Quantum Secular Labs / Blog / Advisories

CVE-2009-0771: Mozilla Firefox: Memory corruption

CVE-2009-0771 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

The layout engine in Mozilla Firefox before 3.0.7, Thunderbird before 2.0.0.21, and SeaMonkey 1.1.15 allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via certain vectors that trigger memory corruption and assertion failures.

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.

Affected products

  • Mozilla Firefox: up to and including 3.0.6; 1.0; 1.0.1; 1.0.2; 1.0.3; 1.0.4; 1.0.5; 1.0.6; 1.0.7; 1.0.8; 1.5; 1.5.0.1
  • Mozilla Seamonkey: up to and including 1.1.14; 1.0; 1.0.1; 1.0.2; 1.0.3; 1.0.5; 1.0.6; 1.0.7; 1.0.8; 1.0.9; 1.1; 1.1 alpha
  • Mozilla Thunderbird: up to and including 2.0.0.20; 2.0.0.0; 2.0.0.4; 2.0.0.5; 2.0.0.6; 2.0.0.9; 2.0.0.12; 2.0.0.14; 2.0.0.16; 2.0.0.17; 2.0.0.18; 2.0.0.19

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