CVE-2018-5148
A use-after-free vulnerability can occur in the compositor during certain graphics operations when a raw pointer is used instead of a reference counted one.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (2.92%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
A use-after-free vulnerability can occur in the compositor during certain graphics operations when a raw pointer is used instead of a reference counted one. This results in a potentially exploitable crash. This vulnerability affects Firefox ESR < 52.7.3 and Firefox < 59.0.2.
- CVSS 3.0
- 9.8 CRITICALCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 2.92% probability · 87th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-416
- Affected
- debian/debian linux · redhat/enterprise linux desktop · redhat/enterprise linux server · redhat/enterprise linux server eus · redhat/enterprise linux workstation · mozilla/firefox · canonical/ubuntu linux
- Source
- security@mozilla.org
EPSS 2.9% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://www.securityfocus.com/bid/103506Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1040574Third Party Advisory, VDB Entry
- https://access.redhat.com/errata/RHSA-2018:1098Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:1099Third Party Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1440717Issue Tracking, Permissions Required, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2018/03/msg00023.htmlThird Party Advisory
- https://usn.ubuntu.com/3609-1/Third Party Advisory
- https://www.debian.org/security/2018/dsa-4153Third Party Advisory
- https://www.mozilla.org/security/advisories/mfsa2018-10/Vendor Advisory
- http://www.securityfocus.com/bid/103506Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1040574Third Party Advisory, VDB Entry
- https://access.redhat.com/errata/RHSA-2018:1098Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:1099Third Party Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1440717Issue Tracking, Permissions Required, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2018/03/msg00023.htmlThird Party Advisory
- https://usn.ubuntu.com/3609-1/Third Party Advisory
- https://www.debian.org/security/2018/dsa-4153Third Party Advisory
- https://www.mozilla.org/security/advisories/mfsa2018-10/Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.