Red Hat: 2015:1534-01: kernel: Moderate Advisory
Summary
The kernel packages contain the Linux kernel, the core of any Linux
operating system.
* 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,
Moderate)
* 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.
(CVE-2015-2666, Moderate)
* 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.
(CVE-2015-3636, Moderate)
* 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.
(CVE-2015-2922, Low)
Red Hat would like to thank Nathan Hoad for reporting the CVE-2014-9715
issue.
This update also fixes several bugs. Refer to the following Knowledgebase
article for further information:
https://access.redhat.com/articles/1474193
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.
For details on how to apply this update, refer to:
https://access.redhat.com/articles/11258
References
https://access.redhat.com/security/cve/CVE-2014-9715 https://access.redhat.com/security/cve/CVE-2015-2666 https://access.redhat.com/security/cve/CVE-2015-2922 https://access.redhat.com/security/cve/CVE-2015-3636 https://access.redhat.com/security/updates/classification/#moderate https://access.redhat.com/articles/1474193
Package List
Red Hat Enterprise Linux Client (v. 7):
Source:
kernel-3.10.0-229.11.1.el7.src.rpm
noarch:
kernel-abi-whitelists-3.10.0-229.11.1.el7.noarch.rpm
kernel-doc-3.10.0-229.11.1.el7.noarch.rpm
x86_64:
kernel-3.10.0-229.11.1.el7.x86_64.rpm
kernel-debug-3.10.0-229.11.1.el7.x86_64.rpm
kernel-debug-debuginfo-3.10.0-229.11.1.el7.x86_64.rpm
kernel-debug-devel-3.10.0-229.11.1.el7.x86_64.rpm
kernel-debuginfo-3.10.0-229.11.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-229.11.1.el7.x86_64.rpm
kernel-devel-3.10.0-229.11.1.el7.x86_64.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-debuginfo-3.10.0-229.11.1.el7.x86_64.rpm
kernel-tools-libs-3.10.0-229.11.1.el7.x86_64.rpm
perf-3.10.0-229.11.1.el7.x86_64.rpm
perf-debuginfo-3.10.0-229.11.1.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-229.11.1.el7.x86_64.rpm
Red Hat Enterprise Linux Client Optional (v. 7):
x86_64:
kernel-debug-debuginfo-3.10.0-229.11.1.el7.x86_64.rpm
kernel-debuginfo-3.10.0-229.11.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-229.11.1.el7.x86_64.rpm
kernel-tools-debuginfo-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-debuginfo-3.10.0-229.11.1.el7.x86_64.rpm
python-perf-3.10.0-229.11.1.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-229.11.1.el7.x86_64.rpm
Red Hat Enterprise Linux ComputeNode (v. 7):
Source:
kernel-3.10.0-229.11.1.el7.src.rpm
noarch:
kernel-abi-whitelists-3.10.0-229.11.1.el7.noarch.rpm
kernel-doc-3.10.0-229.11.1.el7.noarch.rpm
x86_64:
kernel-3.10.0-229.11.1.el7.x86_64.rpm
kernel-debug-3.10.0-229.11.1.el7.x86_64.rpm
kernel-debug-debuginfo-3.10.0-229.11.1.el7.x86_64.rpm
kernel-debug-devel-3.10.0-229.11.1.el7.x86_64.rpm
kernel-debuginfo-3.10.0-229.11.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-229.11.1.el7.x86_64.rpm
kernel-devel-3.10.0-229.11.1.el7.x86_64.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-debuginfo-3.10.0-229.11.1.el7.x86_64.rpm
kernel-tools-libs-3.10.0-229.11.1.el7.x86_64.rpm
perf-3.10.0-229.11.1.el7.x86_64.rpm
perf-debuginfo-3.10.0-229.11.1.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-229.11.1.el7.x86_64.rpm
Red Hat Enterprise Linux ComputeNode Optional (v. 7):
x86_64:
kernel-debug-debuginfo-3.10.0-229.11.1.el7.x86_64.rpm
kernel-debuginfo-3.10.0-229.11.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-229.11.1.el7.x86_64.rpm
kernel-tools-debuginfo-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-debuginfo-3.10.0-229.11.1.el7.x86_64.rpm
python-perf-3.10.0-229.11.1.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-229.11.1.el7.x86_64.rpm
