PT-2011-1207 · Util Linux · Util-Linux

Vincent Danen · Published 2011-04-10 · Updated 2017-08-17 · CVE-2011-1676

Positive Technologies (AI Summary)

CVSS v2.0

4.6

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions util-linux versions prior to 2.22.2

Description The issue concerns multiple vulnerabilities in the util-linux package that can lead to breaches of confidentiality, integrity, and availability of protected information. These vulnerabilities can be exploited locally. Specifically, in util-linux 2.19 and earlier, the mount function does not remove the /etc/mtab.tmp file after a failed attempt to add a mount entry. This allows local users to cause corruption of the /etc/mtab file through multiple invocations.

Recommendations For versions prior to 2.22.2, update to version 2.22.2 or later to resolve the issue. As a temporary workaround, consider restricting access to the mount function to minimize the risk of exploitation.

Exploit

Fix

Weakness Enumeration

CWE-399

CWE-264

Related Identifiers

BDU:2015-09701

CVE-2011-1676

Affected Products

Util-Linux

References · 24

• 🔥 http://openwall.com/lists/oss-security/2011/03/31/3 · Exploit
• 🔥 https://bugzilla.redhat.com/show_bug.cgi?id=688980 · Exploit
• https://osv.dev/vulnerability/UBUNTU-CVE-2011-1676 · Vendor Advisory
• https://ubuntu.com/security/CVE-2011-1676 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2011-1676 · Security Note
• https://bdu.fstec.ru/vul/2015-09701 · Security Note
• https://cve.org/CVERecord?id=CVE-2011-1676 · Security Note
• http://openwall.com/lists/oss-security/2011/03/14/5 · Note
• http://openwall.com/lists/oss-security/2011/03/05/3 · Note
• http://openwall.com/lists/oss-security/2011/03/04/12 · Note
• http://openwall.com/lists/oss-security/2011/03/07/9 · Note
• http://openwall.com/lists/oss-security/2011/03/14/7 · Note
• http://openwall.com/lists/oss-security/2011/03/05/7 · Note
• http://openwall.com/lists/oss-security/2011/04/01/2 · Note
• http://openwall.com/lists/oss-security/2011/03/15/6 · Note