CVE-2015-2733

Severity: critical (CVSS 10.0 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 6.1% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2015-07-06 · updated 2026-06-17

Description

Use-after-free vulnerability in the CanonicalizeXPCOMParticipant function in Mozilla Firefox before 39.0 and Firefox ESR 31.x before 31.8 and 38.x before 38.1 allows remote attackers to execute arbitrary code via vectors involving attachment of an XMLHttpRequest object to a dedicated worker.

Affected products

Mozilla Firefox: through 38.1.0; 31.0, 31.1.0, 31.1.1, 31.3.0, 31.5.1, 31.5.2 (+2)
Mozilla Firefox ESR: 31.1, 31.2, 31.3, 31.4, 31.5, 31.6.0 (+1)
Novell Suse Linux Enterprise Desktop: 11-sp4, 12.0
Novell Suse Linux Enterprise Server: 12.0
Oracle Corporation Solaris Operating System: 11.3

References

http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00025.html
http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00031.html
http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00033.html
http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00034.html
http://lists.opensuse.org/opensuse-security-announce/2015-08/msg00021.html
http://rhn.redhat.com/errata/RHSA-2015-1207.html
http://www.mozilla.org/security/announce/2015/mfsa2015-65.html
http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html
http://www.oracle.com/technetwork/topics/security/bulletinoct2015-2511968.html
http://www.securityfocus.com/bid/75541
http://www.securitytracker.com/id/1032783
http://www.securitytracker.com/id/1032784

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