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libarchive does not properly terminate loop

Vulnerability Note VU#970849

Original Release Date: 2008-03-20 | Last Revised: 2008-03-20

Overview

libarchive contains a vulnerability that may allow an attacker to cause a denial of service.

Description

The libarchive library provides an interface for reading and writing archive files.

There is a vulnerability in libarchive that occurs when it parses the pax interchange format. If an archive prematurely ends within a pax extension, libarchive may enter an infinite loop.

Impact

A remote, unauthenitcated attacker may be able to cause a denial of service condition.

Solution

Upgrade
Multiple operating system vendors have released an update to address this issue. Administrators should the systems affected portion of this document for more information.

Vendor Information

970849
 
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Debian GNU/Linux Affected

Updated:  March 20, 2008

Status

Affected

Vendor Statement

We have not received a statement from the vendor.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

See http://www.debian.org/security/2008/dsa-1455 for more information.

If you have feedback, comments, or additional information about this vulnerability, please send us email.

FreeBSD, Inc. Affected

Updated:  March 20, 2008

Status

Affected

Vendor Statement

We have not received a statement from the vendor.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

See http://security.freebsd.org/advisories/FreeBSD-SA-07:05.libarchive.asc for more information.

If you have feedback, comments, or additional information about this vulnerability, please send us email.

Gentoo Linux Affected

Updated:  March 20, 2008

Status

Affected

Vendor Statement

We have not received a statement from the vendor.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

See http://www.gentoo.org/security/en/glsa/glsa-200708-03.xml for more information.

If you have feedback, comments, or additional information about this vulnerability, please send us email.

SUSE Linux Affected

Updated:  March 20, 2008

Status

Affected

Vendor Statement

We have not received a statement from the vendor.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

See http://www.novell.com/linux/security/advisories/2007_15_sr.html for more information.

If you have feedback, comments, or additional information about this vulnerability, please send us email.


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References

Acknowledgements

Theanks to CERT-FI and CPNI for information that was used in this report.

This document was written by Ryan Giobbi.

Other Information

CVE IDs: CVE-2007-3644
Severity Metric: 1.35
Date Public: 2007-07-12
Date First Published: 2008-03-20
Date Last Updated: 2008-03-20 20:00 UTC
Document Revision: 7

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