RHEL 6 : libtar (RHSA-2013:1418)

Medium Nessus Plugin ID 70387


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


An updated libtar package that fixes one security issue is now available for Red Hat Enterprise Linux 6.

The Red Hat Security Response Team has rated this update as having moderate 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 libtar package contains a C library for manipulating tar archives.
The library supports both the strict POSIX tar format and many of the commonly used GNU extensions.

Two heap-based buffer overflow flaws were found in the way libtar handled certain archives. If a user were tricked into expanding a specially crafted archive, it could cause the libtar executable or an application using libtar to crash or, potentially, execute arbitrary code. (CVE-2013-4397)

Note: This issue only affected 32-bit builds of libtar.

Red Hat would like to thank Timo Warns for reporting this issue.

All libtar users are advised to upgrade to this updated package, which contains a backported patch to correct this issue.


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

See Also



Plugin Details

Severity: Medium

ID: 70387

File Name: redhat-RHSA-2013-1418.nasl

Version: $Revision: 1.8 $

Type: local

Agent: unix

Published: 2013/10/11

Modified: 2017/01/05

Dependencies: 12634

Risk Information

Risk Factor: Medium


Base Score: 6.8

Temporal Score: 5

Vector: CVSS2#AV:N/AC:M/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:libtar, p-cpe:/a:redhat:enterprise_linux:libtar-debuginfo, p-cpe:/a:redhat:enterprise_linux:libtar-devel, cpe:/o:redhat:enterprise_linux:6, cpe:/o:redhat:enterprise_linux:6.4

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: 2013/10/10

Reference Information

CVE: CVE-2013-4397

OSVDB: 98301

RHSA: 2013:1418