Moderate CentOS kernel Security Update
|kernel-3.10.0-229.11.1.el7.src.rpm, kernel-3.10.0-229.11.1.el7.x86_64.rpm, kernel-abi-whitelists-3.10.0-229.11.1.el7.noarch.rpm, kernel-debug-3.10.0-229.11.1.el7.x86_64.rpm, kernel-debug-devel-3.10.0-229.11.1.el7.x86_64.rpm, kernel-devel-3.10.0-229.11.1.el7.x86_64.rpm, kernel-doc-3.10.0-229.11.1.el7.noarch.rpm, kernel-headers-3.10.0-229.11.1.el7.x86_64.rpm, kernel-tools-3.10.0-229.11.1.el7.x86_64.rpm, kernel-tools-libs-3.10.0-229.11.1.el7.x86_64.rpm, kernel-tools-libs-devel-3.10.0-229.11.1.el7.x86_64.rpm, perf-3.10.0-229.11.1.el7.x86_64.rpm, python-perf-3.10.0-229.11.1.el7.x86_64.rpm|
Updated kernel packages that fix multiple security issues and several bugs
are now available for Red Hat Enterprise Linux 7.
Red Hat Product Security has rated this update as having Moderate 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
* An integer overflow flaw was found in the way the Linux kernel's
netfilter connection tracking implementation loaded extensions. An attacker
on a local network could potentially send a sequence of specially crafted
packets that would initiate the loading of a large number of extensions,
causing the targeted system in that network to crash. (CVE-2014-9715,
* A stack-based buffer overflow flaw was found in the Linux kernel's early
load microcode functionality. On a system with UEFI Secure Boot enabled, a
local, privileged user could use this flaw to increase their privileges to
the kernel (ring0) level, bypassing intended restrictions in place.
* It was found that the Linux kernel's ping socket implementation did not
properly handle socket unhashing during spurious disconnects, which could
lead to a use-after-free flaw. On x86-64 architecture systems, a local user
able to create ping sockets could use this flaw to crash the system.
On non-x86-64 architecture systems, a local user able to create ping
sockets could use this flaw to escalate their privileges on the system.
* It was found that the Linux kernel's TCP/IP protocol suite implementation
for IPv6 allowed the Hop Limit value to be set to a smaller value than the
default one. An attacker on a local network could use this flaw to prevent
systems on that network from sending or receiving network packets.
Red Hat would like to thank Nathan Hoad for reporting the CVE-2014-9715
This update also fixes several bugs. Refer to the following Knowledgebase
article for further information:
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.
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Am I vulnerable?
The constraints below list the versions that this vulnerability is patched in, and versions that are unaffected. If a patch is ready but unrealeased, then it is pending.
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Affected package information