CVE-2008-5014

Name: CVE-2008-5014
Creator: NVD / NIST
Published: 2008-11-13T11:30:01.253+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 5.87%

Last modified Jun 16, 2026

CVE-2008-5014 is a vulnerability of currently unknown severity. jslock.cpp in Mozilla Firefox 3.x before 3.0.2, 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 the window.__proto__.__proto__ object in a way that causes a lock on a non-native object, which triggers an assertion failure related to the OBJ_IS_NATIVE function.. EPSS estimates a 5.87% chance of exploitation in the next 30 days.

Description

jslock.cpp in Mozilla Firefox 3.x before 3.0.2, 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 the window.__proto__.__proto__ object in a way that causes a lock on a non-native object, which triggers an assertion failure related to the OBJ_IS_NATIVE function.

Metrics

EPSS Probability

5.87%

92.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-20

Affected Software

Vendor	Product	Versions
Mozilla	Firefox	>= 2.0, < 2.0.0.18
Mozilla	Firefox	>= 3.0, < 3.0.2
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

References

http://lists.opensuse.org/opensuse-security-announce/2008-11/msg00004.htmlThird Party Advisory
http://secunia.com/advisories/32011Third Party Advisory
http://secunia.com/advisories/32684Third Party Advisory
http://secunia.com/advisories/32693Third Party Advisory
http://secunia.com/advisories/32694Third Party Advisory
http://secunia.com/advisories/32695Third Party Advisory
http://secunia.com/advisories/32714Third Party Advisory
http://secunia.com/advisories/32715Third Party Advisory
http://secunia.com/advisories/32721Third Party Advisory
http://secunia.com/advisories/32778Third Party Advisory
http://secunia.com/advisories/32798Third Party Advisory
http://secunia.com/advisories/32845Third Party Advisory
http://secunia.com/advisories/32853Third Party Advisory
http://secunia.com/advisories/33433Third Party Advisory
http://secunia.com/advisories/33434Third Party Advisory
http://secunia.com/advisories/34501Third 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-1669Third Party Advisory
http://www.debian.org/security/2008/dsa-1671Third Party Advisory
http://www.debian.org/security/2009/dsa-1696Third Party Advisory
http://www.debian.org/security/2009/dsa-1697Third Party Advisory
http://www.mandriva.com/security/advisories?name=MDVSA-2008:228Third Party Advisory
http://www.mandriva.com/security/advisories?name=MDVSA-2008:230Third Party Advisory
http://www.mandriva.com/security/advisories?name=MDVSA-2008:235Third Party Advisory
http://www.mozilla.org/security/announce/2008/mfsa2008-50.htmlVendor Advisory
http://www.redhat.com/support/errata/RHSA-2008-0976.htmlThird Party Advisory
http://www.redhat.com/support/errata/RHSA-2008-0977.htmlThird Party Advisory
http://www.redhat.com/support/errata/RHSA-2008-0978.htmlThird Party Advisory
http://www.securityfocus.com/bid/32281Third Party Advisory, VDB Entry
http://www.securitytracker.com/id?1021182Third 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/2008/3146Third Party Advisory
http://www.vupen.com/english/advisories/2009/0977Third Party Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=436741Issue Tracking, Vendor Advisory
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9157Third Party Advisory
https://www.redhat.com/archives/fedora-package-announce/2008-November/msg00366.htmlThird Party Advisory
https://www.redhat.com/archives/fedora-package-announce/2008-November/msg00385.htmlThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2008-11/msg00004.htmlThird Party Advisory
http://secunia.com/advisories/32011Third Party Advisory
http://secunia.com/advisories/32684Third Party Advisory
http://secunia.com/advisories/32693Third Party Advisory
http://secunia.com/advisories/32694Third Party Advisory
http://secunia.com/advisories/32695Third Party Advisory
http://secunia.com/advisories/32714Third Party Advisory
http://secunia.com/advisories/32715Third Party Advisory
http://secunia.com/advisories/32721Third Party Advisory
http://secunia.com/advisories/32778Third Party Advisory
http://secunia.com/advisories/32798Third Party Advisory
http://secunia.com/advisories/32845Third Party Advisory
http://secunia.com/advisories/32853Third Party Advisory
http://secunia.com/advisories/33433Third Party Advisory
http://secunia.com/advisories/33434Third Party Advisory
http://secunia.com/advisories/34501Third 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-1669Third Party Advisory
http://www.debian.org/security/2008/dsa-1671Third Party Advisory
http://www.debian.org/security/2009/dsa-1696Third Party Advisory
http://www.debian.org/security/2009/dsa-1697Third Party Advisory
http://www.mandriva.com/security/advisories?name=MDVSA-2008:228Third Party Advisory
http://www.mandriva.com/security/advisories?name=MDVSA-2008:230Third Party Advisory
http://www.mandriva.com/security/advisories?name=MDVSA-2008:235Third Party Advisory
http://www.mozilla.org/security/announce/2008/mfsa2008-50.htmlVendor Advisory
http://www.redhat.com/support/errata/RHSA-2008-0976.htmlThird Party Advisory
http://www.redhat.com/support/errata/RHSA-2008-0977.htmlThird Party Advisory
http://www.redhat.com/support/errata/RHSA-2008-0978.htmlThird Party Advisory
http://www.securityfocus.com/bid/32281Third Party Advisory, VDB Entry
http://www.securitytracker.com/id?1021182Third 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/2008/3146Third Party Advisory
http://www.vupen.com/english/advisories/2009/0977Third Party Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=436741Issue Tracking, Vendor Advisory
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9157Third Party Advisory
https://www.redhat.com/archives/fedora-package-announce/2008-November/msg00366.htmlThird Party Advisory
https://www.redhat.com/archives/fedora-package-announce/2008-November/msg00385.htmlThird Party Advisory

Timeline

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

Frequently Asked Questions

What is CVE-2008-5014?

How severe is CVE-2008-5014?

Severity scoring for CVE-2008-5014 is pending analysis. The EPSS model estimates a 5.87% probability of exploitation in the next 30 days.

How do I fix CVE-2008-5014?

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-2008-5014?

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

Scan your code now

Source: NVD / NIST