oss-security - Integer overflow in libtar (<= 1.2.19)

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Message-ID: <52562EB5.4070105@redhat.com>
Date: Thu, 10 Oct 2013 10:06:05 +0530
From: Huzaifa Sidhpurwala <huzaifas@...hat.com>
To: oss-security@...ts.openwall.com
CC: timo.warns@...il.com, cdfrey@...rsquare.net
Subject: Integer overflow in libtar (<= 1.2.19)

Hi All,

Forwarding information from the linux-distros list to oss-sec, since
the issue is public now

Details:

An integer overflow vulnerability was identified in libtar 1.2.19 (and
olders) that can possibly be exploited for arbitrary code execution when
extracting a specially crafted tar file.

A coordinated release date (CRD) of October 9th has been agreed with
Chris Frey (libtar developer).

This issue is assigned CVE-2013-4397.
This issue is fixed in libtar-1.2.20

Reference:

Upstream patch:
http://repo.or.cz/w/libtar.git/commit/45448e8bae671c2f7e80b860ae0fc0cedf2bdc04

Announcement: This is an announcement about the release on
libtar list, but strangely i cant access the list archives.
(i am subscribed to the mailing list though)

Red Hat bugzilla:
https://bugzilla.redhat.com/show_bug.cgi?id=1014492

-- 
Huzaifa Sidhpurwala / Red Hat Security Response Team

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