine (KVM) hypervisor. It includes everything necessary to run and manage virtual machines: A subset of the Red Hat Enterprise Linux operating environment and the Red Hat Enterprise Virtualization Agent.

Note: Red Hat Enterprise Virtualization Hypervisor is only available for the Intel 64 and AMD64 architectures with virtualization extensions.

A flaw was found that allowed napi_reuse_skb() to be called on VLAN (virtual LAN) packets. An attacker on the local network could trigger this flaw by sending specially crafted packets to a target system, possibly causing a denial of service. (CVE-2011-1576)

Red Hat would like to thank Ryan Sweat for reporting CVE-2011-1576.

This updated package provides updated components that include fixes for security issues; however, these issues have no security impact for Red Hat Enterprise Virtualization Hypervisor. These fixes are for bash issue CVE-2008-5374; curl issue CVE-2011-2192; kernel issues CVE-2010-4649, CVE-2011-0695, CVE-2011-0711, CVE-2011-1044, CVE-2011-1182, CVE-2011-1573, CVE-2011-1593, CVE-2011-1745, CVE-2011-1746, CVE-2011-1776, CVE-2011-1780, CVE-2011-1936, CVE-2011-2022, CVE-2011-2213, CVE-2011-2492, CVE-2011-2525, and CVE-2011-2689; libvirt issue CVE-2011-2511; and rsync issue CVE-2007-6200.

This update also fixes several bugs. Documentation for these bug fixes will be available shortly from the Technical Notes document linked to in the References section.

As Red Hat Enterprise Virtualization Hypervisor is based on KVM, the bug fixes from the KVM update RHBA-2011:1068 have been included in this update :

https://rhn.redhat.com/errata/RHBA-2011-1068.html

Users of Red Hat Enterprise Virtualization Hypervisor are advised to upgrade to this updated package, which resolves this issue and fixes the bugs noted in the Technical Notes.

The remote MiracleLinux 3 host has packages installed that are affected by multiple vulnerabilities as referenced in the AXSA:2011-313:06 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.
    Security issues fixed with this release:
    CVE-2010-4649     Integer overflow in the ib_uverbs_poll_cq function in drivers/infiniband/core/uverbs_cmd.c in the Linux     kernel before 2.6.37 allows 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-2011-0695     Race condition in the cm_work_handler function in the InfiniBand driver (drivers/infiniband/core/cma.c) in     Linux kernel 2.6.x allows remote attackers to cause a denial of service (panic) by sending an InfiniBand     request while other request handlers are still running, which triggers an invalid pointer dereference.
    CVE-2011-0711     The xfs_fs_geometry function in fs/xfs/xfs_fsops.c in the Linux kernel before 2.6.38-rc6-git3 does not     initialize a certain structure member, which allows local users to obtain potentially sensitive     information from kernel stack memory via an FSGEOMETRY_V1 ioctl call.
    CVE-2011-1044     The ib_uverbs_poll_cq function in drivers/infiniband/core/uverbs_cmd.c in the Linux kernel before 2.6.37     does not initialize a certain response buffer, which allows local users to obtain potentially sensitive     information from kernel memory via vectors that cause this buffer to be only partially filled, a different     vulnerability than CVE-2010-4649.
    CVE-2011-1576     Red Hat Enterprise Virtualization (RHEV) Hypervisor allows remote attackers to cause a denial of service     via unspecified vectors that cause the napi_reuse_skb function to be used on VLAN packets, which triggers     (1) a memory leak or (2) memory corruption, a different vulnerability than CVE-2011-1478.
    CVE-2011-1593     Multiple integer overflows in the next_pidmap function in kernel/pid.c in the Linux kernel before 2.6.38.4     allow local users to cause a denial of service (system crash) via a crafted (1) getdents or (2) readdir     system call.
    CVE-2011-1745     Integer overflow in the agp_generic_insert_memory function in drivers/char/agp/generic.c in the Linux     kernel before 2.6.38.5 allows local users to gain privileges or cause a denial of service (system crash)     via a crafted AGPIOC_BIND agp_ioctl ioctl call.
    CVE-2011-1746     Multiple integer overflows in the (1) agp_allocate_memory and (2) agp_create_user_memory functions in     drivers/char/agp/generic.c in the Linux kernel before 2.6.38.5 allow local users to trigger buffer     overflows, and consequently cause a denial of service (system crash) or possibly have unspecified other     impact, via vectors related to calls that specify a large number of memory pages.
    CVE-2011-1776     The is_gpt_valid function in fs/partitions/efi.c in the Linux kernel before 2.6.39 does not check the size     of an Extensible Firmware Interface (EFI) GUID Partition Table (GPT) entry, which allows physically     proximate attackers to cause a denial of service (heap-based buffer overflow and OOPS) or obtain sensitive     information from kernel heap memory by connecting a crafted GPT storage device, a different vulnerability     than CVE-2011-1577.
    CVE-2011-2022     The agp_generic_remove_memory function in drivers/char/agp/generic.c in the Linux kernel before 2.6.38.5     does not validate a certain start parameter, which allows local users to gain privileges or cause a denial     of service (system crash) via a crafted AGPIOC_UNBIND agp_ioctl ioctl call, a different vulnerability than     CVE-2011-1745.
    CVE-2011-2213     The inet_diag_bc_audit function in net/ipv4/inet_diag.c in the Linux kernel before 2.6.39.3 does not     properly audit INET_DIAG bytecode, which allows local users to cause a denial of service (kernel infinite     loop) via crafted INET_DIAG_REQ_BYTECODE instructions in a netlink message, as demonstrated by an     INET_DIAG_BC_JMP instruction with a zero yes value, a different vulnerability than CVE-2010-3880.
    CVE-2011-2492     The bluetooth subsystem in the Linux kernel before 3.0-rc4 does not properly initialize certain data     structures, which allows local users to obtain potentially sensitive information from kernel memory via a     crafted getsockopt system call, related to (1) the l2cap_sock_getsockopt_old function in     net/bluetooth/l2cap_sock.c and (2) the rfcomm_sock_getsockopt_old function in net/bluetooth/rfcomm/sock.c.
    CVE-2011-2689     The gfs2_fallocate function in fs/gfs2/file.c in the Linux kernel before 3.0-rc1 does not ensure that the     size of a chunk allocation is a multiple of the block size, which allows local users to cause a denial of     service (BUG and system crash) by arranging for all resource groups to have too little free space.
    CVE-2011-1780     CVE-2011-2525     CVE-2011-1936     CVE-2011-1182     CVE-2011-1573     No descriptions available at the time of writing, please refer to the CVE links below.

