Red Hat: 2015:0115-01: kernel: Important Advisory
Summary
The kernel packages contain the Linux kernel, the core of any Linux
operating system.
* A flaw was found in the way the Linux kernel's SCTP implementation
handled malformed or duplicate Address Configuration Change Chunks
(ASCONF). A remote attacker could use either of these flaws to crash the
system. (CVE-2014-3673, CVE-2014-3687, Important)
* A flaw was found in the way the Linux kernel's SCTP implementation
handled the association's output queue. A remote attacker could send
specially crafted packets that would cause the system to use an excessive
amount of memory, leading to a denial of service. (CVE-2014-3688,
Important)
The CVE-2014-3673 issue was discovered by Liu Wei of Red Hat.
All kernel users are advised to upgrade to these updated packages, which
contain backported patches to correct these issues. The system must be
rebooted for this update to take effect.
Summary
Solution
Before applying this update, make sure all previously released errata
relevant to your system have been applied.
This update is available via the Red Hat Network. Details on how to use the
Red Hat Network to apply this update are available at
https://access.redhat.com/articles/11258
To install kernel packages manually, use "rpm -ivh [package]". Do not use
"rpm -Uvh" as that will remove the running kernel binaries from your
system. You may use "rpm -e" to remove old kernels after determining that
the new kernel functions properly on your system.
References
https://access.redhat.com/security/cve/CVE-2014-3673 https://access.redhat.com/security/cve/CVE-2014-3687 https://access.redhat.com/security/cve/CVE-2014-3688 https://access.redhat.com/security/updates/classification/#important
Package List
Red Hat Enterprise Linux AUS (v. 6.2 server):
Source:
kernel-2.6.32-220.58.1.el6.src.rpm
noarch:
kernel-doc-2.6.32-220.58.1.el6.noarch.rpm
kernel-firmware-2.6.32-220.58.1.el6.noarch.rpm
x86_64:
kernel-2.6.32-220.58.1.el6.x86_64.rpm
kernel-debug-2.6.32-220.58.1.el6.x86_64.rpm
kernel-debug-debuginfo-2.6.32-220.58.1.el6.x86_64.rpm
kernel-debug-devel-2.6.32-220.58.1.el6.x86_64.rpm
kernel-debuginfo-2.6.32-220.58.1.el6.x86_64.rpm
kernel-debuginfo-common-x86_64-2.6.32-220.58.1.el6.x86_64.rpm
kernel-devel-2.6.32-220.58.1.el6.x86_64.rpm
kernel-headers-2.6.32-220.58.1.el6.x86_64.rpm
perf-2.6.32-220.58.1.el6.x86_64.rpm
perf-debuginfo-2.6.32-220.58.1.el6.x86_64.rpm
python-perf-debuginfo-2.6.32-220.58.1.el6.x86_64.rpm
Red Hat Enterprise Linux Server Optional AUS (v. 6.2):
Source:
kernel-2.6.32-220.58.1.el6.src.rpm
x86_64:
kernel-debug-debuginfo-2.6.32-220.58.1.el6.x86_64.rpm
kernel-debuginfo-2.6.32-220.58.1.el6.x86_64.rpm
kernel-debuginfo-common-x86_64-2.6.32-220.58.1.el6.x86_64.rpm
perf-debuginfo-2.6.32-220.58.1.el6.x86_64.rpm
python-perf-2.6.32-220.58.1.el6.x86_64.rpm
python-perf-debuginfo-2.6.32-220.58.1.el6.x86_64.rpm
These packages are GPG signed by Red Hat for security. Our key and
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/
Topic
Updated kernel packages that fix three security issues are now availablefor Red Hat Enterprise Linux 6.2 Advanced Update Support.Red Hat Product Security has rated this update as having Important securityimpact. Common Vulnerability Scoring System (CVSS) base scores, which givedetailed severity ratings, are available for each vulnerability from theCVE links in the References section.
Topic
Relevant Releases Architectures
Red Hat Enterprise Linux AUS (v. 6.2 server) - noarch, x86_64
Red Hat Enterprise Linux Server Optional AUS (v. 6.2) - x86_64
Bugs Fixed
1147850 - CVE-2014-3673 kernel: sctp: skb_over_panic when receiving malformed ASCONF chunks
1155731 - CVE-2014-3687 kernel: net: sctp: fix panic on duplicate ASCONF chunks
1155745 - CVE-2014-3688 kernel: net: sctp: remote memory pressure from excessive queueing