PT-2009-5086 · Linux · Linux Kernel

Kees Cook + 1 · Published 2009-08-14 · Updated 2017-08-17 · CVE-2009-2691

Positive Technologies (AI Summary)

CVSS v2.0

2.1

Low

Base vector

AV:L/AC:L/Au:N/C:P/I:N/A:N

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 2.6.30.4

Description The issue allows local users to read maps and smaps files under proc/ via vectors related to ELF loading, a setuid process, and a race condition. This is due to a problem in the mm for maps function in fs/proc/base.c.

Recommendations For Linux kernel versions prior to 2.6.30.4, consider upgrading to a version that contains a fix for this issue to prevent unauthorized access to sensitive files.

Fix

Information Disclosure

Weakness Enumeration

CWE-200

Related Identifiers

CVE-2009-2691

DSA-2005-1

RHSA-2009:1540

Affected Products

Linux Kernel

References · 18

• http://marc.info/?l=linux-kernel&m=124718946021193 · Patch
• https://rhn.redhat.com/errata/RHSA-2009-1540.html · Vendor Advisory
• http://secunia.com/advisories/36265 · Vendor Advisory
• https://redhat.com/archives/fedora-package-announce/2009-August/msg01256.html · Vendor Advisory
• http://lkml.org/lkml/2009/6/23/653 · Patch
• http://debian.org/security/2010/dsa-2005 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2009-2691 · Security Note
• http://marc.info/?l=linux-kernel&m=124718949821250 · Patch
• http://vupen.com/english/advisories/2009/2246 · Vendor Advisory
• http://lkml.org/lkml/2009/6/23/652 · Note
• http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=13f0feafa6b8aead57a2a328e2fca6a5828bf286 · Note
• http://openwall.com/lists/oss-security/2009/08/11/1 · Note
• https://bugzilla.redhat.com/show_bug.cgi?id=516171 · Note
• http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=00f89d218523b9bf6b522349c039d5ac80aa536d · Note
• https://exchange.xforce.ibmcloud.com/vulnerabilities/52401 · Note