CVE-2018-12387
critical
CVSS v3
—
CVSS v2
—
VIR risk
9.5
Description
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.
Predictions
Exploit likelihood
20%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2018-12387
Vendor advisory: suse — https://www.suse.com/security/cve/CVE-2018-12387.html
Vendor advisory: arch — https://security.archlinux.org/ASA-201810-6
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| arch | fixed | 62.0.3-1 | |
| sles | affected | | |
| debian | sid | fixed | 62.0.3-1 |
| debian | bookworm | fixed | 60.2.2esr-1 |
| debian | bullseye | fixed | 60.2.2esr-1 |
| debian | forky | fixed | 60.2.2esr-1 |
| debian | trixie | fixed | 60.2.2esr-1 |
References
Verify integrity in audit chain (admin only). AS-IS.