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.

The remote Oracle Linux 5 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2011-0927 advisory.

    - Revert: [xen] hvm: svm support cleanups (Andrew Jones) [703715 702657] {CVE-2011-1780}
    - Revert: [xen] hvm: secure svm_cr_access (Andrew Jones) [703715 702657] {CVE-2011-1780}
    - [net] bluetooth: l2cap and rfcomm: fix info leak to userspace (Thomas Graf) [703020 703021]     {CVE-2011-2492}
    - [net] inet_diag: fix inet_diag_bc_audit data validation (Thomas Graf) [714538 714539] {CVE-2011-2213}
    - [misc] signal: fix kill signal spoofing issue (Oleg Nesterov) [690030 690031] {CVE-2011-1182}
    - [fs] proc: fix signedness issue in next_pidmap (Oleg Nesterov) [697826 697827] {CVE-2011-1593}
    - [char] agp: fix OOM and buffer overflow (Jerome Marchand) [699009 699010] {CVE-2011-1746}
    - [char] agp: fix arbitrary kernel memory writes (Jerome Marchand) [699005 699006] {CVE-2011-2022     CVE-2011-1745}
    - [infiniband] core: Handle large number of entries in poll CQ (Jay Fenlason) [668370 668371]     {CVE-2011-1044 CVE-2010-4649}
    - [infiniband] core: fix panic in ib_cm:cm_work_handler (Jay Fenlason) [679995 679996] {CVE-2011-0695}
    - [fs] validate size of EFI GUID partition entries (Anton Arapov) [703027 703028] {CVE-2011-1776}
    - [xen] hvm: secure vmx cpuid (Andrew Jones) [706324 706323] {CVE-2011-1936}
    - [xen] hvm: secure svm_cr_access (Andrew Jones) [703715 702657] {CVE-2011-1780}
    - [xen] hvm: svm support cleanups (Andrew Jones) [703715 702657] {CVE-2011-1780}
    - [net] sctp: fix calc of INIT/INIT-ACK chunk length to set (Thomas Graf) [695384 695385] {CVE-2011-1573}
    - [fs] xfs: prevent leaking uninit stack memory in FSGEOMETRY_V1 p2 (Phillip Lougher) [677265 677266]     {CVE-2011-0711}
    - [fs] xfs: prevent leaking uninit stack memory in FSGEOMETRY_V1 (Phillip Lougher) [677265 677266]     {CVE-2011-0711}
    - [net] core: Fix memory leak/corruption on VLAN GRO_DROP (Herbert Xu) [695174 691565] {CVE-2011-1576}

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
76634	RHEL 6 : MRG (RHSA-2011:1253)	Nessus	Red Hat Local Security Checks	2014/7/22	2021/1/14	high
55609	CentOS 5 : kernel (CESA-2011:0927)	Nessus	CentOS Local Security Checks	2011/7/19	2021/1/4	medium
56344	Ubuntu 10.04 LTS : linux-lts-backport-maverick vulnerabilities (USN-1219-1)	Nessus	Ubuntu Local Security Checks	2011/9/30	2019/9/19	critical
56466	Ubuntu 10.10 : linux vulnerabilities (USN-1227-1)	Nessus	Ubuntu Local Security Checks	2011/10/12	2019/9/19	critical
56644	Ubuntu 10.10 : linux-mvl-dove vulnerabilities (USN-1245-1)	Nessus	Ubuntu Local Security Checks	2011/10/26	2013/3/9	critical
56747	Ubuntu 10.04 LTS : linux vulnerabilities (USN-1253-1)	Nessus	Ubuntu Local Security Checks	2011/11/9	2019/9/19	critical
57749	VMSA-2012-0001 : VMware ESXi and ESX updates to third-party library and ESX Service Console	Nessus	VMware ESX Local Security Checks	2012/1/31	2021/1/6	high
61118	Scientific Linux Security Update : kernel on SL6.x i386/x86_64	Nessus	Scientific Linux Local Security Checks	2012/8/1	2021/1/14	high
68426	Oracle Linux 5 / 6 : Unbreakable Enterprise kernel (ELSA-2011-2038)	Nessus	Oracle Linux Local Security Checks	2013/7/12	2026/2/9	medium
79279	RHEL 5 : rhev-hypervisor (RHSA-2011:1090)	Nessus	Red Hat Local Security Checks	2014/11/17	2021/1/14	medium
284235	MiracleLinux 3 : kernel-2.6.18-274.1.AXS3 (AXSA:2011-313:06)	Nessus	Miracle Linux Local Security Checks	2026/1/14	2026/2/12	high
68304	Oracle Linux 5 : kernel (ELSA-2011-0927)	Nessus	Oracle Linux Local Security Checks	2013/7/12	2026/2/9	medium

检测

插件搜索

high

medium

critical

critical

critical

critical

high

high

medium

medium

high

medium