CVE-2015-0820

Severity: low (CVSS 2.6 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.7% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2015-02-25 · updated 2026-06-17
Weakness: CWE-284

Description

Mozilla Firefox before 36.0 does not properly restrict transitions of JavaScript objects from a non-extensible state to an extensible state, which allows remote attackers to bypass a Caja Compiler sandbox protection mechanism or a Secure EcmaScript sandbox protection mechanism via a crafted web site.

Affected products

Canonical Ubuntu Linux: 12.04, 14.04, 14.10
Mozilla Firefox: through 35.0.1; 0.1, 0.2, 0.3, 0.4, 0.5, 0.6 (+225)
Opensuse: 13.1, 13.2

References

http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00000.html
http://lists.opensuse.org/opensuse-updates/2015-03/msg00067.html
http://www.mozilla.org/security/announce/2015/mfsa2015-27.html
http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html
http://www.securityfocus.com/bid/72757
http://www.ubuntu.com/usn/USN-2505-1
https://bugzilla.mozilla.org/show_bug.cgi?id=1125389
https://security.gentoo.org/glsa/201504-01
http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00000.html
http://lists.opensuse.org/opensuse-updates/2015-03/msg00067.html
http://www.mozilla.org/security/announce/2015/mfsa2015-27.html
http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html

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