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[RHSA-2014:0923-01] Important: kernel security update

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Red Hat Security Advisory

 

Synopsis: Important: kernel security update

Advisory ID: RHSA-2014:0923-01

Product: Red Hat Enterprise Linux

Advisory URL: https://rhn.redhat.com/errata/RHSA-2014-0923.html

Issue date: 2014-07-23

CVE Names: CVE-2014-4699 CVE-2014-4943

=====================================================================

 

1. Summary:

 

Updated kernel packages that fix two security issues are now available for

Red Hat Enterprise Linux 7.

 

The Red Hat Security Response Team has rated this update as having

Important 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.

 

2. Relevant releases/architectures:

 

Red Hat Enterprise Linux Client (v. 7) - noarch, x86_64

Red Hat Enterprise Linux Client Optional (v. 7) - noarch, x86_64

Red Hat Enterprise Linux ComputeNode (v. 7) - noarch, x86_64

Red Hat Enterprise Linux ComputeNode Optional (v. 7) - noarch, x86_64

Red Hat Enterprise Linux Server (v. 7) - noarch, ppc64, s390x, x86_64

Red Hat Enterprise Linux Server Optional (v. 7) - noarch, ppc64, s390x, x86_64

Red Hat Enterprise Linux Workstation (v. 7) - noarch, x86_64

Red Hat Enterprise Linux Workstation Optional (v. 7) - noarch, x86_64

 

3. Description:

 

The kernel packages contain the Linux kernel, the core of any Linux

operating system.

 

* It was found that the Linux kernel's ptrace subsystem allowed a traced

process' instruction pointer to be set to a non-canonical memory address

without forcing the non-sysret code path when returning to user space.

A local, unprivileged user could use this flaw to crash the system or,

potentially, escalate their privileges on the system. (CVE-2014-4699,

Important)

 

Note: The CVE-2014-4699 issue only affected systems using an Intel CPU.

 

* A flaw was found in the way the pppol2tp_setsockopt() and

pppol2tp_getsockopt() functions in the Linux kernel's PPP over L2TP

implementation handled requests with a non-SOL_PPPOL2TP socket option

level. A local, unprivileged user could use this flaw to escalate their

privileges on the system. (CVE-2014-4943, Important)

 

Red Hat would like to thank Andy Lutomirski for reporting CVE-2014-4699,

and Sasha Levin for reporting CVE-2014-4943.

 

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.

 

4. 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.

 

5. Bugs fixed (https://bugzilla.redhat.com/):

 

1115927 - CVE-2014-4699 kernel: x86_64: ptrace: sysret to non-canonical address

1119458 - CVE-2014-4943 kernel: net: pppol2tp: level handling in pppol2tp_[s,g]etsockopt()

 

6. Package List:

 

Red Hat Enterprise Linux Client (v. 7):

 

Source:

kernel-3.10.0-123.4.4.el7.src.rpm

 

noarch:

kernel-abi-whitelists-3.10.0-123.4.4.el7.noarch.rpm

 

x86_64:

kernel-3.10.0-123.4.4.el7.x86_64.rpm

kernel-debug-3.10.0-123.4.4.el7.x86_64.rpm

kernel-debug-debuginfo-3.10.0-123.4.4.el7.x86_64.rpm

kernel-debug-devel-3.10.0-123.4.4.el7.x86_64.rpm

kernel-debuginfo-3.10.0-123.4.4.el7.x86_64.rpm

kernel-debuginfo-common-x86_64-3.10.0-123.4.4.el7.x86_64.rpm

kernel-devel-3.10.0-123.4.4.el7.x86_64.rpm

kernel-headers-3.10.0-123.4.4.el7.x86_64.rpm

kernel-tools-3.10.0-123.4.4.el7.x86_64.rpm

kernel-tools-debuginfo-3.10.0-123.4.4.el7.x86_64.rpm

kernel-tools-libs-3.10.0-123.4.4.el7.x86_64.rpm

perf-3.10.0-123.4.4.el7.x86_64.rpm

perf-debuginfo-3.10.0-123.4.4.el7.x86_64.rpm

python-perf-debuginfo-3.10.0-123.4.4.el7.x86_64.rpm

 

