Access Restriction Bypass Affecting policycoreutils-sandbox package, versions <0:2.0.83-19.8.el6_0


Severity

Recommended
0.0
high
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.37% (29th percentile)

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  • Snyk IDSNYK-RHEL6-POLICYCOREUTILSSANDBOX-1426186
  • published26 Jul 2021
  • disclosed22 Feb 2011

Introduced: 22 Feb 2011

CVE-2011-1011  (opens in a new tab)
CWE-264  (opens in a new tab)

How to fix?

Upgrade RHEL:6 policycoreutils-sandbox to version 0:2.0.83-19.8.el6_0 or higher.
This issue was patched in RHSA-2011:0414.

NVD Description

Note: Versions mentioned in the description apply only to the upstream policycoreutils-sandbox package and not the policycoreutils-sandbox package as distributed by RHEL. See How to fix? for RHEL:6 relevant fixed versions and status.

The seunshare_mount function in sandbox/seunshare.c in seunshare in certain Red Hat packages of policycoreutils 2.0.83 and earlier in Red Hat Enterprise Linux (RHEL) 6 and earlier, and Fedora 14 and earlier, mounts a new directory on top of /tmp without assigning root ownership and the sticky bit to this new directory, which allows local users to replace or delete arbitrary /tmp files, and consequently cause a denial of service or possibly gain privileges, by running a setuid application that relies on /tmp, as demonstrated by the ksu application.

CVSS Base Scores

version 3.1