# CVE-2022-31783: liblouis: Liblouis 3.21.0 has an out-of-bounds write in compileRule in compileTranslationTable.c, as demonstrated by lou_trace.

CVE-2022-31783 is fixed in 7 products on 1 platform, first by liblouis-bin 3.5.0-1ubuntu0.4, released June 2, 2022. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2022-31783
- Priority: Routine
- CVSS: 5.5 (medium)
- EPSS: 0.0113
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Jun 2, 2022

## Description

Liblouis 3.21.0 has an out-of-bounds write in compileRule in compileTranslationTable.c, as demonstrated by lou_trace.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | liblouis Debian 12.15 (bookworm) | 3.22.0-1 | [DEBIAN-CVE-2022-31783](https://patchblox.com/security/data/fix/linux/debian-cve-2022-31783.md) | Jun 2, 2022 |
| Linux | liblouis Debian 13.5 (trixie) | 3.22.0-1 | [DEBIAN-CVE-2022-31783](https://patchblox.com/security/data/fix/linux/debian-cve-2022-31783.md) | Jun 2, 2022 |
| Linux | liblouis Debian 14 | 3.22.0-1 | [DEBIAN-CVE-2022-31783](https://patchblox.com/security/data/fix/linux/debian-cve-2022-31783.md) | Jun 2, 2022 |
| Linux | liblouis-bin Ubuntu 18.04.6 LTS (bionic) | 3.5.0-1ubuntu0.4 | [liblouis-bin 3.5.0-1ubuntu0.4](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-liblouis-bin-3.5.0-1ubuntu0.4.md) | Jun 2, 2022 |
| Linux | liblouis-bin Ubuntu 20.04 LTS (focal) | 3.12.0-3ubuntu0.1 | [liblouis-bin 3.12.0-3ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-liblouis-bin-3.12.0-3ubuntu0.1.md) | Jun 2, 2022 |
| Linux | liblouis-bin Ubuntu 22.04.1 LTS (jammy) | 3.20.0-2ubuntu0.1 | [liblouis-bin 3.20.0-2ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-liblouis-bin-3.20.0-2ubuntu0.1.md) | Jun 2, 2022 |
| Linux | liblouis-data Ubuntu 18.04.6 LTS (bionic) | 3.5.0-1ubuntu0.4 | [liblouis-data 3.5.0-1ubuntu0.4](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-liblouis-data-3.5.0-1ubuntu0.4.md) | Jun 2, 2022 |
| Linux | liblouis-data Ubuntu 20.04 LTS (focal) | 3.12.0-3ubuntu0.1 | [liblouis-data 3.12.0-3ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-liblouis-data-3.12.0-3ubuntu0.1.md) | Jun 2, 2022 |
| Linux | liblouis-data Ubuntu 22.04.1 LTS (jammy) | 3.20.0-2ubuntu0.1 | [liblouis-data 3.20.0-2ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-liblouis-data-3.20.0-2ubuntu0.1.md) | Jun 2, 2022 |
| Linux | liblouis14 Ubuntu 18.04.6 LTS (bionic) | 3.5.0-1ubuntu0.4 | [liblouis14 3.5.0-1ubuntu0.4](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-liblouis14-3.5.0-1ubuntu0.4.md) | Jun 2, 2022 |
| Linux | liblouis20 Ubuntu 20.04 LTS (focal) | 3.12.0-3ubuntu0.1 | [liblouis20 3.12.0-3ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-liblouis20-3.12.0-3ubuntu0.1.md) | Jun 2, 2022 |
| Linux | liblouis20 Ubuntu 22.04.1 LTS (jammy) | 3.20.0-2ubuntu0.1 | [liblouis20 3.20.0-2ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-liblouis20-3.20.0-2ubuntu0.1.md) | Jun 2, 2022 |
| Linux | python-louis Ubuntu 18.04.6 LTS (bionic) | 3.5.0-1ubuntu0.4 | [python-louis 3.5.0-1ubuntu0.4](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-python-louis-3.5.0-1ubuntu0.4.md) | Jun 2, 2022 |
| Linux | python3-louis Ubuntu 18.04.6 LTS (bionic) | 3.5.0-1ubuntu0.4 | [python3-louis 3.5.0-1ubuntu0.4](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-python3-louis-3.5.0-1ubuntu0.4.md) | Jun 2, 2022 |
| Linux | python3-louis Ubuntu 20.04 LTS (focal) | 3.12.0-3ubuntu0.1 | [python3-louis 3.12.0-3ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-python3-louis-3.12.0-3ubuntu0.1.md) | Jun 2, 2022 |
| Linux | python3-louis Ubuntu 22.04.1 LTS (jammy) | 3.20.0-2ubuntu0.1 | [python3-louis 3.20.0-2ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-python3-louis-3.20.0-2ubuntu0.1.md) | Jun 2, 2022 |

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