Opera: Two remote code execution vulnerabilities

1. Gentoo Linux Security Advisory

Advisory Reference	GLSA 200701-08 / opera
Release Date	January 12, 2007
Latest Revision	January 12, 2007: 01
Impact	normal
Exploitable	remote

Package	Vulnerable versions	Unaffected versions	Architecture(s)
www-client/opera	< 9.10	>= 9.10	All supported architectures

Related bugreports: #160369

Synopsis

Two vulnerabilities may allow the execution of arbitrary code.

2. Impact Information

Background

Opera is a multi-platform web browser.

Description

Christoph Deal discovered that JPEG files with a specially crafted DHT marker can be exploited to cause a heap overflow. Furthermore, an anonymous person discovered that Opera does not correctly handle objects passed to the "createSVGTransformFromMatrix()" function.

Impact

An attacker could potentially exploit the vulnerabilities to execute arbitrary code with the privileges of the user running Opera by enticing a victim to open a specially crafted JPEG file or a website containing malicious JavaScript code.

3. Resolution Information

Workaround

The vendor recommends disabling JavaScript to avoid the "createSVGTransformFromMatrix" vulnerability. There is no known workaround for the other vulnerability.

Resolution

All Opera users should update to the latest version:

Code Listing 3.1: Resolution

# emerge --sync
# emerge --ask --oneshot --verbose ">=www-client/opera-9.10"

4. References

Page updated January 12, 2007

Summary: This is a Gentoo Linux Security Advisory

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