Vulnerability Description
A vulnerability in register allocation in JavaScript can lead to type confusion, allowing for an arbitrary read and write. This leads to remote code execution inside the sandboxed content process when triggered. This vulnerability affects Firefox ESR < 60.2.2 and Firefox < 62.0.3.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Redhat | Enterprise Linux Desktop | 6.0 |
| Redhat | Enterprise Linux Server | 6.0 |
| Redhat | Enterprise Linux Server Aus | 7.6 |
| Redhat | Enterprise Linux Server Eus | 7.5 |
| Redhat | Enterprise Linux Server Tus | 7.6 |
| Redhat | Enterprise Linux Workstation | 6.0 |
| Debian | Debian Linux | 9.0 |
| Canonical | Ubuntu Linux | 14.04 |
| Mozilla | Firefox | < 60.2.2 |
Related Weaknesses (CWE)
References
- http://www.securityfocus.com/bid/105460Third Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1041770Third Party AdvisoryVDB Entry
- https://access.redhat.com/errata/RHSA-2018:2881Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:2884Third Party Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1493900ExploitIssue TrackingPatch
- https://security.gentoo.org/glsa/201810-01Third Party Advisory
- https://usn.ubuntu.com/3778-1/Third Party Advisory
- https://www.debian.org/security/2018/dsa-4310Third Party Advisory
- https://www.mozilla.org/security/advisories/mfsa2018-24/Vendor Advisory
- http://www.securityfocus.com/bid/105460Third Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1041770Third Party AdvisoryVDB Entry
- https://access.redhat.com/errata/RHSA-2018:2881Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:2884Third Party Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1493900ExploitIssue TrackingPatch
- https://security.gentoo.org/glsa/201810-01Third Party Advisory
FAQ
What is CVE-2018-12386?
CVE-2018-12386 is a vulnerability with a CVSS score of 8.1 (HIGH). A vulnerability in register allocation in JavaScript can lead to type confusion, allowing for an arbitrary read and write. This leads to remote code execution inside the sandboxed content process when...
How severe is CVE-2018-12386?
CVE-2018-12386 has been rated HIGH with a CVSS base score of 8.1/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2018-12386?
Check the references section above for vendor advisories and patch information. Affected products include: Redhat Enterprise Linux Desktop, Redhat Enterprise Linux Server, Redhat Enterprise Linux Server Aus, Redhat Enterprise Linux Server Eus, Redhat Enterprise Linux Server Tus.