CVE-2018-5148: Use After Free
Published Mar 26, 2018
·Updated
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.
Affected Software
22 affected componentsFixes available
redhat/firefox<59.0.2
59.0.2
redhat/firefox<52.7.3
52.7.3
Mozilla Firefox<59.0.2
59.0.2
Mozilla Firefox ESR<52.7.3
52.7.3
Debian Debian Linux=7.0
Debian Debian Linux=8.0
Debian Debian Linux=9.0
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 Eus=7.5
redhat Enterprise Linux Workstation=6.0
redhat Enterprise Linux Workstation=7.0
Mozilla Firefox<59.0.2
Mozilla Firefox ESR<52.7.3
Canonical Ubuntu Linux=14.04
Canonical Ubuntu Linux=16.04
Canonical Ubuntu Linux=17.10
Mozilla Firefox<52.7.3
debian/firefox
147.0.4-1
debian/firefox-esr
115.14.0esr-1~deb11u1140.7.0esr-1~deb11u1128.14.0esr-1~deb12u1140.7.0esr-1~deb12u1140.4.0esr-1~deb13u1140.7.0esr-1~deb13u1140.7.0esr-1
Event History
Mar 26, 2018
CVE Published
12:00 AM
Jun 11, 2018
CVE Published
via MITRE·09:00 PM
Data Sourced
via MITRE·09:00 PM
DescriptionWeakness
Data Sourced
via NVD·09:29 PM
DescriptionSeverityWeaknessAffected Software
Aug 5, 2024
Data Sourced
via Launchpad·05:38 AM
Description
Nov 25, 2025
Data Sourced
via Ubuntu·06:14 PM
RemedyDescriptionSeverityAffected Software
Feb 20, 2026
Data Sourced
via Debian·08:16 PM
DescriptionAffected Software
Frequently Asked Questions
1
What is the severity of CVE-2018-5148?
CVE-2018-5148 is classified as a high severity vulnerability due to its potential to cause an exploitable crash in affected versions of Firefox.
2
How do I fix CVE-2018-5148?
To fix CVE-2018-5148, update Firefox to version 59.0.2 or later, or Firefox ESR to version 52.7.3 or later.
3
Which versions of Firefox are affected by CVE-2018-5148?
CVE-2018-5148 affects Firefox versions prior to 59.0.2 and Firefox ESR versions prior to 52.7.3.
4
Is there a workaround for CVE-2018-5148?
There are no known workarounds for CVE-2018-5148 other than updating to a patched version.
5
What type of vulnerability is CVE-2018-5148?
CVE-2018-5148 is a use-after-free vulnerability that occurs during graphic operations in the compositor.