Integer underflow in Libjxl - CVE-2023-35790
Published: July 16, 2025
Vulnerability identifier: #VU112998
CSH Severity: Low
CVSS v4: 4.6 [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]
CVE-ID: CVE-2023-35790
CWE-ID: CWE-191
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to crash the application.
The vulnerability exists due to integer underflow in dec_patch_dictionary.cc. A remote attacker can trick the victim into opening a specially crafted file, trigger an integer underflow and crash the application.
Affected software
Libjxl
Debian Linux
Ubuntu
jpeg-xl (Debian package)
jpeg-xl (Ubuntu package)
Debian Linux
Ubuntu
jpeg-xl (Debian package)
jpeg-xl (Ubuntu package)
How to mitigate CVE-2023-35790
Install updates from vendor's website.
Libjxl - update to 0.8.2
jpeg-xl (Debian package) - update to 0.7.0-10+deb12u1
jpeg-xl (Ubuntu package) - update to 0.7.0-10.2ubuntu6.1
jpeg-xl (Debian package) - update to 0.7.0-10+deb12u1
jpeg-xl (Ubuntu package) - update to 0.7.0-10.2ubuntu6.1