CVE-2010-3774

Severity: medium (CVSS 4.3 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.6% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2010-12-10 · updated 2026-06-16
Weakness: CWE-20

Description

The NS_SecurityCompareURIs function in netwerk/base/public/nsNetUtil.h in Mozilla Firefox before 3.5.16 and 3.6.x before 3.6.13, and SeaMonkey before 2.0.11, does not properly handle (1) about:neterror and (2) about:certerror pages, which allows remote attackers to spoof the location bar via a crafted web site.

Affected products

Mozilla Firefox: through 3.5.15; 3.6, 3.6.2, 3.6.3, 3.6.4, 3.6.6, 3.6.7 (+111)
Mozilla Seamonkey: through 2.0.10; 1.0, 1.0-alpha, 1.0-beta, 1.0.1, 1.0.2, 1.0.3 (+48)

References

http://lists.fedoraproject.org/pipermail/package-announce/2010-December/052022.html
http://lists.fedoraproject.org/pipermail/package-announce/2010-December/052032.html
http://lists.fedoraproject.org/pipermail/package-announce/2010-December/052502.html
http://lists.fedoraproject.org/pipermail/package-announce/2010-December/052504.html
http://lists.opensuse.org/opensuse-security-announce/2011-01/msg00002.html
http://secunia.com/advisories/42716
http://secunia.com/advisories/42818
http://support.avaya.com/css/P8/documents/100124650
http://www.mandriva.com/security/advisories?name=MDVSA-2010:251
http://www.mozilla.org/security/announce/2010/mfsa2010-83.html
http://www.redhat.com/support/errata/RHSA-2010-0966.html
http://www.securitytracker.com/id?1024850

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