CVE-2008-5021

Name: CVE-2008-5021
Creator: NVD / NIST
Published: 2008-11-13T11:30:01.377+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 3.63%

Last modified Jun 16, 2026

CVE-2008-5021 is a vulnerability of currently unknown severity. nsFrameManager in Firefox 3.x before 3.0.4, Firefox 2.x before 2.0.0.18, Thunderbird 2.x before 2.0.0.18, and SeaMonkey 1.x before 1.1.13 allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code by modifying properties of a file input element while it is still being initialized, then using the blur method to access uninitialized memory.. EPSS estimates a 3.63% chance of exploitation in the next 30 days.

Description

nsFrameManager in Firefox 3.x before 3.0.4, Firefox 2.x before 2.0.0.18, Thunderbird 2.x before 2.0.0.18, and SeaMonkey 1.x before 1.1.13 allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code by modifying properties of a file input element while it is still being initialized, then using the blur method to access uninitialized memory.

Metrics

EPSS Probability

3.63%

88.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-362

Affected Software

Vendor	Product	Versions	Update
Mozilla	Firefox	>= 2.0, < 2.0.0.18	—
Mozilla	Firefox	>= 3.0, < 3.0.4	—
Mozilla	Seamonkey	>= 1.0, < 1.1.13	—
Mozilla	Thunderbird	>= 2.0, < 2.0.0.18	—
Debian	Debian Linux	4.0	—
Canonical	Ubuntu Linux	6.06	—
Canonical	Ubuntu Linux	7.10	—
Canonical	Ubuntu Linux	8.04	—
Canonical	Ubuntu Linux	8.10	—
Fedoraproject	Fedora	8	—
Fedoraproject	Fedora	9	—
Suse	Linux Enterprise Debuginfo	10	Sp2
Novell	Linux Desktop	9	—
Novell	Open Enterprise Server	All versions	—
Opensuse	Opensuse	10.2	—
Opensuse	Opensuse	10.3	—
Opensuse	Opensuse	11.0	—
Suse	Linux Enterprise Desktop	10	—
Suse	Linux Enterprise Server	9	—
Suse	Linux Enterprise Server	10	Sp1
Suse	Linux Enterprise Software Development Kit	10	Sp1

