CVE-2015-7221

Severity: critical (CVSS 10.0 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 4.5% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2015-12-16 · updated 2026-06-17
Weakness: CWE-119

Description

Buffer overflow in the nsDeque::GrowCapacity function in xpcom/glue/nsDeque.cpp in Mozilla Firefox before 43.0 might allow remote attackers to cause a denial of service or possibly have unspecified other impact by triggering a deque size change.

Affected products

Fedoraproject Fedora: 22, 23
Mozilla Firefox: through 42.0
openSUSE Leap: 42.1
Opensuse: 13.1, 13.2

References

http://lists.fedoraproject.org/pipermail/package-announce/2015-December/174083.html
http://lists.fedoraproject.org/pipermail/package-announce/2015-December/174253.html
http://lists.opensuse.org/opensuse-updates/2015-12/msg00104.html
http://lists.opensuse.org/opensuse-updates/2016-02/msg00007.html
http://lists.opensuse.org/opensuse-updates/2016-02/msg00008.html
http://www.mozilla.org/security/announce/2015/mfsa2015-144.html
http://www.securityfocus.com/bid/79280
http://www.securitytracker.com/id/1034426
http://www.ubuntu.com/usn/USN-2833-1
https://bugzilla.mozilla.org/show_bug.cgi?id=1199400
https://hg.mozilla.org/mozilla-central/rev/7fd961937687
https://security.gentoo.org/glsa/201512-10

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