Scientific Linux: SLSA-2013:1645-2 Important Kernel Security Update

Date: Mon, 16 Dec 2013 17:22:37 +0000
Reply-To: scientific-linux-users@
Sender: Security Errata for Scientific Linux
 
From: Pat Riehecky 
Subject: Security ERRATA Important: kernel security update on SL6.x
 i386/x86_64
MIME-Version: 1.0

Synopsis: Important: kernel security update on SL6.x i386/x86_64
Advisory ID: SLSA-2013:1645-2
Issue Date: 2013-11-21
CVE Numbers: CVE-2012-6542
 CVE-2013-1929
 CVE-2013-3231
 CVE-2012-6545
 CVE-2013-2164
 CVE-2013-2234
 CVE-2013-2851
 CVE-2013-0343
 CVE-2013-4345
 CVE-2013-2892
 CVE-2013-2888
 CVE-2013-4387
 CVE-2013-1928
 CVE-2013-2889
 CVE-2013-4591
 CVE-2013-4592
--

This update fixes the following security issues:

* A flaw was found in the way the Linux kernel's IPv6 implementation
handled certain UDP packets when the UDP Fragmentation Offload (UFO)
feature was enabled. A remote attacker could use this flaw to crash the
system or, potentially, escalate their privileges on the system.
(CVE-2013-4387, Important)

* A flaw was found in the way the Linux kernel handled the creation of
temporary IPv6 addresses. If the IPv6 privacy extension was enabled
(/proc/sys/net/ipv6/conf/eth0/use_tempaddr set to '2'), an attacker on the
local network could disable IPv6 temporary address generation, leading to
a potential information disclosure. (CVE-2013-0343, Moderate)

* A flaw was found in the way the Linux kernel handled HID (Human
Interface Device) reports with an out-of-bounds Report ID. An attacker
with physical access to the system could use this flaw to crash the system
or, potentially, escalate their privileges on the system. (CVE-2013-2888,
Moderate)

* An off-by-one flaw was found in the way the ANSI CPRNG implementation in
the Linux kernel processed non-block size aligned requests. This could
lead to random numbers being generated with less bits of entropy than
expected when ANSI CPRNG was used. (CVE-2013-4345, Moderate)

* It was found that the fix for CVE-2012-2375 released via SLSA-2012:1580
accidentally removed a check for small-sized result buffers. A local,
unprivileged user with access to an NFSv4 mount with ACL support could use
this flaw to crash the system or, potentially, escalate their privileges
on the system. (CVE-2013-4591, Moderate)

* A flaw was found in the way IOMMU memory mappings were handled when
moving memory slots. A malicious user on a KVM host who has the ability to
assign a device to a guest could use this flaw to crash the host.
(CVE-2013-4592, Moderate)

* Heap-based buffer overflow flaws were found in the way the Zeroplus and
Pantherlord/GreenAsia game controllers handled HID reports. An attacker
with physical access to the system could use these flaws to crash the
system or, potentially, escalate their privileges on the system.
(CVE-2013-2889, CVE-2013-2892, Moderate)

* Two information leak flaws were found in the logical link control (LLC)
implementation in the Linux kernel. A local, unprivileged user could use
these flaws to leak kernel stack memory to user space. (CVE-2012-6542,
CVE-2013-3231, Low)

* A heap-based buffer overflow in the way the tg3 Ethernet driver parsed
the vital product data (VPD) of devices could allow an attacker with
physical access to a system to cause a denial of service or, potentially,
escalate their privileges. (CVE-2013-1929, Low)

* Information leak flaws in the Linux kernel could allow a privileged,
local user to leak kernel memory to user space. (CVE-2012-6545,
CVE-2013-1928, CVE-2013-2164, CVE-2013-2234, Low)

* A format string flaw was found in the Linux kernel's block layer. A
privileged, local user could potentially use this flaw to escalate their
privileges to kernel level (ring0). (CVE-2013-2851, Low)

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

SL6
 x86_64
 kernel-2.6.32-431.el6.x86_64.rpm
 kernel-debug-2.6.32-431.el6.x86_64.rpm
 kernel-debug-debuginfo-2.6.32-431.el6.x86_64.rpm
 kernel-debug-devel-2.6.32-431.el6.x86_64.rpm
 kernel-debuginfo-2.6.32-431.el6.x86_64.rpm
 kernel-debuginfo-common-x86_64-2.6.32-431.el6.x86_64.rpm
 kernel-devel-2.6.32-431.el6.x86_64.rpm
 kernel-headers-2.6.32-431.el6.x86_64.rpm
 perf-2.6.32-431.el6.x86_64.rpm
 perf-debuginfo-2.6.32-431.el6.x86_64.rpm
 python-perf-debuginfo-2.6.32-431.el6.x86_64.rpm
 python-perf-2.6.32-431.el6.x86_64.rpm
 i386
 kernel-2.6.32-431.el6.i686.rpm
 kernel-debug-2.6.32-431.el6.i686.rpm
 kernel-debug-debuginfo-2.6.32-431.el6.i686.rpm
 kernel-debug-devel-2.6.32-431.el6.i686.rpm
 kernel-debuginfo-2.6.32-431.el6.i686.rpm
 kernel-debuginfo-common-i686-2.6.32-431.el6.i686.rpm
 kernel-devel-2.6.32-431.el6.i686.rpm
 kernel-headers-2.6.32-431.el6.i686.rpm
 perf-2.6.32-431.el6.i686.rpm
 perf-debuginfo-2.6.32-431.el6.i686.rpm
 python-perf-debuginfo-2.6.32-431.el6.i686.rpm
 python-perf-2.6.32-431.el6.i686.rpm
 noarch
 kernel-abi-whitelists-2.6.32-431.el6.noarch.rpm
 kernel-doc-2.6.32-431.el6.noarch.rpm
 kernel-firmware-2.6.32-431.el6.noarch.rpm

- Scientific Linux Development Team