GLSA 200505-07: libTIFF: Buffer overflow

http://security.gentoo.org/

Severity:	normal
Title:	libTIFF: Buffer overflow
Date:	05/10/2005
Bugs:	#91584
ID:	200505-07

Synopsis

The libTIFF library is vulnerable to a buffer overflow, potentially resulting in the execution of arbitrary code.

Background

libTIFF provides support for reading and manipulating TIFF (Tag Image File Format) images.

Affected packages

Package	Vulnerable	Unaffected	Architecture(s)
media-libs/tiff	< 3.7.2	>= 3.7.2	All supported architectures

Description

Tavis Ormandy of the Gentoo Linux Security Audit Team discovered a stack based buffer overflow in the libTIFF library when reading a TIFF image with a malformed BitsPerSample tag.

Impact

Successful exploitation would require the victim to open a specially crafted TIFF image, resulting in the execution of arbitrary code.

Workaround

There is no known workaround at this time.

Resolution

All libTIFF users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=media-libs/tiff-3.7.2"

References

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200505-07.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.