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Public Date:
844442: CVE-2012-3440 sudo: insecure temporary file use in RPM %postun script

The MITRE CVE dictionary describes this issue as:

A certain Red Hat script for sudo 1.7.2 on Red Hat Enterprise Linux (RHEL) 5 allows local users to overwrite arbitrary files via a symlink attack on the /var/tmp/nsswitch.conf.bak temporary file.

Find out more about CVE-2012-3440 from the MITRE CVE dictionary dictionary and NIST NVD.

CVSS v2 metrics

NOTE: The following CVSS v2 metrics and score provided are preliminary and subject to review.

Base Score 5.6
Base Metrics AV:L/AC:H/Au:N/C:N/I:C/A:C
Access Vector Local
Access Complexity High
Authentication None
Confidentiality Impact None
Integrity Impact Complete
Availability Impact Complete

Find out more about Red Hat support for the Common Vulnerability Scoring System (CVSS).

Red Hat Security Errata

Platform Errata Release Date
Red Hat Enterprise Linux 5 (sudo) RHSA-2012:1149 2012-08-07

Affected Packages State

Platform Package State
Red Hat Enterprise Linux 6 sudo Not affected
Red Hat Enterprise Linux 4 sudo Not affected
Red Hat Enterprise Linux 3 sudo Not affected

Last Modified