Red Hat Enterprise Linux Server (v. 7):
Source:
kernel-3.10.0-229.11.1.el7.src.rpm
noarch:
kernel-abi-whitelists-3.10.0-229.11.1.el7.noarch.rpm
kernel-doc-3.10.0-229.11.1.el7.noarch.rpm
ppc64:
kernel-3.10.0-229.11.1.el7.ppc64.rpm
kernel-bootwrapper-3.10.0-229.11.1.el7.ppc64.rpm
kernel-debug-3.10.0-229.11.1.el7.ppc64.rpm
kernel-debug-debuginfo-3.10.0-229.11.1.el7.ppc64.rpm
kernel-debug-devel-3.10.0-229.11.1.el7.ppc64.rpm
kernel-debuginfo-3.10.0-229.11.1.el7.ppc64.rpm
kernel-debuginfo-common-ppc64-3.10.0-229.11.1.el7.ppc64.rpm
kernel-devel-3.10.0-229.11.1.el7.ppc64.rpm
kernel-headers-3.10.0-229.11.1.el7.ppc64.rpm
kernel-tools-3.10.0-229.11.1.el7.ppc64.rpm
kernel-tools-debuginfo-3.10.0-229.11.1.el7.ppc64.rpm
kernel-tools-libs-3.10.0-229.11.1.el7.ppc64.rpm
perf-3.10.0-229.11.1.el7.ppc64.rpm
perf-debuginfo-3.10.0-229.11.1.el7.ppc64.rpm
python-perf-debuginfo-3.10.0-229.11.1.el7.ppc64.rpm
s390x:
kernel-3.10.0-229.11.1.el7.s390x.rpm
kernel-debug-3.10.0-229.11.1.el7.s390x.rpm
kernel-debug-debuginfo-3.10.0-229.11.1.el7.s390x.rpm
kernel-debug-devel-3.10.0-229.11.1.el7.s390x.rpm
kernel-debuginfo-3.10.0-229.11.1.el7.s390x.rpm
kernel-debuginfo-common-s390x-3.10.0-229.11.1.el7.s390x.rpm
kernel-devel-3.10.0-229.11.1.el7.s390x.rpm
kernel-headers-3.10.0-229.11.1.el7.s390x.rpm
kernel-kdump-3.10.0-229.11.1.el7.s390x.rpm
kernel-kdump-debuginfo-3.10.0-229.11.1.el7.s390x.rpm
kernel-kdump-devel-3.10.0-229.11.1.el7.s390x.rpm
perf-3.10.0-229.11.1.el7.s390x.rpm
perf-debuginfo-3.10.0-229.11.1.el7.s390x.rpm
python-perf-debuginfo-3.10.0-229.11.1.el7.s390x.rpm
x86_64:
kernel-3.10.0-229.11.1.el7.x86_64.rpm
kernel-debug-3.10.0-229.11.1.el7.x86_64.rpm
kernel-debug-debuginfo-3.10.0-229.11.1.el7.x86_64.rpm
kernel-debug-devel-3.10.0-229.11.1.el7.x86_64.rpm
kernel-debuginfo-3.10.0-229.11.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-229.11.1.el7.x86_64.rpm
kernel-devel-3.10.0-229.11.1.el7.x86_64.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-debuginfo-3.10.0-229.11.1.el7.x86_64.rpm
kernel-tools-libs-3.10.0-229.11.1.el7.x86_64.rpm
perf-3.10.0-229.11.1.el7.x86_64.rpm
perf-debuginfo-3.10.0-229.11.1.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-229.11.1.el7.x86_64.rpm
Red Hat Enterprise Linux Server (v. 7):
Source:
kernel-3.10.0-229.11.1.ael7b.src.rpm
noarch:
kernel-abi-whitelists-3.10.0-229.11.1.ael7b.noarch.rpm
kernel-doc-3.10.0-229.11.1.ael7b.noarch.rpm
ppc64le:
kernel-3.10.0-229.11.1.ael7b.ppc64le.rpm
kernel-bootwrapper-3.10.0-229.11.1.ael7b.ppc64le.rpm
kernel-debug-3.10.0-229.11.1.ael7b.ppc64le.rpm
kernel-debug-debuginfo-3.10.0-229.11.1.ael7b.ppc64le.rpm
kernel-debuginfo-3.10.0-229.11.1.ael7b.ppc64le.rpm
kernel-debuginfo-common-ppc64le-3.10.0-229.11.1.ael7b.ppc64le.rpm
kernel-devel-3.10.0-229.11.1.ael7b.ppc64le.rpm
kernel-headers-3.10.0-229.11.1.ael7b.ppc64le.rpm
kernel-tools-3.10.0-229.11.1.ael7b.ppc64le.rpm
kernel-tools-debuginfo-3.10.0-229.11.1.ael7b.ppc64le.rpm
kernel-tools-libs-3.10.0-229.11.1.ael7b.ppc64le.rpm
perf-3.10.0-229.11.1.ael7b.ppc64le.rpm
perf-debuginfo-3.10.0-229.11.1.ael7b.ppc64le.rpm
python-perf-debuginfo-3.10.0-229.11.1.ael7b.ppc64le.rpm
Red Hat Enterprise Linux Server Optional (v. 7):
ppc64:
kernel-debug-debuginfo-3.10.0-229.11.1.el7.ppc64.rpm
kernel-debuginfo-3.10.0-229.11.1.el7.ppc64.rpm
kernel-debuginfo-common-ppc64-3.10.0-229.11.1.el7.ppc64.rpm
kernel-tools-debuginfo-3.10.0-229.11.1.el7.ppc64.rpm
kernel-tools-libs-devel-3.10.0-229.11.1.el7.ppc64.rpm
perf-debuginfo-3.10.0-229.11.1.el7.ppc64.rpm
python-perf-3.10.0-229.11.1.el7.ppc64.rpm
python-perf-debuginfo-3.10.0-229.11.1.el7.ppc64.rpm
s390x:
kernel-debug-debuginfo-3.10.0-229.11.1.el7.s390x.rpm
