Exploited
medium
6.9
CWE
362
Advisory Published
CVE Published
Updated

CVE-2014-0196: Linux Kernel Race Condition Vulnerability

First published: Thu May 01 2014(Updated: )

It is unexpected and not allowed to call TTY buffer helpers like tty_insert_flip_string concurrently. This may lead to crashes when ECHOing is enabled and concurrect writers call pty_write in the meantime. In that case the two writers: * the ECHOing from a workqueue and * pty_write from the process race and can overflow the corresponding TTY buffer. An unprivileged local user could use this flaw to crash the system or, potentially, escalate their privileges on the system. References: <a href="http://seclists.org/oss-sec/2014/q2/243">http://seclists.org/oss-sec/2014/q2/243</a>

Credit: secalert@redhat.com secalert@redhat.com secalert@redhat.com

Affected SoftwareAffected VersionHow to fix
redhat/kernel<0:2.6.32-358.6.1.el6
0:2.6.32-358.6.1.el6
redhat/kernel<0:2.6.32-220.51.1.el6
0:2.6.32-220.51.1.el6
redhat/kernel<0:2.6.32-279.43.2.el6
0:2.6.32-279.43.2.el6
redhat/kernel<0:3.10.0-123.1.2.el7
0:3.10.0-123.1.2.el7
redhat/kernel-rt<0:3.10.33-rt32.34.el6
0:3.10.33-rt32.34.el6
Linux Linux kernel<=3.14.3
Debian Debian Linux=6.0
Debian Debian Linux=7.0
Redhat Enterprise Linux=6.0
Redhat Enterprise Linux Eus=6.3
Redhat Enterprise Linux Eus=6.4
Redhat Enterprise Linux Server Eus=6.3
SUSE SUSE Linux Enterprise Desktop=11-sp3
Suse Suse Linux Enterprise High Availability Extension=11-sp3
SUSE SUSE Linux Enterprise Server=11-sp3
Suse Suse Linux Enterprise Server Vmware=11-sp3
Oracle Linux=6
Canonical Ubuntu Linux=10.04
Canonical Ubuntu Linux=12.04
Canonical Ubuntu Linux=12.10
Canonical Ubuntu Linux=13.10
Canonical Ubuntu Linux=14.04
F5 BIG-IP Access Policy Manager>=11.1.0<=11.5.1
F5 BIG-IP Advanced Firewall Manager>=11.3.0<=11.5.1
F5 BIG-IP Analytics>=11.1.0<=11.5.1
F5 Big-ip Application Acceleration Manager>=11.4.0<=11.5.1
F5 BIG-IP Application Security Manager>=11.1.0<=11.5.1
F5 Big-ip Edge Gateway>=11.1.0<=11.3.0
F5 Big-ip Global Traffic Manager>=11.1.0<=11.5.1
F5 Big-ip Link Controller>=11.1.0<=11.5.1
F5 Big-ip Local Traffic Manager>=11.1.0<=11.5.1
F5 Big-ip Policy Enforcement Manager>=11.3.0<=11.5.1
F5 Big-ip Protocol Security Module>=11.1.0<=11.4.1
F5 Big-ip Wan Optimization Manager>=11.1.0<=11.3.0
F5 Big-ip Webaccelerator>=11.1.0<=11.3.0
F5 Big-iq Application Delivery Controller=4.5.0
F5 BIG-IQ Centralized Management=4.6.0
F5 BIG-IQ Cloud>=4.0.0<=4.5.0
F5 Big-iq Cloud And Orchestration=1.0.0
F5 Big-iq Device>=4.2.0<=4.5.0
F5 Big-iq Security>=4.0.0<=4.5.0
F5 Enterprise Manager>=3.1.0<=3.1.1
Linux Linux kernel>2.6.31<3.2.59
Linux Linux kernel>=3.3<3.4.91
Linux Linux kernel>=3.5<3.10.40
Linux Linux kernel>=3.11<3.12.20
Linux Linux kernel>=3.13<3.14.4
Linux Linux kernel=2.6.31
Linux Linux kernel=2.6.31-rc3
Linux Linux kernel=2.6.31-rc4
Linux Linux kernel=2.6.31-rc5
Linux Linux kernel=2.6.31-rc6
Linux Linux kernel=2.6.31-rc7
Linux Linux kernel=2.6.31-rc8
Linux Linux kernel=2.6.31-rc9
Linux kernel
debian/linux
5.10.223-1
6.1.106-3
6.1.99-1
6.10.9-1

Remedy

https://bugzilla.redhat.com/show_bug.cgi?id=1094232

Remedy

https://github.com/torvalds/linux/commit/4291086b1f081b869c6d79e5b7441633dc3ace00

Remedy

The impacted product is end-of-life and should be disconnected if still in use.

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