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CVE-2012-0470: Mozilla Firefox: Buffer overflow

CVE-2012-0470 has a CVSS v2 base score of 10.0 (the maximum on that scale) and affects Mozilla Firefox. Per its scoring, it can be exploited over the network, without authentication. The scored impact on confidentiality, integrity and availability is the highest available.

Vulnerability description

Heap-based buffer overflow in the nsSVGFEDiffuseLightingElement::LightPixel function in Mozilla Firefox 4.x through 11.0, Firefox ESR 10.x before 10.0.4, Thunderbird 5.0 through 11.0, Thunderbird ESR 10.x before 10.0.4, and SeaMonkey before 2.9 allows remote attackers to cause a denial of service (invalid gfxImageSurface free operation) or possibly execute arbitrary code by leveraging the use of "different number systems."

Severity breakdown

CVSS v2.0 10.0: AV:N/AC:L/Au:N/C:C/I:C/A:C

Access vector: Network. Exploitable remotely over the network.
Access complexity: Low. No special conditions are required.
Authentication: None. No authentication is needed.
Confidentiality impact: Complete. Total information disclosure.
Integrity impact: Complete. Total loss of integrity.
Availability impact: Complete. Total shutdown of the component.

Underlying weakness

CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer

The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary.

Affected products

Mozilla Firefox: 4.0; 4.0 beta1; 4.0 beta10; 4.0 beta11; 4.0 beta12; 4.0 beta2; 4.0 beta3; 4.0 beta4; 4.0 beta5; 4.0 beta6; 4.0 beta7; 4.0 beta8
Mozilla Thunderbird: 5.0; 6.0; 6.0.1; 6.0.2; 7.0; 7.0.1; 8.0; 9.0; 9.0.1; 10.0; 10.0.1; 10.0.2
Mozilla Thunderbird Esr: 10.0; 10.0.1; 10.0.2; 10.0.3; 10.0.4
Mozilla Seamonkey: up to and including 2.9; 1.0; 1.0 alpha; 1.0 beta; 1.0.1; 1.0.2; 1.0.3; 1.0.4; 1.0.5; 1.0.6; 1.0.7; 1.0.8