# CVE-2022-47021: libopusfile0: A null pointer dereference issue was discovered in functions op_get_data and op_open1 in opusfile.c in xiph opusfile...

CVE-2022-47021 is fixed in 2 products on 1 platform, first by libopusfile0 0.9+20170913-1ubuntu0.18.04.1~esm1, released January 20, 2023. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2022-47021
- Priority: High
- CVSS: 7.8 (Medium)
- EPSS: 0.0040
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Jan 20, 2023

## Description

A null pointer dereference issue was discovered in functions op_get_data and op_open1 in opusfile.c in xiph opusfile 0.9 thru 0.12 allows attackers to cause denial of service or other unspecified impacts.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | libopusfile0 Ubuntu 18.04.6 LTS (bionic) | 0.9+20170913-1ubuntu0.18.04.1~esm1 | [libopusfile0 0.9+20170913-1ubuntu0.18.04.1~esm1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libopusfile0-0.9-20170913-1ubuntu0.18.04.1-esm1.md) | Jan 20, 2023 |
| Linux | libopusfile0 Ubuntu 20.04 LTS (focal) | 0.9+20170913-1ubuntu0.20.04.1~esm1 | [libopusfile0 0.9+20170913-1ubuntu0.20.04.1~esm1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libopusfile0-0.9-20170913-1ubuntu0.20.04.1-esm1.md) | Jan 20, 2023 |
| Linux | libopusfile0 Ubuntu 22.04.1 LTS (jammy) | 0.9+20170913-1.1ubuntu0.1~esm1 | [libopusfile0 0.9+20170913-1.1ubuntu0.1~esm1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-libopusfile0-0.9-20170913-1.1ubuntu0.1-esm1.md) | Jan 20, 2023 |
| Linux | opusfile Debian 12.15 (bookworm) | 0.12-4 | [DEBIAN-CVE-2022-47021](https://patchblox.com/security/data/fix/linux/debian-cve-2022-47021.md) | Jan 20, 2023 |
| Linux | opusfile Debian 13.5 (trixie) | 0.12-4 | [DEBIAN-CVE-2022-47021](https://patchblox.com/security/data/fix/linux/debian-cve-2022-47021.md) | Jan 20, 2023 |
| Linux | opusfile Debian 14 | 0.12-4 | [DEBIAN-CVE-2022-47021](https://patchblox.com/security/data/fix/linux/debian-cve-2022-47021.md) | Jan 20, 2023 |

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Data as of 2026-11-09T07:25:28Z 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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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