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Category:   Application (Generic)  >   libarchive Vendors:   libarchive
libarchive Buffer Overflow and Use-After Free Bugs Let Remote Users Execute Arbitrary Code
SecurityTracker Alert ID:  1026365
SecurityTracker URL:  http://securitytracker.com/id/1026365
CVE Reference:   CVE-2010-4666, CVE-2011-1777, CVE-2011-1778, CVE-2011-1779   (Links to External Site)
Date:  Dec 1 2011
Impact:   Execution of arbitrary code via network, User access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): prior to 2.8.5
Description:   Several vulnerabilities were reported in libarchive. A remote user can cause arbitrary code to be executed on the target user's system.

A remote user can create a specially crafted archive that, when processed by the target user or application, will execute arbitrary code on the target system. The code will run with the privileges of the target user or application.

A specially crafted CAB file can trigger a buffer overflow [CVE-2010-4666].

Several buffer overflows exist in 'archive_read_support_format_iso9660.c' [CVE-2011-1777].

A buffer overflow exists in the reading of tar archives [CVE-2011-1778].

Some use-after-free bugs exist [CVE-2011-1779].

Impact:   A remote user can create a file that, when processed by the target user or application, will execute arbitrary code on the target user's system.
Solution:   The vendor has issued a fix (2.8.5).
Vendor URL:  code.google.com/p/libarchive/ (Links to External Site)
Cause:   Access control error, Boundary error
Underlying OS:   Linux (Any), UNIX (Any)

Message History:   This archive entry has one or more follow-up message(s) listed below.
Dec 1 2011 (Red Hat Issues Fix) libarchive Buffer Overflow and Use-After Free Bugs Let Remote Users Execute Arbitrary Code   (bugzilla@redhat.com)
Red Hat has issued a fix for Red Hat Enterprise Linux 6.



 Source Message Contents

Date:  Thu, 01 Dec 2011 19:49:39 +0000
Subject:  libarchive


A number of flaws have been corrected in upstream libarchive that have not yet
been included in a public release of libarchive (latest version is 2.8.4).

A buffer overflow at reading bit lengths of huffman code of LZX when reading a
broken CAB file (CVE-2010-4666) [1].

Buffer overflows in various functions related to reading archives (in
archive_read_support_format_iso9660.c) (CVE-2011-1777) [2].

Buffer overflow in reading tar archives (CVE-2011-1778) [3].

Use-after-free bugs (CVE-2011-1779) [4].

[1] http://code.google.com/p/libarchive/source/detail?r=2842
[2] http://code.google.com/p/libarchive/source/detail?r=3158
[3] http://code.google.com/p/libarchive/source/detail?r=3160
[4] http://code.google.com/p/libarchive/source/detail?r=3038


 
 


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