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CVE-2014-1478: Mozilla Firefox: Memory corruption

CVE-2014-1478 has a CVSS v2 base score of 10.0 (the maximum on that scale) and affects Mozilla Firefox, along with 3 other products in NVD’s configuration data. 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

Multiple unspecified vulnerabilities in the browser engine in Mozilla Firefox before 27.0 and SeaMonkey before 2.24 allow remote attackers to cause a denial of service (memory corruption and application crash) or possibly execute arbitrary code via vectors related to the MPostWriteBarrier class in js/src/jit/MIR.h and stack alignment in js/src/jit/AsmJS.cpp in OdinMonkey, and unknown other 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.

Underlying weakness

CWE-787: Out-of-bounds Write

The product writes data past the end, or before the beginning, of the intended buffer.

Affected products

Mozilla Firefox: before 27.0
Mozilla Seamonkey: before 2.24
Canonical Ubuntu Linux: 12.04; 12.10; 13.10
Opensuse: 11.4; 12.3; 13.1
Oracle Solaris: 11.3