GLSA 201006-15: XEmacs: User-assisted execution of arbitrary code

http://security.gentoo.org/

Severity:	normal
Title:	XEmacs: User-assisted execution of arbitrary code
Date:	06/03/2010
Bugs:	#275397
ID:	201006-15

Synopsis

Multiple integer overflow errors in XEmacs might allow remote, user-assisted attackers to execute arbitrary code.

Background

XEmacs is a highly extensible and customizable text editor.

Affected packages

Package	Vulnerable	Unaffected	Architecture(s)
app-editors/xemacs	< 21.4.22-r1	>= 21.4.22-r1	All supported architectures

Description

Tielei Wang reported multiple integer overflow vulnerabilities in the tiff_instantiate(), png_instantiate() and jpeg_instantiate() functions in glyphs-eimage.c, all possibly leading to heap-based buffer overflows.

Impact

A remote attacker could entice a user to open a specially crafted TIFF, JPEG or PNG file using XEmacs, possibly resulting in the remote execution of arbitrary code with the privileges of the user running the application, or a Denial of Service condition.

Workaround

There is no known workaround at this time.

Resolution

All XEmacs users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=app-editors/xemacs-21.4.22-r1"

NOTE: This is a legacy GLSA. Updates for all affected architectures are available since July 26, 2009. It is likely that your system is already no longer affected by this issue.

References

CVE-2009-2688

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-201006-15.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.