Quantum Secular Labs / Blog / Advisories

CVE-2014-1544: Mozilla Firefox: Use after free

CVE-2014-1544 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 CERT_DestroyCertificate function in libnss3.so in Mozilla Network Security Services (NSS) 3.x, as used in Firefox before 31.0, Firefox ESR 24.x before 24.7, and Thunderbird before 24.7, allows remote attackers to execute arbitrary code via vectors that trigger certain improper removal of an NSSCertificate structure from a trust domain.

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 30.0; 24.0; 24.0.1; 24.0.2; 24.1.0; 24.1.1
  • Mozilla Firefox Esr: 24.2; 24.3; 24.4; 24.5; 24.6
  • Mozilla Network Security Services: 3.2; 3.2.1; 3.3; 3.3.1; 3.3.2; 3.4; 3.4.1; 3.4.2; 3.5; 3.6; 3.6.1; 3.7
  • Mozilla Thunderbird: up to and including 24.6; 24.0; 24.0.1; 24.1; 24.1.1; 24.2; 24.3; 24.4; 24.5

References