References

http://lists.opensuse.org/opensuse-security-announce/2008-11/msg00004.htmlMailing List, Third Party Advisory
http://secunia.com/advisories/32684Broken Link, Third Party Advisory
http://secunia.com/advisories/32693Broken Link, Third Party Advisory
http://secunia.com/advisories/32694Broken Link, Third Party Advisory
http://secunia.com/advisories/32695Broken Link, Third Party Advisory
http://secunia.com/advisories/32713Broken Link, Third Party Advisory
http://secunia.com/advisories/32714Broken Link, Third Party Advisory
http://secunia.com/advisories/32715Broken Link, Third Party Advisory
http://secunia.com/advisories/32721Broken Link, Third Party Advisory
http://secunia.com/advisories/32778Broken Link, Third Party Advisory
http://secunia.com/advisories/32798Broken Link, Third Party Advisory
http://secunia.com/advisories/32845Broken Link, Third Party Advisory
http://secunia.com/advisories/32853Broken Link, Third Party Advisory
http://secunia.com/advisories/33433Broken Link, Third Party Advisory
http://secunia.com/advisories/33434Broken Link, Third Party Advisory
http://secunia.com/advisories/34501Broken Link, Third Party Advisory
http://sunsolve.sun.com/search/document.do?assetkey=1-26-256408-1Broken Link
http://ubuntu.com/usn/usn-667-1Third Party Advisory
http://www.debian.org/security/2008/dsa-1669Mailing List, Third Party Advisory
http://www.debian.org/security/2008/dsa-1671Mailing List, Third Party Advisory
http://www.debian.org/security/2009/dsa-1696Mailing List, Third Party Advisory
http://www.debian.org/security/2009/dsa-1697Mailing List, Third Party Advisory
http://www.mandriva.com/security/advisories?name=MDVSA-2008:228Broken Link, Third Party Advisory
http://www.mandriva.com/security/advisories?name=MDVSA-2008:230Broken Link, Third Party Advisory
http://www.mandriva.com/security/advisories?name=MDVSA-2008:235Broken Link, Third Party Advisory
http://www.mozilla.org/security/announce/2008/mfsa2008-55.htmlVendor Advisory
http://www.redhat.com/support/errata/RHSA-2008-0976.htmlBroken Link, Third Party Advisory
http://www.redhat.com/support/errata/RHSA-2008-0977.htmlBroken Link, Third Party Advisory
http://www.redhat.com/support/errata/RHSA-2008-0978.htmlBroken Link, Third Party Advisory
http://www.securityfocus.com/bid/32281Broken Link, Third Party Advisory, VDB Entry
http://www.securitytracker.com/id?1021186Broken Link, Third Party Advisory, VDB Entry
http://www.us-cert.gov/cas/techalerts/TA08-319A.htmlThird Party Advisory, US Government Resource
http://www.vupen.com/english/advisories/2008/3146Broken Link, Third Party Advisory
http://www.vupen.com/english/advisories/2009/0977Broken Link, Third Party Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=460002Issue Tracking, Vendor Advisory
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9642Broken Link, Third Party Advisory
https://www.redhat.com/archives/fedora-package-announce/2008-November/msg00366.htmlMailing List, Third Party Advisory
https://www.redhat.com/archives/fedora-package-announce/2008-November/msg00385.htmlMailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2008-11/msg00004.htmlMailing List, Third Party Advisory
http://secunia.com/advisories/32684Broken Link, Third Party Advisory
http://secunia.com/advisories/32693Broken Link, Third Party Advisory
http://secunia.com/advisories/32694Broken Link, Third Party Advisory
http://secunia.com/advisories/32695Broken Link, Third Party Advisory
http://secunia.com/advisories/32713Broken Link, Third Party Advisory
http://secunia.com/advisories/32714Broken Link, Third Party Advisory
http://secunia.com/advisories/32715Broken Link, Third Party Advisory
http://secunia.com/advisories/32721Broken Link, Third Party Advisory
http://secunia.com/advisories/32778Broken Link, Third Party Advisory
http://secunia.com/advisories/32798Broken Link, Third Party Advisory
http://secunia.com/advisories/32845Broken Link, Third Party Advisory
http://secunia.com/advisories/32853Broken Link, Third Party Advisory
http://secunia.com/advisories/33433Broken Link, Third Party Advisory
http://secunia.com/advisories/33434Broken Link, Third Party Advisory
http://secunia.com/advisories/34501Broken Link, Third Party Advisory
http://sunsolve.sun.com/search/document.do?assetkey=1-26-256408-1Broken Link
http://ubuntu.com/usn/usn-667-1Third Party Advisory
http://www.debian.org/security/2008/dsa-1669Mailing List, Third Party Advisory
http://www.debian.org/security/2008/dsa-1671Mailing List, Third Party Advisory
http://www.debian.org/security/2009/dsa-1696Mailing List, Third Party Advisory
http://www.debian.org/security/2009/dsa-1697Mailing List, Third Party Advisory
http://www.mandriva.com/security/advisories?name=MDVSA-2008:228Broken Link, Third Party Advisory
http://www.mandriva.com/security/advisories?name=MDVSA-2008:230Broken Link, Third Party Advisory
http://www.mandriva.com/security/advisories?name=MDVSA-2008:235Broken Link, Third Party Advisory
http://www.mozilla.org/security/announce/2008/mfsa2008-55.htmlVendor Advisory
http://www.redhat.com/support/errata/RHSA-2008-0976.htmlBroken Link, Third Party Advisory
http://www.redhat.com/support/errata/RHSA-2008-0977.htmlBroken Link, Third Party Advisory
http://www.redhat.com/support/errata/RHSA-2008-0978.htmlBroken Link, Third Party Advisory
http://www.securityfocus.com/bid/32281Broken Link, Third Party Advisory, VDB Entry
http://www.securitytracker.com/id?1021186Broken Link, Third Party Advisory, VDB Entry
http://www.us-cert.gov/cas/techalerts/TA08-319A.htmlThird Party Advisory, US Government Resource
http://www.vupen.com/english/advisories/2008/3146Broken Link, Third Party Advisory
http://www.vupen.com/english/advisories/2009/0977Broken Link, Third Party Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=460002Issue Tracking, Vendor Advisory
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9642Broken Link, Third Party Advisory
https://www.redhat.com/archives/fedora-package-announce/2008-November/msg00366.htmlMailing List, Third Party Advisory
https://www.redhat.com/archives/fedora-package-announce/2008-November/msg00385.htmlMailing List, Third Party Advisory

Timeline

Published: Nov 13, 2008
Last Modified: Jun 16, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2008-5021?

How severe is CVE-2008-5021?

Severity scoring for CVE-2008-5021 is pending analysis. The EPSS model estimates a 3.63% probability of exploitation in the next 30 days.

How do I fix CVE-2008-5021?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2008-5021?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST