# CVE-2023-38103: gstreamer1.0-plugins-ugly: GStreamer RealMedia File Parsing Integer Overflow Remote Code Execution Vulnerability

CVE-2023-38103 is fixed in 2 products on 1 platform, first by DSA-5476-1, released August 12, 2023. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2023-38103
- Priority: High
- CVSS: 8.8 (Medium)
- EPSS: 0.0152
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Aug 12, 2023

## Description

GStreamer RealMedia File Parsing Integer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of GStreamer. Interaction with this library is required to exploit this vulnerability but attack vectors may vary depending on the implementation. The specific flaw exists within the parsing of MDPR chunks. The issue results from the lack of proper validation of user-supplied data, which can result in an integer overflow before allocating a buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-21443.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | gst-plugins-ugly1.0 Debian 11.6 (bullseye) | 1.18.4-2+deb11u1 | [DSA-5476-1](https://patchblox.com/security/data/fix/linux/dsa-5476-1.md) | Aug 12, 2023 |
| Linux | gst-plugins-ugly1.0 Debian 12.15 (bookworm) | 1.22.0-2+deb12u1 | [DSA-5476-1](https://patchblox.com/security/data/fix/linux/dsa-5476-1.md) | Aug 12, 2023 |
| Linux | gst-plugins-ugly1.0 Debian 13.5 (trixie) | 1.22.5-1 | [DEBIAN-CVE-2023-38103](https://patchblox.com/security/data/fix/linux/debian-cve-2023-38103.md) | May 3, 2024 |
| Linux | gst-plugins-ugly1.0 Debian 14 | 1.22.5-1 | [DEBIAN-CVE-2023-38103](https://patchblox.com/security/data/fix/linux/debian-cve-2023-38103.md) | May 3, 2024 |
| Linux | gstreamer1.0-plugins-ugly Ubuntu 18.04.6 LTS (bionic) | 1.14.5-0ubuntu1~18.04.1+esm1 | [gstreamer1.0-plugins-ugly 1.14.5-0ubuntu1~18.04.1+esm1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-gstreamer1.0-plugins-ugly-1.14.5-0ubuntu1-18.04.1-esm1.md) | Aug 9, 2026 |
| Linux | gstreamer1.0-plugins-ugly Ubuntu 20.04 LTS (focal) | 1.16.2-2ubuntu0.1~esm1 | [gstreamer1.0-plugins-ugly 1.16.2-2ubuntu0.1~esm1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-gstreamer1.0-plugins-ugly-1.16.2-2ubuntu0.1-esm1.md) | Aug 9, 2026 |
| Linux | gstreamer1.0-plugins-ugly Ubuntu 22.04.1 LTS (jammy) | 1.20.1-1ubuntu0.1~esm1 | [gstreamer1.0-plugins-ugly 1.20.1-1ubuntu0.1~esm1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-gstreamer1.0-plugins-ugly-1.20.1-1ubuntu0.1-esm1.md) | Aug 9, 2026 |

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Data as of 2026-11-08T13:06:02Z 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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