CVE-2013-2636

Severity: low (CVSS 1.9 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2013-03-22 · updated 2026-06-16
Weakness: CWE-399

Description

net/bridge/br_mdb.c in the Linux kernel before 3.8.4 does not initialize certain structures, which allows local users to obtain sensitive information from kernel memory via a crafted application.

Affected products

Linux kernel: through 3.8.3; 3.8.0, 3.8.1, 3.8.2

References

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=c085c49920b2f900ba716b4ca1c1a55ece9872cc
http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.8.4
http://www.openwall.com/lists/oss-security/2013/03/20/1
https://bugzilla.redhat.com/show_bug.cgi?id=923652
https://github.com/torvalds/linux/commit/c085c49920b2f900ba716b4ca1c1a55ece9872cc
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=c085c49920b2f900ba716b4ca1c1a55ece9872cc
http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.8.4
http://www.openwall.com/lists/oss-security/2013/03/20/1
https://bugzilla.redhat.com/show_bug.cgi?id=923652
https://github.com/torvalds/linux/commit/c085c49920b2f900ba716b4ca1c1a55ece9872cc

Get alerted when CVE-2013-2636 or the next vulnerability affects your stack