CVE-2018-12363
UnknownEPSS 3.10%
Last modified
CVE-2018-12363 is a vulnerability of currently unknown severity. A use-after-free vulnerability can occur when script uses mutation events to move DOM nodes between documents, resulting in the old document that held the node being freed but the node still having a pointer referencing it. This results in a potentially exploitable crash. EPSS estimates a 3.10% chance of exploitation in the next 30 days.
Description
A use-after-free vulnerability can occur when script uses mutation events to move DOM nodes between documents, resulting in the old document that held the node being freed but the node still having a pointer referencing it. This results in a potentially exploitable crash. This vulnerability affects Thunderbird < 60, Thunderbird < 52.9, Firefox ESR < 60.1, Firefox ESR < 52.9, and Firefox < 61.
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Redhat | Enterprise Linux Desktop | 6.0 |
| Redhat | Enterprise Linux Desktop | 7.0 |
| Redhat | Enterprise Linux Server | 6.0 |
| Redhat | Enterprise Linux Server | 7.0 |
| Redhat | Enterprise Linux Server Aus | 7.6 |
| Redhat | Enterprise Linux Server Eus | 7.5 |
| Redhat | Enterprise Linux Server Eus | 7.6 |
| Redhat | Enterprise Linux Server Tus | 7.6 |
| Redhat | Enterprise Linux Workstation | 6.0 |
| Redhat | Enterprise Linux Workstation | 7.0 |
| Debian | Debian Linux | 8.0 |
| Debian | Debian Linux | 9.0 |
| Canonical | Ubuntu Linux | 14.04 |
| Canonical | Ubuntu Linux | 16.04 |
| Canonical | Ubuntu Linux | 17.10 |
| Canonical | Ubuntu Linux | 18.04 |
| Mozilla | Firefox | < 61.0 |
| Mozilla | Firefox | >= 53.0, < 60.1.0 |
| Mozilla | Firefox Esr | < 52.9 |
| Mozilla | Thunderbird | < 52.9 |
| Mozilla | Thunderbird | >= 52.9.1, < 60.0 |
References
- http://www.securityfocus.com/bid/104560Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1041193Third Party Advisory, VDB Entry
- https://access.redhat.com/errata/RHSA-2018:2112Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:2113Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:2251Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:2252Third Party Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1464784Issue Tracking, Permissions Required, Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2018/06/msg00014.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2018/07/msg00013.htmlMailing List, Third Party Advisory
- https://security.gentoo.org/glsa/201810-01Third Party Advisory
- https://security.gentoo.org/glsa/201811-13Third Party Advisory
- https://usn.ubuntu.com/3705-1/Third Party Advisory
- https://usn.ubuntu.com/3714-1/Third Party Advisory
- https://www.debian.org/security/2018/dsa-4235Third Party Advisory
- https://www.debian.org/security/2018/dsa-4244Third Party Advisory
- https://www.mozilla.org/security/advisories/mfsa2018-15/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2018-16/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2018-17/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2018-18/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2018-19/Vendor Advisory
- http://www.securityfocus.com/bid/104560Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1041193Third Party Advisory, VDB Entry
- https://access.redhat.com/errata/RHSA-2018:2112Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:2113Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:2251Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:2252Third Party Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1464784Issue Tracking, Permissions Required, Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2018/06/msg00014.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2018/07/msg00013.htmlMailing List, Third Party Advisory
- https://security.gentoo.org/glsa/201810-01Third Party Advisory
- https://security.gentoo.org/glsa/201811-13Third Party Advisory
- https://usn.ubuntu.com/3705-1/Third Party Advisory
- https://usn.ubuntu.com/3714-1/Third Party Advisory
- https://www.debian.org/security/2018/dsa-4235Third Party Advisory
- https://www.debian.org/security/2018/dsa-4244Third Party Advisory
- https://www.mozilla.org/security/advisories/mfsa2018-15/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2018-16/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2018-17/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2018-18/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2018-19/Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2018-12363?
A use-after-free vulnerability can occur when script uses mutation events to move DOM nodes between documents, resulting in the old document that held the node being freed but the node still having a pointer referencing it. This results in a potentially exploitable crash. This vulnerability affects Thunderbird < 60, Thunderbird < 52.9, Firefox ESR < 60.1, Firefox ESR < 52.9, and Firefox < 61.
How severe is CVE-2018-12363?
Severity scoring for CVE-2018-12363 is pending analysis. The EPSS model estimates a 3.10% probability of exploitation in the next 30 days.
How do I fix CVE-2018-12363?
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.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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