# DSA-5111-1: zlib security update

DSA-5111-1, released April 1, 2022, fixes 1 CVE in zlib (version 1:1.2.11.dfsg-2+deb11u1). None of them is reported as exploited. Patch Radar priority: High. The product is no longer supported.

- Web page: https://patchblox.com/security/fix/linux/dsa-5111-1
- Platform: Linux
- Released: Apr 1, 2022
- Priority: High (Closes CVE-2018-25032, high severity)
- CVEs: 1, exploited: 0, on CISA KEV: 0
- Vendor advisory: https://security-tracker.debian.org/tracker/CVE-2018-25032

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [zlib](https://patchblox.com/security/data/product/linux/zlib.md) | Debian 11.6 (bullseye) | 1:1.2.11.dfsg-2+deb11u1 |

## CVEs this fix closes

| CVE | Priority | Title | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2018-25032](https://patchblox.com/security/data/cve/CVE-2018-25032.md) | High | Python 3.8 and 4 others: Out-of-bounds Write | 8.2 | 0.5173 |  |

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Data as of 2026-11-07T06:34:28Z 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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo