# CVE-2022-1622: tiff: LibTIFF master branch has an out-of-bounds read in LZWDecode in libtiff/tif_lzw.c:619, allowing attackers to cause a...

CVE-2022-1622 is fixed in 8 products on 1 platform, first by DEBIAN-CVE-2022-1622, released May 11, 2022. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2022-1622
- Priority: Routine
- CVSS: 5.5 (medium)
- EPSS: 0.0173
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: May 11, 2022

## Description

LibTIFF master branch has an out-of-bounds read in LZWDecode in libtiff/tif_lzw.c:619, allowing attackers to cause a denial-of-service via a crafted tiff file. For users that compile libtiff from sources, the fix is available with commit b4e79bfa.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | libtiff amzn 2023 | 4.4.0-4.amzn2023.0.3 | [ALAS2023-2023-050](https://patchblox.com/security/data/fix/linux/alas2023-2023-050.md) | Feb 17, 2023 |
| Linux | libtiff-debuginfo amzn 2023 | 4.4.0-4.amzn2023.0.3 | [ALAS2023-2023-050](https://patchblox.com/security/data/fix/linux/alas2023-2023-050.md) | Feb 17, 2023 |
| Linux | libtiff-debugsource amzn 2023 | 4.4.0-4.amzn2023.0.3 | [ALAS2023-2023-050](https://patchblox.com/security/data/fix/linux/alas2023-2023-050.md) | Feb 17, 2023 |
| Linux | libtiff-devel amzn 2023 | 4.4.0-4.amzn2023.0.3 | [ALAS2023-2023-050](https://patchblox.com/security/data/fix/linux/alas2023-2023-050.md) | Feb 17, 2023 |
| Linux | libtiff-static amzn 2023 | 4.4.0-4.amzn2023.0.3 | [ALAS2023-2023-050](https://patchblox.com/security/data/fix/linux/alas2023-2023-050.md) | Feb 17, 2023 |
| Linux | libtiff-tools amzn 2023 | 4.4.0-4.amzn2023.0.3 | [ALAS2023-2023-050](https://patchblox.com/security/data/fix/linux/alas2023-2023-050.md) | Feb 17, 2023 |
| Linux | libtiff-tools-debuginfo amzn 2023 | 4.4.0-4.amzn2023.0.3 | [ALAS2023-2023-050](https://patchblox.com/security/data/fix/linux/alas2023-2023-050.md) | Feb 17, 2023 |
| Linux | tiff Debian 12.15 (bookworm) | 4.4.0~rc1-1 | [DEBIAN-CVE-2022-1622](https://patchblox.com/security/data/fix/linux/debian-cve-2022-1622.md) | May 11, 2022 |
| Linux | tiff Debian 13.5 (trixie) | 4.4.0~rc1-1 | [DEBIAN-CVE-2022-1622](https://patchblox.com/security/data/fix/linux/debian-cve-2022-1622.md) | May 11, 2022 |
| Linux | tiff Debian 14 | 4.4.0~rc1-1 | [DEBIAN-CVE-2022-1622](https://patchblox.com/security/data/fix/linux/debian-cve-2022-1622.md) | May 11, 2022 |

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Data as of 2026-11-08T00:53:09Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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