ALAS-2015-565


Amazon Linux AMI Security Advisory: ALAS-2015-565
Advisory Release Date: 2015-09-25 15:21 Pacific
Severity: Medium

Issue Overview:

It was found that the Linux kernel's implementation of vectored pipe read and write functionality did not take into account the I/O vectors that were already processed when retrying after a failed atomic access operation, potentially resulting in memory corruption due to an I/O vector array overrun. A local, unprivileged user could use this flaw to crash the system or, potentially, escalate their privileges on the system. (CVE-2015-1805 )

A flaw was found in the Linux kernels handling of the SCTPs automatic handling of dynamic multi-homed connections. A race condition in the way the Linux kernel handles lists of associations in SCTP sockets using Address Configuration Change messages, leading to list corruption and panics. (CVE-2015-3212 )

A flaw was found in the way the Linux kernel's networking implementation handled UDP packets with incorrect checksum values. A remote attacker could potentially use this flaw to trigger an infinite loop in the kernel, resulting in a denial of service on the system, or cause a denial of service in applications using the edge triggered epoll functionality. (CVE-2015-5364 )

A flaw was found in the way the Linux kernel's networking implementation handled UDP packets with incorrect checksum values. A remote attacker could potentially use this flaw to trigger an infinite loop in the kernel, resulting in a denial of service on the system, or cause a denial of service in applications using the edge triggered epoll functionality. (CVE-2015-5366 )


Affected Packages:

kernel


Issue Correction:
Run yum clean all followed by 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-debuginfo-3.14.48-33.39.amzn1.i686
    kernel-debuginfo-3.14.48-33.39.amzn1.i686
    kernel-tools-devel-3.14.48-33.39.amzn1.i686
    perf-3.14.48-33.39.amzn1.i686
    perf-debuginfo-3.14.48-33.39.amzn1.i686
    kernel-devel-3.14.48-33.39.amzn1.i686
    kernel-3.14.48-33.39.amzn1.i686
    kernel-headers-3.14.48-33.39.amzn1.i686
    kernel-debuginfo-common-i686-3.14.48-33.39.amzn1.i686
    kernel-tools-3.14.48-33.39.amzn1.i686

noarch:
    kernel-doc-3.14.48-33.39.amzn1.noarch

src:
    kernel-3.14.48-33.39.amzn1.src

x86_64:
    kernel-tools-3.14.48-33.39.amzn1.x86_64
    kernel-tools-debuginfo-3.14.48-33.39.amzn1.x86_64
    kernel-3.14.48-33.39.amzn1.x86_64
    perf-debuginfo-3.14.48-33.39.amzn1.x86_64
    kernel-tools-devel-3.14.48-33.39.amzn1.x86_64
    kernel-devel-3.14.48-33.39.amzn1.x86_64
    kernel-headers-3.14.48-33.39.amzn1.x86_64
    kernel-debuginfo-common-x86_64-3.14.48-33.39.amzn1.x86_64
    perf-3.14.48-33.39.amzn1.x86_64
    kernel-debuginfo-3.14.48-33.39.amzn1.x86_64