GLSA 200506-06: libextractor: Multiple overflow vulnerabilities

http://security.gentoo.org/

Severity:	normal
Title:	libextractor: Multiple overflow vulnerabilities
Date:	06/09/2005
Bugs:	#79704
ID:	200506-06

Synopsis

libextractor is affected by several overflow vulnerabilities in the PDF, Real and PNG extractors, making it vulnerable to execution of arbitrary code.

Background

libextractor is a library used to extract meta-data from files. It makes use of Xpdf code to extract information from PDF files.

Affected packages

Package	Vulnerable	Unaffected	Architecture(s)
media-libs/libextractor	< 0.5.0	>= 0.5.0	All supported architectures

Description

Xpdf is vulnerable to multiple overflows, as described in GLSA 200501-28. Also, integer overflows were discovered in Real and PNG extractors.

Impact

An attacker could design malicious PDF, PNG or Real files which, when processed by an application making use of libextractor, would result in the execution of arbitrary code with the rights of the user running the application.

Workaround

There is no known workaround at this time.

Resolution

All libextractor users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=media-libs/libextractor-0.5.0"

References

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200506-06.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@gentoo.org or alternatively, you may file a bug at https://bugs.gentoo.org.