# CVE-2024-12084: rsync: A heap-based buffer overflow flaw was found in the rsync daemon

CVE-2024-12084 is fixed in rsync on 1 platform, first by rsync 3.2.7-0ubuntu0.22.04.3, released January 8, 2025. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2024-12084
- Priority: High
- CVSS: 9.8 (High)
- EPSS: 0.7251
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Jan 8, 2025

## Description

A heap-based buffer overflow flaw was found in the rsync daemon. This issueis due to improper handling of attacker-controlled checksum lengths(s2length) in the code. When MAX_DIGEST_LEN exceeds the fixed SUM_LENGTH(16 bytes), an attacker can write out of bounds in the sum2 buffer.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | rsync Debian 12.15 (bookworm) | 3.2.7-1+deb12u1 | [DSA-5843-1](https://patchblox.com/security/data/fix/linux/dsa-5843-1.md) | Jan 14, 2025 |
| Linux | rsync Debian 13.5 (trixie) | 3.3.0+ds1-3 | [DEBIAN-CVE-2024-12084](https://patchblox.com/security/data/fix/linux/debian-cve-2024-12084.md) | Jan 15, 2025 |
| Linux | rsync Debian 14 | 3.3.0+ds1-3 | [DEBIAN-CVE-2024-12084](https://patchblox.com/security/data/fix/linux/debian-cve-2024-12084.md) | Jan 15, 2025 |
| Linux | rsync RHEL 10 | 3.4.1-2.el10 | [RHBA-2025:6470](https://patchblox.com/security/data/fix/linux/rhba-2025-6470.md) | Jan 14, 2025 |
| Linux | rsync Ubuntu 22.04.1 LTS (jammy) | 3.2.7-0ubuntu0.22.04.3 | [rsync 3.2.7-0ubuntu0.22.04.3](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-rsync-3.2.7-0ubuntu0.22.04.3.md) | Jan 8, 2025 |
| Linux | rsync Ubuntu 24.04.5 LTS (noble) | 3.2.7-1ubuntu1.1 | [rsync 3.2.7-1ubuntu1.1](https://patchblox.com/security/data/fix/linux/ubuntu-noble-rsync-3.2.7-1ubuntu1.1.md) | Jan 8, 2025 |
| Linux | rsync Ubuntu 24.10 (oracular) | 3.3.0-1ubuntu0.1 | [rsync 3.3.0-1ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-oracular-rsync-3.3.0-1ubuntu0.1.md) | Jan 16, 2026 |
| Linux | rsync opensuse-leap 15.6 | 3.2.7-150600.3.8.1 | [SUSE-SU-2025:0156-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-0156-1.md) | Jan 17, 2025 |
| Linux | rsync sles 15.6 | 3.2.7-150600.3.8.1 | [SUSE-SU-2025:0156-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-0156-1.md) | Jan 17, 2025 |

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Data as of 2026-11-11T01:20:23Z 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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