CVE-2018-12387
What it is
A vulnerability where the JavaScript JIT compiler inlines Array.prototype.push with multiple arguments that results in the stack pointer being off by 8 bytes after a bailout. This leaks a memory address to the calling function which can be used as part of an exploit inside the sandboxed content process. This vulnerability affects Firefox ESR < 60.2.2 and Firefox < 62.0.3.
At a glance
- Exploitability
- Can be exploited over the network without logging in. High risk of data exposure, service disruption.
- Exploit odds
- 9.6% chance of exploitation in the next 30 days (EPSS).
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 9.6% in the next 30 days (EPSS).
- Severity: 9.1 CRITICAL (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 9.6% · EPSS, next 30 days
- Weakness
- CWE-20 · Improper input validation
- Record status
- Modified
Affected
- 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
Attack profile CVSS 3.0 · 9.1
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- None
- Availability
- High
Raw vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2018-12387.md and follow it. Check whether this project is affected by CVE-2018-12387. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- https://bugzilla.mozilla.org/show_bug.cgi?id=1493903
- https://www.mozilla.org/security/advisories/mfsa2018-24/
- https://bugzilla.mozilla.org/show_bug.cgi?id=1493903
- https://www.mozilla.org/security/advisories/mfsa2018-24/
References
- http://www.securityfocus.com/bid/105460
- http://www.securitytracker.com/id/1041770
- https://access.redhat.com/errata/RHSA-2018:2881
- https://access.redhat.com/errata/RHSA-2018:2884
- https://bugzilla.mozilla.org/show_bug.cgi?id=1493903
- https://security.gentoo.org/glsa/201810-01
- https://usn.ubuntu.com/3778-1/
- https://www.debian.org/security/2018/dsa-4310
- https://www.mozilla.org/security/advisories/mfsa2018-24/
- http://www.securityfocus.com/bid/105460
- http://www.securitytracker.com/id/1041770
- https://access.redhat.com/errata/RHSA-2018:2881
- https://access.redhat.com/errata/RHSA-2018:2884
- https://bugzilla.mozilla.org/show_bug.cgi?id=1493903
- https://security.gentoo.org/glsa/201810-01
- https://usn.ubuntu.com/3778-1/
- https://www.debian.org/security/2018/dsa-4310
- https://www.mozilla.org/security/advisories/mfsa2018-24/