Description
There is a heap-based buffer overflow that causes a more than two thousand bytes out-of-bounds write in Liblouis 3.2.0, triggered in the function resolveSubtable() in compileTranslationTable.c. It will lead to denial of service or remote code execution.
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 | liblouis | 3.3.0-1 | — |
| Debian 13 | liblouis | 3.3.0-1 | — |
| Debian 12 | liblouis | 3.3.0-1 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 16.04 LTS | liblouis | 2.6.4-2ubuntu0.1 | USN-3408-1 |
| Ubuntu 14.04 LTS | liblouis | 2.5.3-2ubuntu1.1 | USN-3408-1 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 SP3 | liblouis +2 | 2.6.4-6.3.1 | SUSE-SU-2017:2570-1 |
| SLES 12 SP2 | liblouis +2 | 2.6.4-6.3.1 | SUSE-SU-2017:2570-1 |
| SLES 11 SP4 | liblouis +1 | 1.7.0-1.3.3.1 | SUSE-SU-2017:2590-1 |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 12 SP3 | liblouis +2 | 2.6.4-6.3.1 | SUSE-SU-2017:2570-1 |
| SLES for SAP 12 SP2 | liblouis +2 | 2.6.4-6.3.1 | SUSE-SU-2017:2570-1 |
| SLES for SAP 11 SP4 | liblouis +1 | 1.7.0-1.3.3.1 | SUSE-SU-2017:2590-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | liblouis | 3.16.1-1.5 | openSUSE-SU-2024:10953-1 |
Advisories 4
- USN-3408-1 liblouis vulnerabilities Ubuntu Security Notices (USN) · Apr 22, 2026
- openSUSE-SU-2024:10953-1 liblouis-data-3.16.1-1.5 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2017:2590-1 Security update for liblouis SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2017:2570-1 Security update for liblouis SUSE / openSUSE Security Updates · Feb 4, 2026