CVE-2015-4484

Severity: medium (CVSS 5.0 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 3.6% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2015-08-16 · updated 2026-06-17
Weakness: CWE-119

Description

The js::jit::AssemblerX86Shared::lock_addl function in the JavaScript implementation in Mozilla Firefox before 40.0 and Firefox ESR 38.x before 38.2 allows remote attackers to cause a denial of service (application crash) by leveraging the use of shared memory and accessing (1) an Atomics object or (2) a SharedArrayBuffer object.

Affected products

Canonical Ubuntu Linux: 12.04, 14.04, 15.04
Mozilla Firefox: through 39.0.3; 38.0, 38.0.1, 38.0.5, 38.1.0
Opensuse: 13.1, 13.2
Oracle Corporation Solaris Operating System: 11.3

References

http://lists.opensuse.org/opensuse-security-announce/2015-08/msg00014.html
http://lists.opensuse.org/opensuse-security-announce/2015-08/msg00015.html
http://lists.opensuse.org/opensuse-security-announce/2015-08/msg00021.html
http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00016.html
http://lists.opensuse.org/opensuse-security-announce/2015-11/msg00025.html
http://lists.opensuse.org/opensuse-updates/2015-08/msg00030.html
http://lists.opensuse.org/opensuse-updates/2015-08/msg00031.html
http://rhn.redhat.com/errata/RHSA-2015-1586.html
http://www.debian.org/security/2015/dsa-3333
http://www.mozilla.org/security/announce/2015/mfsa2015-87.html
http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html
http://www.securitytracker.com/id/1033247

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