[gentoo-announce] [ GLSA 201203-23 ] libzip: Multiple vulnerabilities

[news 28]

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Gentoo Linux Security Advisory GLSA 201203-23

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http://security.gentoo.org/

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Severity: Normal

Title: libzip: Multiple vulnerabilities

Date: March 29, 2012

Bugs: #409117

ID: 201203-23

 

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Synopsis

========

 

Multiple vulnerabilities have been found in libzip, the worst of which

might allow execution of arbitrary code.

 

Background

==========

 

libzip is a library for manipulating zip archives.

 

Affected packages

=================

 

-------------------------------------------------------------------

Package / Vulnerable / Unaffected

-------------------------------------------------------------------

1 dev-libs/libzip < 0.10.1 >= 0.10.1

 

Description

===========

 

Two vulnerabilities have been found in the "_zip_readcdir()" function

in zip_open.c of libzip:

 

* An incorrect loop construct, which could cause a heap-based buffer

overflow (CVE-2012-1162).

* An integer overflow, which may not restrict operations within the

memory buffer (CVE-2012-1163).

 

Impact

======

 

A remote attacker could entice a user to open a specially crafted ZIP

file, possibly resulting in execution of arbitrary code with the

privileges of the process, a Denial of Service condition, or

information leaks.

 

Workaround

==========

 

There is no known workaround at this time.

 

Resolution

==========

 

All libzip users should upgrade to the latest version:

 

# emerge --sync

# emerge --ask --oneshot --verbose ">=dev-libs/libzip-0.10.1"

 

References

==========

 

[ 1 ] CVE-2012-1162

http://nvd.nist.gov/nvd.cfm?cvename=CVE-2012-1162

[ 2 ] CVE-2012-1163

http://nvd.nist.gov/nvd.cfm?cvename=CVE-2012-1163

 

Availability

============

 

This GLSA and any updates to it are available for viewing at

the Gentoo Security Website:

 

http://security.gentoo.org/glsa/glsa-201203-23.xml

 

Concerns?

=========

 

Security is a primary focus of Gentoo Linux and ensuring the

confidentiality and security of our users' machines is of utmost

importance to us. Any security concerns should be addressed to

security ( -at -) gentoo.org or alternatively, you may file a bug at

https://bugs.gentoo.org.

 

License

=======

 

Copyright 2012 Gentoo Foundation, Inc; referenced text

belongs to its owner(s).

 

The contents of this document are licensed under the

Creative Commons - Attribution / Share Alike license.

 

http://creativecommons.org/licenses/by-sa/2.5