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rsync — security advisory

Type: advisorySources: OSVAdvisory ID: DEBIAN-CVE-2024-12085

A flaw was found in rsync which could be triggered when rsync compares file checksums. This flaw allows an attacker to manipulate the checksum length (s2length) to cause a comparison between a checksum and uninitialized memory and leak one byte of uninitialized stack data at a time.

Products
rsync
Affected versions
3.2.7-1
Fixed versions
3.2.7-1+deb12u1, 3.3.0+ds1-3
CVEs
CVE-2024-12085
Confirmed fixed CVEs
Not specified
Updated in this feed
30 Oct 2026, 09:03 UTC · Revision 1

Source evidence

DEBIAN-CVE-2024-12085

core-osv · Original source

Published 14 Jan 2025, 18:15 UTC

A flaw was found in rsync which could be triggered when rsync compares file checksums. This flaw allows an attacker to manipulate the checksum length (s2length) to cause a comparison between a checksum and uninitialized memory and leak one byte of uninitialized stack data at a time.

osv:DEBIAN-CVE-2024-12085

rsync

Fixed versions: 3.2.7-1+deb12u1

rsync

Fixed versions: 3.3.0+ds1-3

rsync

Fixed versions: 3.3.0+ds1-3

Complete source record
{
  "id": "667c44d2ea78fafb1420d63cb9895a444d9f790c78eb20238d545b628f73f993",
  "url": "https://osv.dev/vulnerability/DEBIAN-CVE-2024-12085",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "DEBIAN-CVE-2024-12085",
    "summary": "A flaw was found in rsync which could be triggered when rsync compares file checksums. This flaw allows an attacker to manipulate the checksum length (s2length) to cause a comparison between a checksum and uninitialized memory and leak one byte of uninitialized stack data at a time.",
    "evidence": "osv:DEBIAN-CVE-2024-12085",
    "products": [
      {
        "name": {
          "value": "rsync",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "3.2.7-1+deb12u1",
            "evidence": "/affected/0/ranges"
          }
        ],
        "affected_versions": [
          {
            "value": "3.2.7-1",
            "evidence": "/affected/0/versions"
          }
        ]
      },
      {
        "name": {
          "value": "rsync",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "3.3.0+ds1-3",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "rsync",
          "evidence": "/affected/2/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "3.3.0+ds1-3",
            "evidence": "/affected/2/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "high",
    "structured": {
      "id": "DEBIAN-CVE-2024-12085",
      "aliases": [
        "DEBIAN-CVE-2024-12085"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "3.2.7-1+deb12u1"
                }
              ]
            }
          ],
          "package": {
            "name": "rsync",
            "purl": "pkg:deb/debian/rsync?arch=source&distro=bookworm",
            "ecosystem": "Debian:12"
          },
          "versions": [
            "3.2.7-1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2024-12085.json"
          },
          "ecosystem_specific": {
            "urgency": "not yet assigned"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "3.3.0+ds1-3"
                }
              ]
            }
          ],
          "package": {
            "name": "rsync",
            "purl": "pkg:deb/debian/rsync?arch=source&distro=trixie",
            "ecosystem": "Debian:13"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2024-12085.json"
          },
          "ecosystem_specific": {
            "urgency": "not yet assigned"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "3.3.0+ds1-3"
                }
              ]
            }
          ],
          "package": {
            "name": "rsync",
            "purl": "pkg:deb/debian/rsync?arch=source&distro=forky",
            "ecosystem": "Debian:14"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2024-12085.json"
          },
          "ecosystem_specific": {
            "urgency": "not yet assigned"
          }
        }
      ],
      "modified": "2026-10-13T09:47:41.451454733Z",
      "provider": "osv",
      "upstream": [
        "CVE-2024-12085"
      ],
      "references": [
        "https://security-tracker.debian.org/tracker/CVE-2024-12085"
      ]
    },
    "related_cves": [
      {
        "value": "CVE-2024-12085",
        "evidence": "/upstream"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 307587,
  "published_at": "2025-01-14T18:15:25.123+00:00"
}