CVE-2018-18504

Severity: critical (CVSS 9.8 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.8% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2019-02-05 · updated 2026-06-17
Weakness: CWE-125

Description

A crash and out-of-bounds read can occur when the buffer of a texture client is freed while it is still in use during graphic operations. This results is a potentially exploitable crash and the possibility of reading from the memory of the freed buffers. This vulnerability affects Firefox < 65.

Affected products

Canonical Ubuntu Linux: 14.04, 16.04, 18.04, 18.10
Mozilla Firefox: before 65.0 — fixed in 65.0

How to fix

Upgrade to a fixed version: Mozilla Firefox 65.0. Check the vendor advisory for mitigations.

References

http://www.securityfocus.com/bid/106773
https://usn.ubuntu.com/3874-1/
https://www.mozilla.org/security/advisories/mfsa2019-01/
http://www.securityfocus.com/bid/106773
https://usn.ubuntu.com/3874-1/
https://www.mozilla.org/security/advisories/mfsa2019-01/

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