kernel-debuginfo-3.10.0-229.11.1.el7.s390x.rpm
kernel-debuginfo-common-s390x-3.10.0-229.11.1.el7.s390x.rpm
kernel-kdump-debuginfo-3.10.0-229.11.1.el7.s390x.rpm
perf-debuginfo-3.10.0-229.11.1.el7.s390x.rpm
python-perf-3.10.0-229.11.1.el7.s390x.rpm
python-perf-debuginfo-3.10.0-229.11.1.el7.s390x.rpm
x86_64:
kernel-debug-debuginfo-3.10.0-229.11.1.el7.x86_64.rpm
kernel-debuginfo-3.10.0-229.11.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-229.11.1.el7.x86_64.rpm
kernel-tools-debuginfo-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-debuginfo-3.10.0-229.11.1.el7.x86_64.rpm
python-perf-3.10.0-229.11.1.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-229.11.1.el7.x86_64.rpm
Red Hat Enterprise Linux Server Optional (v. 7):
ppc64le:
kernel-debug-debuginfo-3.10.0-229.11.1.ael7b.ppc64le.rpm
kernel-debug-devel-3.10.0-229.11.1.ael7b.ppc64le.rpm
kernel-debuginfo-3.10.0-229.11.1.ael7b.ppc64le.rpm
kernel-debuginfo-common-ppc64le-3.10.0-229.11.1.ael7b.ppc64le.rpm
kernel-tools-debuginfo-3.10.0-229.11.1.ael7b.ppc64le.rpm
kernel-tools-libs-devel-3.10.0-229.11.1.ael7b.ppc64le.rpm
perf-debuginfo-3.10.0-229.11.1.ael7b.ppc64le.rpm
python-perf-3.10.0-229.11.1.ael7b.ppc64le.rpm
python-perf-debuginfo-3.10.0-229.11.1.ael7b.ppc64le.rpm
Red Hat Enterprise Linux Workstation (v. 7):
Source:
kernel-3.10.0-229.11.1.el7.src.rpm
noarch:
kernel-abi-whitelists-3.10.0-229.11.1.el7.noarch.rpm
kernel-doc-3.10.0-229.11.1.el7.noarch.rpm
x86_64:
kernel-3.10.0-229.11.1.el7.x86_64.rpm
kernel-debug-3.10.0-229.11.1.el7.x86_64.rpm
kernel-debug-debuginfo-3.10.0-229.11.1.el7.x86_64.rpm
kernel-debug-devel-3.10.0-229.11.1.el7.x86_64.rpm
kernel-debuginfo-3.10.0-229.11.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-229.11.1.el7.x86_64.rpm
kernel-devel-3.10.0-229.11.1.el7.x86_64.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-debuginfo-3.10.0-229.11.1.el7.x86_64.rpm
kernel-tools-libs-3.10.0-229.11.1.el7.x86_64.rpm
perf-3.10.0-229.11.1.el7.x86_64.rpm
perf-debuginfo-3.10.0-229.11.1.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-229.11.1.el7.x86_64.rpm
Red Hat Enterprise Linux Workstation Optional (v. 7):
x86_64:
kernel-debug-debuginfo-3.10.0-229.11.1.el7.x86_64.rpm
kernel-debuginfo-3.10.0-229.11.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-229.11.1.el7.x86_64.rpm
kernel-tools-debuginfo-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-debuginfo-3.10.0-229.11.1.el7.x86_64.rpm
python-perf-3.10.0-229.11.1.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-229.11.1.el7.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 multiple security issues and several bugsare now available for Red Hat Enterprise Linux 7.Red Hat Product Security has rated this update as having Moderate 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 Client (v. 7) - noarch, x86_64
Red Hat Enterprise Linux Client Optional (v. 7) - x86_64
Red Hat Enterprise Linux ComputeNode (v. 7) - noarch, x86_64
Red Hat Enterprise Linux ComputeNode Optional (v. 7) - x86_64
Red Hat Enterprise Linux Server (v. 7) - noarch, ppc64, ppc64le, s390x, x86_64
Red Hat Enterprise Linux Server Optional (v. 7) - ppc64, ppc64le, s390x, x86_64
Red Hat Enterprise Linux Workstation (v. 7) - noarch, x86_64
Red Hat Enterprise Linux Workstation Optional (v. 7) - x86_64
Bugs Fixed
1203712 - CVE-2015-2922 kernel: denial of service (DoS) attack against IPv6 network stacks due to improper handling of Router Advertisements.
1204722 - CVE-2015-2666 kernel: execution in the early microcode loader
1208684 - CVE-2014-9715 kernel: netfilter connection tracking extensions denial of service
1218074 - CVE-2015-3636 kernel: ping sockets: use-after-free leading to local privilege escalation