# CVE-2022-47629: libksba8: Libksba before 1.6.3 is prone to an integer overflow vulnerability in the CRL signature parser.

CVE-2022-47629 is fixed in 3 products on 1 platform, first by libksba8 1.3.5-2ubuntu0.18.04.2, released December 20, 2022. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2022-47629
- Priority: High
- CVSS: 9.8 (Medium)
- EPSS: 0.0167
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Dec 20, 2022

## Description

Libksba before 1.6.3 is prone to an integer overflow vulnerability in the CRL signature parser.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | libksba Debian 11.6 (bullseye) | 1.5.0-3+deb11u2 | [DSA-5305-1](https://patchblox.com/security/data/fix/linux/dsa-5305-1.md) | Dec 21, 2022 |
| Linux | libksba Debian 12.15 (bookworm) | 1.6.3-1 | [DEBIAN-CVE-2022-47629](https://patchblox.com/security/data/fix/linux/debian-cve-2022-47629.md) | Dec 20, 2022 |
| Linux | libksba Debian 13.5 (trixie) | 1.6.3-1 | [DEBIAN-CVE-2022-47629](https://patchblox.com/security/data/fix/linux/debian-cve-2022-47629.md) | Dec 20, 2022 |
| Linux | libksba Debian 14 | 1.6.3-1 | [DEBIAN-CVE-2022-47629](https://patchblox.com/security/data/fix/linux/debian-cve-2022-47629.md) | Dec 20, 2022 |
| Linux | libksba RHEL 8 | 0:1.3.5-9.el8_7 | [RHSA-2023:0625](https://patchblox.com/security/data/fix/linux/rhsa-2023-0625.md) | Feb 7, 2023 |
| Linux | libksba RHEL 9 | 0:1.5.1-6.el9_1 | [RHSA-2023:0626](https://patchblox.com/security/data/fix/linux/rhsa-2023-0626.md) | Feb 7, 2023 |
| Linux | libksba almalinux 8 | 1.3.5-9.el8_7 | [ALSA-2023:0625](https://patchblox.com/security/data/fix/linux/alsa-2023-0625.md) | Feb 7, 2023 |
| Linux | libksba almalinux 9 | 1.5.1-6.el9_1 | [ALSA-2023:0626](https://patchblox.com/security/data/fix/linux/alsa-2023-0626.md) | Feb 7, 2023 |
| Linux | libksba ol 8 | 0:1.3.5-9.el8_7 | [ELSA-2023-0625](https://patchblox.com/security/data/fix/linux/elsa-2023-0625.md) | Feb 7, 2023 |
| Linux | libksba ol 9 | 0:1.5.1-6.el9_1 | [ELSA-2023-0626](https://patchblox.com/security/data/fix/linux/elsa-2023-0626.md) | Feb 8, 2023 |
| Linux | libksba rocky 8 | 0:1.3.5-9.el8_7 | [RLSA-2023:0625](https://patchblox.com/security/data/fix/linux/rlsa-2023-0625.md) | Feb 16, 2023 |
| Linux | libksba rocky 9 | 0:1.5.1-6.el9_1 | [RLSA-2023:0626](https://patchblox.com/security/data/fix/linux/rlsa-2023-0626.md) | Feb 16, 2023 |
| Linux | libksba-devel RHEL 8 | 0:1.3.5-9.el8_7 | [RHSA-2023:0625](https://patchblox.com/security/data/fix/linux/rhsa-2023-0625.md) | Feb 7, 2023 |
| Linux | libksba-devel RHEL 9 | 0:1.5.1-6.el9_1 | [RHSA-2023:0626](https://patchblox.com/security/data/fix/linux/rhsa-2023-0626.md) | Feb 7, 2023 |
| Linux | libksba-devel almalinux 8 | 1.3.5-9.el8_7 | [ALSA-2023:0625](https://patchblox.com/security/data/fix/linux/alsa-2023-0625.md) | Feb 7, 2023 |
| Linux | libksba-devel almalinux 9 | 1.5.1-6.el9_1 | [ALSA-2023:0626](https://patchblox.com/security/data/fix/linux/alsa-2023-0626.md) | Feb 7, 2023 |
| Linux | libksba-devel ol 8 | 0:1.3.5-9.el8_7 | [ELSA-2023-0625](https://patchblox.com/security/data/fix/linux/elsa-2023-0625.md) | Feb 7, 2023 |
| Linux | libksba-devel ol 9 | 0:1.5.1-6.el9_1 | [ELSA-2023-0626](https://patchblox.com/security/data/fix/linux/elsa-2023-0626.md) | Feb 8, 2023 |
| Linux | libksba8 Ubuntu 18.04.6 LTS (bionic) | 1.3.5-2ubuntu0.18.04.2 | [libksba8 1.3.5-2ubuntu0.18.04.2](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libksba8-1.3.5-2ubuntu0.18.04.2.md) | Dec 20, 2022 |
| Linux | libksba8 Ubuntu 20.04 LTS (focal) | 1.3.5-2ubuntu0.20.04.2 | [libksba8 1.3.5-2ubuntu0.20.04.2](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libksba8-1.3.5-2ubuntu0.20.04.2.md) | Dec 20, 2022 |
| Linux | libksba8 Ubuntu 22.04.1 LTS (jammy) | 1.6.0-2ubuntu0.2 | [libksba8 1.6.0-2ubuntu0.2](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-libksba8-1.6.0-2ubuntu0.2.md) | Dec 20, 2022 |

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