# CVE-2023-2908: tiff: A null pointer dereference issue was found in Libtiff's tif_dir.c file

CVE-2023-2908 is fixed in 5 products on 1 platform, first by DEBIAN-CVE-2023-2908, released June 30, 2023. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2023-2908
- Priority: Routine
- CVSS: 5.5 (medium)
- EPSS: 0.0042
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Jun 30, 2023

## Description

A null pointer dereference issue was found in Libtiff's tif_dir.c file. This issue may allow an attacker to pass a crafted TIFF image file to the tiffcp utility which triggers a runtime error that causes undefined behavior. This will result in an application crash, eventually leading to a denial of service.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | libtiff-opengl Ubuntu 18.04.6 LTS (bionic) | 4.0.9-5ubuntu0.10+esm2 | [libtiff-opengl 4.0.9-5ubuntu0.10+esm2](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libtiff-opengl-4.0.9-5ubuntu0.10-esm2.md) | Jul 30, 2023 |
| Linux | libtiff-opengl Ubuntu 20.04 LTS (focal) | 4.1.0+git191117-2ubuntu0.20.04.9 | [libtiff-opengl 4.1.0+git191117-2ubuntu0.20.04.9](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libtiff-opengl-4.1.0-git191117-2ubuntu0.20.04.9.md) | Jul 30, 2023 |
| Linux | libtiff-opengl Ubuntu 22.04.1 LTS (jammy) | 4.3.0-6ubuntu0.5 | [libtiff-opengl 4.3.0-6ubuntu0.5](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-libtiff-opengl-4.3.0-6ubuntu0.5.md) | Jul 30, 2023 |
| Linux | libtiff-tools Ubuntu 18.04.6 LTS (bionic) | 4.0.9-5ubuntu0.10+esm2 | [libtiff-tools 4.0.9-5ubuntu0.10+esm2](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libtiff-tools-4.0.9-5ubuntu0.10-esm2.md) | Jul 30, 2023 |
| Linux | libtiff-tools Ubuntu 20.04 LTS (focal) | 4.1.0+git191117-2ubuntu0.20.04.9 | [libtiff-tools 4.1.0+git191117-2ubuntu0.20.04.9](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libtiff-tools-4.1.0-git191117-2ubuntu0.20.04.9.md) | Jul 30, 2023 |
| Linux | libtiff-tools Ubuntu 22.04.1 LTS (jammy) | 4.3.0-6ubuntu0.5 | [libtiff-tools 4.3.0-6ubuntu0.5](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-libtiff-tools-4.3.0-6ubuntu0.5.md) | Jul 30, 2023 |
| Linux | libtiff5 Ubuntu 18.04.6 LTS (bionic) | 4.0.9-5ubuntu0.10+esm2 | [libtiff5 4.0.9-5ubuntu0.10+esm2](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libtiff5-4.0.9-5ubuntu0.10-esm2.md) | Jul 30, 2023 |
| Linux | libtiff5 Ubuntu 20.04 LTS (focal) | 4.1.0+git191117-2ubuntu0.20.04.9 | [libtiff5 4.1.0+git191117-2ubuntu0.20.04.9](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libtiff5-4.1.0-git191117-2ubuntu0.20.04.9.md) | Jul 30, 2023 |
| Linux | libtiff5 Ubuntu 22.04.1 LTS (jammy) | 4.3.0-6ubuntu0.5 | [libtiff5 4.3.0-6ubuntu0.5](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-libtiff5-4.3.0-6ubuntu0.5.md) | Jul 30, 2023 |
| Linux | libtiffxx5 Ubuntu 18.04.6 LTS (bionic) | 4.0.9-5ubuntu0.10+esm2 | [libtiffxx5 4.0.9-5ubuntu0.10+esm2](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libtiffxx5-4.0.9-5ubuntu0.10-esm2.md) | Jul 30, 2023 |
| Linux | libtiffxx5 Ubuntu 20.04 LTS (focal) | 4.1.0+git191117-2ubuntu0.20.04.9 | [libtiffxx5 4.1.0+git191117-2ubuntu0.20.04.9](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libtiffxx5-4.1.0-git191117-2ubuntu0.20.04.9.md) | Jul 30, 2023 |
| Linux | libtiffxx5 Ubuntu 22.04.1 LTS (jammy) | 4.3.0-6ubuntu0.5 | [libtiffxx5 4.3.0-6ubuntu0.5](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-libtiffxx5-4.3.0-6ubuntu0.5.md) | Jul 30, 2023 |
| Linux | tiff Debian 12.15 (bookworm) | 4.5.0-6+deb12u2 | [DEBIAN-CVE-2023-2908](https://patchblox.com/security/data/fix/linux/debian-cve-2023-2908.md) | Jun 30, 2023 |
| Linux | tiff Debian 13.5 (trixie) | 4.5.1~rc3-1 | [DEBIAN-CVE-2023-2908](https://patchblox.com/security/data/fix/linux/debian-cve-2023-2908.md) | Jun 30, 2023 |
| Linux | tiff Debian 14 | 4.5.1~rc3-1 | [DEBIAN-CVE-2023-2908](https://patchblox.com/security/data/fix/linux/debian-cve-2023-2908.md) | Jun 30, 2023 |

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