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Debian Security Advisory DSA-2863-1                   security@debian.org
http://www.debian.org/security/                             Luciano Bello
February 18, 2014                      http://www.debian.org/security/faq
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Package        : libtar
Vulnerability  : directory traversal
CVE ID         : CVE-2013-4420
Debian Bug     : 731860

A directory traversal attack was reported against libtar, a C library for
manipulating tar archives. The application does not validate the
filenames inside the tar archive, allowing to extract files in arbitrary
path. An attacker can craft a tar file to override files beyond the
tar_extract_glob and tar_extract_all prefix parameter.

For the oldstable distribution (squeeze), this problem has been fixed in
version 1.2.11-6+deb6u2.

For the stable distribution (wheezy), this problem has been fixed in
version 1.2.16-1+deb7u2.

For the unstable distribution (sid), this problem has been fixed in
version 1.2.20-2.

We recommend that you upgrade your libtar packages.

Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: http://www.debian.org/security/

Mailing list: debian-security-announce@lists.debian.org

Debian: DSA-2863-1: libtar security update

February 18, 2014
A directory traversal attack was reported against libtar, a C library for manipulating tar archives

Summary

A directory traversal attack was reported against libtar, a C library for
manipulating tar archives. The application does not validate the
filenames inside the tar archive, allowing to extract files in arbitrary
path. An attacker can craft a tar file to override files beyond the
tar_extract_glob and tar_extract_all prefix parameter.

For the oldstable distribution (squeeze), this problem has been fixed in
version 1.2.11-6+deb6u2.

For the stable distribution (wheezy), this problem has been fixed in
version 1.2.16-1+deb7u2.

For the unstable distribution (sid), this problem has been fixed in
version 1.2.20-2.

We recommend that you upgrade your libtar packages.

Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: http://www.debian.org/security/

Mailing list: debian-security-announce@lists.debian.org

Severity
Package : libtar
Vulnerability : directory traversal
CVE ID : CVE-2013-4420
Debian Bug : 731860

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