Description
An issue was discovered in dec_patch_dictionary.cc in libjxl before 0.8.2. An integer underflow in patch decoding can lead to a denial of service, such as an infinite loop.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | jpeg-xl | 0.8.2-4 | — |
| Debian 13 | jpeg-xl | 0.8.2-4 | — |
| Debian 12 | jpeg-xl | 0.7.0-10+deb12u1 | DSA-5958-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 24.04 LTS | jpeg-xl | 0.7.0-10.2ubuntu6.1 | USN-7637-1 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SUSE Package Hub 15 SP5 | libjxl | 0.8.2-bp155.2.3.1 | openSUSE-SU-2023:0161-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap 15.5 | libjxl | 0.8.2-bp155.2.3.1 | openSUSE-SU-2023:0161-1 |
Advisories 3
- USN-7637-1 jpeg-xl vulnerabilities Ubuntu Security Notices (USN) · Apr 22, 2026
- DSA-5958-1 jpeg-xl - security update Debian Security (DSA / DLA) · Mar 9, 2026
- openSUSE-SU-2023:0161-1 Security update for libjxl SUSE / openSUSE Security Updates · Feb 4, 2026