HOME VULNERABILITIESCVE-2008-5014

CRITICAL

CVE-2008-5014

CWE-20Published: November 13, 2008· Updated: Jun 16, 2026

10.0

CVSS v3.1

Official 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.

Technical Analysis

CVE-2008-5014 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

CVSS v3.1 Vector Breakdown

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges Req.

User Interaction

Scope

Impact

ConfidentialityC

IntegrityC

AvailabilityC

AV:N/AC:L/Au:N/C:C/I:C/A:C

Affected Vendors & Products

Canonical1 product(s)

ubuntu linux

Debian1 product(s)

debian linux

Mozilla3 product(s)

firefoxseamonkeythunderbird

Source: NVD CPE · 8 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time

Offensive Security exploit database

GitHub PoC Search

Community PoC repositories

Rapid7 / Metasploit

Metasploit module search

Security advisories & exploits

Official NIST entry

CVE Program entry

External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

ADVISORYhttp://lists.opensuse.org/opensuse-security-announce/2008-11/msg00004.html

ADVISORYhttp://secunia.com/advisories/32011

ADVISORYhttp://secunia.com/advisories/32684

ADVISORYhttp://secunia.com/advisories/32693

ADVISORYhttp://secunia.com/advisories/32694

ADVISORYhttp://secunia.com/advisories/32695

ADVISORYhttp://secunia.com/advisories/32714

ADVISORYhttp://secunia.com/advisories/32715

ADVISORYhttp://secunia.com/advisories/32721

ADVISORYhttp://secunia.com/advisories/32778

ADVISORYhttp://secunia.com/advisories/32798

ADVISORYhttp://secunia.com/advisories/32845

ADVISORYhttp://secunia.com/advisories/32853

ADVISORYhttp://secunia.com/advisories/33433

ADVISORYhttp://secunia.com/advisories/33434

ADVISORYhttp://secunia.com/advisories/34501

ADVISORYhttp://ubuntu.com/usn/usn-667-1

ADVISORYhttp://www.debian.org/security/2008/dsa-1669

ADVISORYhttp://www.debian.org/security/2008/dsa-1671

ADVISORYhttp://www.debian.org/security/2009/dsa-1696

ADVISORYhttp://www.debian.org/security/2009/dsa-1697

ADVISORYhttp://www.mandriva.com/security/advisories?name=MDVSA-2008:228

ADVISORYhttp://www.mandriva.com/security/advisories?name=MDVSA-2008:230

ADVISORYhttp://www.mandriva.com/security/advisories?name=MDVSA-2008:235

ADVISORYhttp://www.mozilla.org/security/announce/2008/mfsa2008-50.html

ADVISORYhttp://www.redhat.com/support/errata/RHSA-2008-0976.html

ADVISORYhttp://www.redhat.com/support/errata/RHSA-2008-0977.html

ADVISORYhttp://www.redhat.com/support/errata/RHSA-2008-0978.html

ADVISORYhttp://www.securityfocus.com/bid/32281

ADVISORYhttp://www.securitytracker.com/id?1021182

ADVISORYhttp://www.us-cert.gov/cas/techalerts/TA08-319A.html

ADVISORYhttp://www.vupen.com/english/advisories/2008/3146

ADVISORYhttp://www.vupen.com/english/advisories/2009/0977

ADVISORYhttps://bugzilla.mozilla.org/show_bug.cgi?id=436741

ADVISORYhttps://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9157

ADVISORYhttps://www.redhat.com/archives/fedora-package-announce/2008-November/msg00366.html

ADVISORYhttps://www.redhat.com/archives/fedora-package-announce/2008-November/msg00385.html

ADVISORYhttp://lists.opensuse.org/opensuse-security-announce/2008-11/msg00004.html

ADVISORYhttp://secunia.com/advisories/32011

ADVISORYhttp://secunia.com/advisories/32684

ADVISORYhttp://secunia.com/advisories/32693

ADVISORYhttp://secunia.com/advisories/32694

ADVISORYhttp://secunia.com/advisories/32695

ADVISORYhttp://secunia.com/advisories/32714

ADVISORYhttp://secunia.com/advisories/32715

ADVISORYhttp://secunia.com/advisories/32721

ADVISORYhttp://secunia.com/advisories/32778

ADVISORYhttp://secunia.com/advisories/32798

ADVISORYhttp://secunia.com/advisories/32845

ADVISORYhttp://secunia.com/advisories/32853

ADVISORYhttp://secunia.com/advisories/33433

ADVISORYhttp://secunia.com/advisories/33434

ADVISORYhttp://secunia.com/advisories/34501

ADVISORYhttp://ubuntu.com/usn/usn-667-1

ADVISORYhttp://www.debian.org/security/2008/dsa-1669

ADVISORYhttp://www.debian.org/security/2008/dsa-1671

ADVISORYhttp://www.debian.org/security/2009/dsa-1696

ADVISORYhttp://www.debian.org/security/2009/dsa-1697

ADVISORYhttp://www.mandriva.com/security/advisories?name=MDVSA-2008:228

ADVISORYhttp://www.mandriva.com/security/advisories?name=MDVSA-2008:230

ADVISORYhttp://www.mandriva.com/security/advisories?name=MDVSA-2008:235

ADVISORYhttp://www.mozilla.org/security/announce/2008/mfsa2008-50.html

ADVISORYhttp://www.redhat.com/support/errata/RHSA-2008-0976.html

ADVISORYhttp://www.redhat.com/support/errata/RHSA-2008-0977.html

ADVISORYhttp://www.redhat.com/support/errata/RHSA-2008-0978.html

ADVISORYhttp://www.securityfocus.com/bid/32281

ADVISORYhttp://www.securitytracker.com/id?1021182

ADVISORYhttp://www.us-cert.gov/cas/techalerts/TA08-319A.html

ADVISORYhttp://www.vupen.com/english/advisories/2008/3146

ADVISORYhttp://www.vupen.com/english/advisories/2009/0977

ADVISORYhttps://bugzilla.mozilla.org/show_bug.cgi?id=436741

ADVISORYhttps://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9157

ADVISORYhttps://www.redhat.com/archives/fedora-package-announce/2008-November/msg00366.html

ADVISORYhttps://www.redhat.com/archives/fedora-package-announce/2008-November/msg00385.html

All References (76)

→

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

Quick Facts

CVE IDCVE-2008-5014

CVSS Score10.0 / 10

SeverityCRITICAL

WeaknessCWE-20

CISA KEVNo

Affected3 vendor(s)

PublishedNov 13, 2008

Related CVEs (CWE-20)

Recommended Actions

→Apply vendor patches immediately
→Monitor CVE-2008-5014 in threat intel feeds
→Review IDS/IPS signatures for exploitation attempts

Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.

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