# CVE-2020-35738: libwavpack1: WavPack 5.3.0 has an out-of-bounds write in WavpackPackSamples in pack_utils.c because of an integer overflow in a ma...

CVE-2020-35738 is fixed in 2 products on 1 platform, first by libwavpack1 5.1.0-2ubuntu1.5, released December 27, 2020. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2020-35738
- Priority: Routine
- CVSS: n/a (Medium)
- EPSS: 0.0121
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Dec 27, 2020

## Description

WavPack 5.3.0 has an out-of-bounds write in WavpackPackSamples in pack_utils.c because of an integer overflow in a malloc argument. NOTE: some third-parties claim that there are later "unofficial" releases through 5.3.2, which are also affected.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | libwavpack1 Ubuntu 18.04.6 LTS (bionic) | 5.1.0-2ubuntu1.5 | [libwavpack1 5.1.0-2ubuntu1.5](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libwavpack1-5.1.0-2ubuntu1.5.md) | Dec 27, 2020 |
| Linux | libwavpack1 Ubuntu 20.04 LTS (focal) | 5.2.0-1ubuntu0.1 | [libwavpack1 5.2.0-1ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libwavpack1-5.2.0-1ubuntu0.1.md) | Dec 27, 2020 |
| Linux | wavpack Ubuntu 18.04.6 LTS (bionic) | 5.1.0-2ubuntu1.5 | [wavpack 5.1.0-2ubuntu1.5](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-wavpack-5.1.0-2ubuntu1.5.md) | Dec 27, 2020 |
| Linux | wavpack Ubuntu 20.04 LTS (focal) | 5.2.0-1ubuntu0.1 | [wavpack 5.2.0-1ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-wavpack-5.2.0-1ubuntu0.1.md) | Dec 27, 2020 |

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