Red Hat Enterprise Linux Client Optional (v. 7):

 

noarch:

kernel-doc-3.10.0-123.4.4.el7.noarch.rpm

 

x86_64:

kernel-debug-debuginfo-3.10.0-123.4.4.el7.x86_64.rpm

kernel-debuginfo-3.10.0-123.4.4.el7.x86_64.rpm

kernel-debuginfo-common-x86_64-3.10.0-123.4.4.el7.x86_64.rpm

kernel-tools-debuginfo-3.10.0-123.4.4.el7.x86_64.rpm

kernel-tools-libs-devel-3.10.0-123.4.4.el7.x86_64.rpm

perf-debuginfo-3.10.0-123.4.4.el7.x86_64.rpm

python-perf-3.10.0-123.4.4.el7.x86_64.rpm

python-perf-debuginfo-3.10.0-123.4.4.el7.x86_64.rpm

 

Red Hat Enterprise Linux ComputeNode (v. 7):

 

Source:

kernel-3.10.0-123.4.4.el7.src.rpm

 

noarch:

kernel-abi-whitelists-3.10.0-123.4.4.el7.noarch.rpm

 

x86_64:

kernel-3.10.0-123.4.4.el7.x86_64.rpm

kernel-debug-3.10.0-123.4.4.el7.x86_64.rpm

kernel-debug-debuginfo-3.10.0-123.4.4.el7.x86_64.rpm

kernel-debug-devel-3.10.0-123.4.4.el7.x86_64.rpm

kernel-debuginfo-3.10.0-123.4.4.el7.x86_64.rpm

kernel-debuginfo-common-x86_64-3.10.0-123.4.4.el7.x86_64.rpm

kernel-devel-3.10.0-123.4.4.el7.x86_64.rpm

kernel-headers-3.10.0-123.4.4.el7.x86_64.rpm

kernel-tools-3.10.0-123.4.4.el7.x86_64.rpm

kernel-tools-debuginfo-3.10.0-123.4.4.el7.x86_64.rpm

kernel-tools-libs-3.10.0-123.4.4.el7.x86_64.rpm

perf-3.10.0-123.4.4.el7.x86_64.rpm

perf-debuginfo-3.10.0-123.4.4.el7.x86_64.rpm

python-perf-debuginfo-3.10.0-123.4.4.el7.x86_64.rpm

 

Red Hat Enterprise Linux ComputeNode Optional (v. 7):

 

noarch:

kernel-doc-3.10.0-123.4.4.el7.noarch.rpm

 

x86_64:

kernel-debug-debuginfo-3.10.0-123.4.4.el7.x86_64.rpm

kernel-debuginfo-3.10.0-123.4.4.el7.x86_64.rpm

kernel-debuginfo-common-x86_64-3.10.0-123.4.4.el7.x86_64.rpm

kernel-tools-debuginfo-3.10.0-123.4.4.el7.x86_64.rpm

kernel-tools-libs-devel-3.10.0-123.4.4.el7.x86_64.rpm

perf-debuginfo-3.10.0-123.4.4.el7.x86_64.rpm

python-perf-3.10.0-123.4.4.el7.x86_64.rpm

python-perf-debuginfo-3.10.0-123.4.4.el7.x86_64.rpm

 

Red Hat Enterprise Linux Server (v. 7):

 

Source:

kernel-3.10.0-123.4.4.el7.src.rpm

 

noarch:

kernel-abi-whitelists-3.10.0-123.4.4.el7.noarch.rpm

 

ppc64:

