Use-after-free in Mozilla Thunderbird - CVE-2024-8394

Vulnerability identifier: #VU96942

CSH Severity: Low

CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear

CVE-ID: CVE-2024-8394

CWE-ID: CWE-416

Exploitation vector: Remote access

Exploit availability: No public exploit available

Affected software:
Mozilla Thunderbird
Gentoo Linux
Oracle Linux
SUSE Linux Enterprise Desktop 15
SUSE Linux Enterprise Server for SAP Applications 15
SUSE Linux Enterprise Workstation Extension 15
SUSE Linux Enterprise High Performance Computing 15
SUSE Linux Enterprise Server 15
SUSE Linux Enterprise Real Time 15
SUSE Linux Enterprise Micro
Anolis OS
Red Hat Enterprise Linux for ARM 64
Red Hat Enterprise Linux for Power, little endian
Red Hat Enterprise Linux for IBM z Systems
Red Hat Enterprise Linux for x86_64
Red Hat Enterprise Linux Server - AUS
Red Hat Enterprise Linux Server - TUS
Red Hat Enterprise Linux for ARM 64 - Extended Update Support
Red Hat Enterprise Linux for Power, little endian - Extended Update Support
Red Hat Enterprise Linux for IBM z Systems - Extended Update Support
Red Hat Enterprise Linux for x86_64 - Extended Update Support
Slackware Linux
SUSE Linux Enterprise Desktop 15 SP4 LTSS
SUSE Package Hub 15
openSUSE Leap
Oracle Solaris
Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions
www-client/firefox
dev-lang/spidermonkey
mozilla-thunderbird
thunderbird (Red Hat package)
thunderbird
MozillaThunderbird-debuginfo
MozillaThunderbird
MozillaThunderbird-translations-common
MozillaThunderbird-translations-other
MozillaThunderbird-debugsource
mail-client/thunderbird
mail-client/thunderbird-bin

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a use-after-free error when aborting verification of an OTR chat session. A remote attacker can crash the application.

Install updates from vendor's website.

• https://bugzilla.mozilla.org/show_bug.cgi?id=1895737
• https://www.mozilla.org/security/advisories/mfsa2024-43/