CVE-2009-2691

Severity: low (CVSS 2.1 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: 2009-08-14 · updated 2026-06-16
Weakness: CWE-200

Description

The mm_for_maps function in fs/proc/base.c in the Linux kernel 2.6.30.4 and earlier allows local users to read (1) maps and (2) smaps files under proc/ via vectors related to ELF loading, a setuid process, and a race condition.

Affected products

Linux kernel: through 2.6.30.4; 2.6.30, 2.6.30-rc1, 2.6.30-rc2, 2.6.30-rc3, 2.6.30-rc5, 2.6.30-rc6 (+3)

References

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=00f89d218523b9bf6b522349c039d5ac80aa536d
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=13f0feafa6b8aead57a2a328e2fca6a5828bf286
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=704b836cbf19e885f8366bccb2e4b0474346c02d
http://lkml.org/lkml/2009/6/23/652
http://lkml.org/lkml/2009/6/23/653
http://marc.info/?l=linux-kernel&m=124718946021193
http://marc.info/?l=linux-kernel&m=124718949821250
http://secunia.com/advisories/36265
http://secunia.com/advisories/36501
http://www.debian.org/security/2010/dsa-2005
http://www.openwall.com/lists/oss-security/2009/08/11/1
http://www.securityfocus.com/bid/36019

Get alerted when CVE-2009-2691 or the next vulnerability affects your stack