kernel-3.10.0-123.4.4.el7.ppc64.rpm

kernel-bootwrapper-3.10.0-123.4.4.el7.ppc64.rpm

kernel-debug-3.10.0-123.4.4.el7.ppc64.rpm

kernel-debug-debuginfo-3.10.0-123.4.4.el7.ppc64.rpm

kernel-debug-devel-3.10.0-123.4.4.el7.ppc64.rpm

kernel-debuginfo-3.10.0-123.4.4.el7.ppc64.rpm

kernel-debuginfo-common-ppc64-3.10.0-123.4.4.el7.ppc64.rpm

kernel-devel-3.10.0-123.4.4.el7.ppc64.rpm

kernel-headers-3.10.0-123.4.4.el7.ppc64.rpm

kernel-tools-3.10.0-123.4.4.el7.ppc64.rpm

kernel-tools-debuginfo-3.10.0-123.4.4.el7.ppc64.rpm

kernel-tools-libs-3.10.0-123.4.4.el7.ppc64.rpm

perf-3.10.0-123.4.4.el7.ppc64.rpm

perf-debuginfo-3.10.0-123.4.4.el7.ppc64.rpm

python-perf-debuginfo-3.10.0-123.4.4.el7.ppc64.rpm

 

s390x:

kernel-3.10.0-123.4.4.el7.s390x.rpm

kernel-debug-3.10.0-123.4.4.el7.s390x.rpm

kernel-debug-debuginfo-3.10.0-123.4.4.el7.s390x.rpm

kernel-debug-devel-3.10.0-123.4.4.el7.s390x.rpm

kernel-debuginfo-3.10.0-123.4.4.el7.s390x.rpm

kernel-debuginfo-common-s390x-3.10.0-123.4.4.el7.s390x.rpm

kernel-devel-3.10.0-123.4.4.el7.s390x.rpm

kernel-headers-3.10.0-123.4.4.el7.s390x.rpm

kernel-kdump-3.10.0-123.4.4.el7.s390x.rpm

kernel-kdump-debuginfo-3.10.0-123.4.4.el7.s390x.rpm

kernel-kdump-devel-3.10.0-123.4.4.el7.s390x.rpm

perf-3.10.0-123.4.4.el7.s390x.rpm

perf-debuginfo-3.10.0-123.4.4.el7.s390x.rpm

python-perf-debuginfo-3.10.0-123.4.4.el7.s390x.rpm

 

x86_64:

kernel-3.10.0-123.4.4.el7.x86_64.rpm

kernel-debug-3.10.0-123.4.4.el7.x86_64.rpm

kernel-debug-debuginfo-3.10.0-123.4.4.el7.x86_64.rpm

kernel-debug-devel-3.10.0-123.4.4.el7.x86_64.rpm

kernel-debuginfo-3.10.0-123.4.4.el7.x86_64.rpm

kernel-debuginfo-common-x86_64-3.10.0-123.4.4.el7.x86_64.rpm

kernel-devel-3.10.0-123.4.4.el7.x86_64.rpm

kernel-headers-3.10.0-123.4.4.el7.x86_64.rpm

kernel-tools-3.10.0-123.4.4.el7.x86_64.rpm

kernel-tools-debuginfo-3.10.0-123.4.4.el7.x86_64.rpm

kernel-tools-libs-3.10.0-123.4.4.el7.x86_64.rpm

perf-3.10.0-123.4.4.el7.x86_64.rpm

perf-debuginfo-3.10.0-123.4.4.el7.x86_64.rpm

python-perf-debuginfo-3.10.0-123.4.4.el7.x86_64.rpm

 

Red Hat Enterprise Linux Server Optional (v. 7):

 

noarch:

kernel-doc-3.10.0-123.4.4.el7.noarch.rpm

 

ppc64:

kernel-debug-debuginfo-3.10.0-123.4.4.el7.ppc64.rpm

kernel-debuginfo-3.10.0-123.4.4.el7.ppc64.rpm

kernel-debuginfo-common-ppc64-3.10.0-123.4.4.el7.ppc64.rpm

kernel-tools-debuginfo-3.10.0-123.4.4.el7.ppc64.rpm

kernel-tools-libs-devel-3.10.0-123.4.4.el7.ppc64.rpm

perf-debuginfo-3.10.0-123.4.4.el7.ppc64.rpm

python-perf-3.10.0-123.4.4.el7.ppc64.rpm

python-perf-debuginfo-3.10.0-123.4.4.el7.ppc64.rpm

 

