Quantum Secular Labs / Blog / Advisories

CVE-2013-1686: Mozilla Firefox: Use after free

CVE-2013-1686 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

Use-after-free vulnerability in the mozilla::ResetDir function in Mozilla Firefox before 22.0, Firefox ESR 17.x before 17.0.7, Thunderbird before 17.0.7, and Thunderbird ESR 17.x before 17.0.7 allows remote attackers to execute arbitrary code or cause a denial of service (heap memory corruption) via unspecified vectors.

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 21.0; 19.0; 19.0.1; 19.0.2; 20.0; 20.0.1; 17.0; 17.0.1; 17.0.2; 17.0.3; 17.0.4; 17.0.5
  • Mozilla Thunderbird: up to and including 17.0.6; 17.0; 17.0.1; 17.0.2; 17.0.3; 17.0.4; 17.0.5
  • Mozilla Thunderbird Esr: 17.0; 17.0.1; 17.0.2; 17.0.3; 17.0.4; 17.0.5; 17.0.6

References