CVE-2011-2371

Severity: critical (CVSS 10.0 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 75.7% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2011-06-30 · updated 2026-06-16
Weakness: CWE-189

Description

Integer overflow in the Array.reduceRight method in Mozilla Firefox before 3.6.18 and 4.x through 4.0.1, Thunderbird before 3.1.11, and SeaMonkey through 2.0.14 allows remote attackers to execute arbitrary code via vectors involving a long JavaScript Array object.

Affected products

Mozilla Firefox: through 3.6.17; 1.0, 1.0-preview_release, 1.0.1, 1.0.2, 1.0.3, 1.0.4 (+115)
Mozilla Seamonkey: 1.0, 1.0-alpha, 1.0-beta, 1.0.1, 1.0.2, 1.0.3 (+53)
Mozilla Thunderbird: through 3.1.10; 0.1, 0.2, 0.3, 0.4, 0.5, 0.6 (+77)

References

http://lists.opensuse.org/opensuse-security-announce/2011-07/msg00001.html
http://secunia.com/advisories/45002
http://securityreason.com/securityalert/8472
http://support.avaya.com/css/P8/documents/100144854
http://support.avaya.com/css/P8/documents/100145333
http://www.debian.org/security/2011/dsa-2268
http://www.debian.org/security/2011/dsa-2269
http://www.debian.org/security/2011/dsa-2273
http://www.mandriva.com/security/advisories?name=MDVSA-2011:111
http://www.mozilla.org/security/announce/2011/mfsa2011-22.html
http://www.redhat.com/support/errata/RHSA-2011-0885.html
http://www.redhat.com/support/errata/RHSA-2011-0887.html

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