s390x:

kernel-debug-debuginfo-3.10.0-123.4.4.el7.s390x.rpm

kernel-debuginfo-3.10.0-123.4.4.el7.s390x.rpm

kernel-debuginfo-common-s390x-3.10.0-123.4.4.el7.s390x.rpm

kernel-kdump-debuginfo-3.10.0-123.4.4.el7.s390x.rpm

perf-debuginfo-3.10.0-123.4.4.el7.s390x.rpm

python-perf-3.10.0-123.4.4.el7.s390x.rpm

python-perf-debuginfo-3.10.0-123.4.4.el7.s390x.rpm

 

x86_64:

kernel-debug-debuginfo-3.10.0-123.4.4.el7.x86_64.rpm

kernel-debuginfo-3.10.0-123.4.4.el7.x86_64.rpm

kernel-debuginfo-common-x86_64-3.10.0-123.4.4.el7.x86_64.rpm

kernel-tools-debuginfo-3.10.0-123.4.4.el7.x86_64.rpm

kernel-tools-libs-devel-3.10.0-123.4.4.el7.x86_64.rpm

perf-debuginfo-3.10.0-123.4.4.el7.x86_64.rpm

python-perf-3.10.0-123.4.4.el7.x86_64.rpm

python-perf-debuginfo-3.10.0-123.4.4.el7.x86_64.rpm

 

Red Hat Enterprise Linux Workstation (v. 7):

 

Source:

kernel-3.10.0-123.4.4.el7.src.rpm

 

noarch:

kernel-abi-whitelists-3.10.0-123.4.4.el7.noarch.rpm

 

x86_64:

kernel-3.10.0-123.4.4.el7.x86_64.rpm

kernel-debug-3.10.0-123.4.4.el7.x86_64.rpm

kernel-debug-debuginfo-3.10.0-123.4.4.el7.x86_64.rpm

kernel-debug-devel-3.10.0-123.4.4.el7.x86_64.rpm

kernel-debuginfo-3.10.0-123.4.4.el7.x86_64.rpm

kernel-debuginfo-common-x86_64-3.10.0-123.4.4.el7.x86_64.rpm

kernel-devel-3.10.0-123.4.4.el7.x86_64.rpm

kernel-headers-3.10.0-123.4.4.el7.x86_64.rpm

kernel-tools-3.10.0-123.4.4.el7.x86_64.rpm

kernel-tools-debuginfo-3.10.0-123.4.4.el7.x86_64.rpm

kernel-tools-libs-3.10.0-123.4.4.el7.x86_64.rpm

perf-3.10.0-123.4.4.el7.x86_64.rpm

perf-debuginfo-3.10.0-123.4.4.el7.x86_64.rpm

python-perf-debuginfo-3.10.0-123.4.4.el7.x86_64.rpm

 

Red Hat Enterprise Linux Workstation Optional (v. 7):

 

noarch:

kernel-doc-3.10.0-123.4.4.el7.noarch.rpm

 

x86_64:

kernel-debug-debuginfo-3.10.0-123.4.4.el7.x86_64.rpm

kernel-debuginfo-3.10.0-123.4.4.el7.x86_64.rpm

kernel-debuginfo-common-x86_64-3.10.0-123.4.4.el7.x86_64.rpm

kernel-tools-debuginfo-3.10.0-123.4.4.el7.x86_64.rpm

kernel-tools-libs-devel-3.10.0-123.4.4.el7.x86_64.rpm

perf-debuginfo-3.10.0-123.4.4.el7.x86_64.rpm

python-perf-3.10.0-123.4.4.el7.x86_64.rpm

python-perf-debuginfo-3.10.0-123.4.4.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/#package

 

7. References:

 

https://www.redhat.com/security/data/cve/CVE-2014-4699.html

https://www.redhat.com/security/data/cve/CVE-2014-4943.html

https://access.redhat.com/security/updates/classification/#important

 

8. Contact:

 

The Red Hat security contact is . More contact

details at https://access.redhat.com/security/team/contact/

 

Copyright 2014 Red Hat, Inc.

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