GLSA 200612-13: libgsf: Buffer overflow

http://security.gentoo.org/

Severity:	normal
Title:	libgsf: Buffer overflow
Date:	12/12/2006
Bugs:	#156693
ID:	200612-13

Synopsis

libgsf improperly allocates memory allowing for a heap overflow and possibly the execution of arbitrary code.

Background

The GNOME Structured File Library is an I/O library that can read and write common file types and handle structured formats that provide file-system-in-a-file semantics.

Affected packages

Package	Vulnerable	Unaffected	Architecture(s)
gnome-extra/libgsf	< 1.14.2	>= 1.14.2	All supported architectures

Description

"infamous41md" has discovered that the "ole_init_info" function may allocate too little memory for storing the contents of an OLE document, resulting in a heap buffer overflow.

Impact

An attacker could entice a user to open a specially crafted OLE document, and possibly execute arbitrary code with the rights of the user opening the document.

Workaround

There is no known workaround at this time.

Resolution

All libgsf users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=gnome-extra/libgsf-1.14.2"

References

CVE-2006-4514

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200612-13.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.