RHEL 6 : libcap (RHSA-2011:1694)

Medium Nessus Plugin ID 57020


The remote Red Hat host is missing one or more security updates.


Updated libcap packages that fix one security issue and one bug are now available for Red Hat Enterprise Linux 6.

The Red Hat Security Response Team has rated this update as having low security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link in the References section.

The libcap packages provide a library and tools for getting and setting POSIX capabilities.

It was found that capsh did not change into the new root when using the '--chroot' option. An application started via the 'capsh --chroot' command could use this flaw to escape the chroot restrictions.

This update also fixes the following bug :

* Previously, the libcap packages did not contain the capsh(1) manual page. With this update, the capsh(1) manual page is included.

All libcap users are advised to upgrade to these updated packages, which contain backported patches to correct these issues.


Update the affected libcap, libcap-debuginfo and / or libcap-devel packages.

See Also



Plugin Details

Severity: Medium

ID: 57020

File Name: redhat-RHSA-2011-1694.nasl

Version: $Revision: 1.14 $

Type: local

Agent: unix

Published: 2011/12/06

Modified: 2017/01/04

Dependencies: 12634

Risk Information

Risk Factor: Medium


Base Score: 4.6

Temporal Score: 3.4

Vector: CVSS2#AV:L/AC:L/Au:N/C:P/I:P/A:P

Temporal Vector: CVSS2#E:U/RL:OF/RC:C

Vulnerability Information

CPE: p-cpe:/a:redhat:enterprise_linux:libcap, p-cpe:/a:redhat:enterprise_linux:libcap-debuginfo, p-cpe:/a:redhat:enterprise_linux:libcap-devel, cpe:/o:redhat:enterprise_linux:6

Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list, Host/cpu

Exploit Available: false

Exploit Ease: No known exploits are available

Patch Publication Date: 2011/12/06

Reference Information

CVE: CVE-2011-4099

BID: 50488

OSVDB: 103055

RHSA: 2011:1694