Medium: kernel

Issue Overview:

An integer overflow flaw was found in the i915_gem_do_execbuffer() function in the Intel i915 driver in the Linux kernel. A local, unprivileged user could use this flaw to cause a denial of service. This issue only affected 32-bit systems. (CVE-2012-2384, Moderate)

A memory leak flaw was found in the way the Linux kernel’s memory subsystem handled resource clean up in the mmap() failure path when the MAP_HUGETLB flag was set. A local, unprivileged user could use this flaw to cause a denial of service. (CVE-2012-2390, Moderate)

A race condition was found in the way access to inet->opt ip_options was synchronized in the Linux kernel’s TCP/IP protocol suite implementation. Depending on the network facing applications running on the system, a remote attacker could possibly trigger this flaw to cause a denial of service. A local, unprivileged user could use this flaw to cause a denial of service regardless of the applications the system runs. (CVE-2012-3552, Moderate)

A flaw was found in the way the Linux kernel’s dl2k driver, used by certain D-Link Gigabit Ethernet adapters, restricted IOCTLs. A local, unprivileged user could use this flaw to issue potentially harmful IOCTLs, which could cause Ethernet adapters using the dl2k driver to malfunction (for example, losing network connectivity). (CVE-2012-2313, Low)

A flaw was found in the way the msg_namelen variable in the rds_recvmsg() function of the Linux kernel’s Reliable Datagram Sockets (RDS) protocol implementation was initialized. A local, unprivileged user could use this flaw to leak kernel stack memory to user-space. (CVE-2012-3430, Low)

Affected Packages:

kernel

Issue Correction:
Run yum update kernel to update your system. You will need to reboot your system in order for the new kernel to be running.

New Packages:

i686:  
    kernel-tools-3.2.30-49.59.amzn1.i686  
    kernel-tools-debuginfo-3.2.30-49.59.amzn1.i686  
    kernel-devel-3.2.30-49.59.amzn1.i686  
    kernel-debuginfo-common-i686-3.2.30-49.59.amzn1.i686  
    kernel-3.2.30-49.59.amzn1.i686  
    kernel-headers-3.2.30-49.59.amzn1.i686  
    kernel-debuginfo-3.2.30-49.59.amzn1.i686  
  
noarch:  
    kernel-doc-3.2.30-49.59.amzn1.noarch  
  
src:  
    kernel-3.2.30-49.59.amzn1.src  
  
x86_64:  
    kernel-debuginfo-3.2.30-49.59.amzn1.x86_64  
    kernel-tools-3.2.30-49.59.amzn1.x86_64  
    kernel-3.2.30-49.59.amzn1.x86_64  
    kernel-devel-3.2.30-49.59.amzn1.x86_64  
    kernel-tools-debuginfo-3.2.30-49.59.amzn1.x86_64  
    kernel-headers-3.2.30-49.59.amzn1.x86_64  
    kernel-debuginfo-common-x86_64-3.2.30-49.59.amzn1.x86_64  

Additional References

Red Hat: CVE-2012-2313, CVE-2012-2384, CVE-2012-2390, CVE-2012-3430, CVE-2012-3552

Mitre: CVE-2012-2313, CVE-2012-2384, CVE-2012-2390, CVE-2012-3430, CVE-2012-3552