Vulnerability · Published May 14, 2024 · Assigned by mozilla

CVE-2024-4770

High 8.8

In plain English

A high-severity use-after-free in Firefox from Mozilla. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 48% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)8.8High
Exploit odds (30 days)0.6%top 51.5% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

When saving a page to PDF, certain font styles could have led to a potential use-after-free crash. This vulnerability affects Firefox < 126, Firefox ESR < 115.11, and Thunderbird < 115.11.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
AlmaLinux:8firefox115.11.0-1.el8_10.alma.1ALSA-2024:3783
AlmaLinux:9firefox115.11.0-1.el9_4.alma.1ALSA-2024:2883
AlmaLinux:9firefox-x11115.11.0-1.el9_4.alma.1ALSA-2024:2883
AlmaLinux:8thunderbird115.11.0-1.el8_10.alma.1ALSA-2024:3784
AlmaLinux:9thunderbird115.11.0-1.el9_4.alma.1ALSA-2024:2888
Debian:12firefox-esr115.11.0esr-1~deb12u1DEBIAN-CVE-2024-4770
Debian:12firefox-esr115.11.0esr-1~deb12u1DSA-5691-1
Debian:13firefox-esr115.11.0esr-1DEBIAN-CVE-2024-4770
Debian:14firefox-esr115.11.0esr-1DEBIAN-CVE-2024-4770
Debian:12thunderbird1:115.11.0-1~deb12u1DSA-5693-1
Debian:12thunderbird1:115.11.0-1~deb12u1DEBIAN-CVE-2024-4770
Debian:13thunderbird1:115.11.0-1DEBIAN-CVE-2024-4770
Debian:14thunderbird1:115.11.0-1DEBIAN-CVE-2024-4770
Rocky Linux:8firefox0:115.11.0-1.el8_10RLSA-2024:3783
Rocky Linux:8thunderbird0:115.11.0-1.el8_10RLSA-2024:3784
Rocky Linux:9thunderbird0:115.11.0-1.el9_4RLSA-2024:2888
Ubuntu:22.04:LTSmozjs102no fix listedUBUNTU-CVE-2024-4770
Ubuntu:24.04:LTSmozjs102no fix listedUBUNTU-CVE-2024-4770
Ubuntu:22.04:LTSmozjs78no fix listedUBUNTU-CVE-2024-4770
Ubuntu:22.04:LTSmozjs91no fix listedUBUNTU-CVE-2024-4770
Ubuntu:22.04:LTSthunderbird1:115.11.0+build2-0ubuntu0.22.04.1USN-6782-1
Ubuntu:22.04:LTSthunderbird1:115.11.0+build2-0ubuntu0.22.04.1UBUNTU-CVE-2024-4770

Affected products (as reported)

VendorProductVersions
Mozilla Firefox unspecified – before 126
Mozilla Firefox ESR unspecified – before 115.11
Mozilla Thunderbird unspecified – before 115.11

Weakness: CWE-416 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

References