# CVE-2023-46228: zchunk: zchunk before 1.3.2 has multiple integer overflows via malformed zchunk files to lib/comp/comp.c, lib/comp/zstd/zstd....

CVE-2023-46228 is fixed in zchunk on 1 platform, first by DEBIAN-CVE-2023-46228, released October 19, 2023. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2023-46228
- Priority: High
- CVSS: 7.8 (high)
- EPSS: 0.0028
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Oct 19, 2023

## Description

zchunk before 1.3.2 has multiple integer overflows via malformed zchunk files to lib/comp/comp.c, lib/comp/zstd/zstd.c, lib/dl/multipart.c, or lib/header.c.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | zchunk Debian 13.5 (trixie) | 1.3.2+ds1-1 | [DEBIAN-CVE-2023-46228](https://patchblox.com/security/data/fix/linux/debian-cve-2023-46228.md) | Oct 19, 2023 |
| Linux | zchunk Debian 14 | 1.3.2+ds1-1 | [DEBIAN-CVE-2023-46228](https://patchblox.com/security/data/fix/linux/debian-cve-2023-46228.md) | Oct 19, 2023 |

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Data as of 2026-11-09T01:18:40Z 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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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