CVE-2009-0356

Severity: medium (CVSS 5.1 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 3.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2009-02-04 · updated 2026-06-16
Weakness: CWE-59

Description

Mozilla Firefox before 3.0.6 and SeaMonkey do not block links to the (1) about:plugins and (2) about:config URIs from .desktop files, which allows user-assisted remote attackers to bypass the Same Origin Policy and execute arbitrary code with chrome privileges via vectors involving the URL field in a Desktop Entry section of a .desktop file, related to representation of about: URIs as jar:file:// URIs. NOTE: this issue exists because of an incomplete fix for CVE-2008-4582.

Affected products

Mozilla Firefox: through 3.0.5; 0.1, 0.2, 0.3, 0.4, 0.5, 0.6 (+85)

References

http://lists.opensuse.org/opensuse-security-announce/2009-02/msg00001.html
http://rhn.redhat.com/errata/RHSA-2009-0256.html
http://secunia.com/advisories/33799
http://secunia.com/advisories/33809
http://secunia.com/advisories/33831
http://secunia.com/advisories/33841
http://secunia.com/advisories/33846
http://support.avaya.com/elmodocs2/security/ASA-2009-040.htm
http://www.mandriva.com/security/advisories?name=MDVSA-2009:044
http://www.mozilla.org/security/announce/2009/mfsa2009-04.html
http://www.securityfocus.com/bid/33598
http://www.securitytracker.com/id?1021666

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