GLSA 200607-03: libTIFF: Multiple buffer overflows

http://security.gentoo.org/

Severity:	normal
Title:	libTIFF: Multiple buffer overflows
Date:	07/09/2006
Bugs:	#135881
ID:	200607-03

Synopsis

libTIFF contains buffer overflows that could result in arbitrary code execution.

Background

libTIFF provides support for reading and manipulating TIFF images.

Affected packages

Package	Vulnerable	Unaffected	Architecture(s)
media-libs/tiff	< 3.8.2-r1	>= 3.8.2-r1	All supported architectures

Description

A buffer overflow has been found in the t2p_write_pdf_string function in tiff2pdf, which can been triggered with a TIFF file containing a DocumentName tag with UTF-8 characters. An additional buffer overflow has been found in the handling of the parameters in tiffsplit.

Impact

A remote attacker could entice a user to load a specially crafted TIFF file, resulting in the possible 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-3.8.2-r1"

References

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200607-03.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.