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snapd — security advisory

Type: advisorySources: OSVAdvisory ID: DEBIAN-CVE-2020-27352

When generating the systemd service units for the docker snap (and other similar snaps), snapd does not specify Delegate=yes - as a result systemd will move processes from the containers created and managed by these snaps into the cgroup of the main daemon within the snap itself when reloading system units. This may grant additional privileges to a container within the snap that were not originally intended.

Products
snapd
Affected versions
Not specified
Fixed versions
2.49-1
CVEs
CVE-2020-27352
Confirmed fixed CVEs
Not specified
Updated in this feed
1 Nov 2026, 13:46 UTC · Revision 1

Source evidence

DEBIAN-CVE-2020-27352

core-osv · Original source

Published 21 Jun 2024, 20:15 UTC

When generating the systemd service units for the docker snap (and other similar snaps), snapd does not specify Delegate=yes - as a result systemd will move processes from the containers created and managed by these snaps into the cgroup of the main daemon within the snap itself when reloading system units. This may grant additional privileges to a container within the snap that were not originally intended.

osv:DEBIAN-CVE-2020-27352

snapd

Fixed versions: 2.49-1

snapd

Fixed versions: 2.49-1

snapd

Fixed versions: 2.49-1

Complete source record
{
  "id": "2273a64322b964d67bc8774b1a3e8fb14715320a99aacd44e36ef8ceb11a4bf9",
  "url": "https://osv.dev/vulnerability/DEBIAN-CVE-2020-27352",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "DEBIAN-CVE-2020-27352",
    "summary": "When generating the systemd service units for the docker snap (and other similar snaps), snapd does not specify Delegate=yes - as a result systemd will move processes from the containers created and managed by these snaps into the cgroup of the main daemon within the snap itself when reloading system units. This may grant additional privileges to a container within the snap that were not originally intended.",
    "evidence": "osv:DEBIAN-CVE-2020-27352",
    "products": [
      {
        "name": {
          "value": "snapd",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "2.49-1",
            "evidence": "/affected/0/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "snapd",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "2.49-1",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "snapd",
          "evidence": "/affected/2/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "2.49-1",
            "evidence": "/affected/2/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "high",
    "structured": {
      "id": "DEBIAN-CVE-2020-27352",
      "aliases": [
        "DEBIAN-CVE-2020-27352"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "2.49-1"
                }
              ]
            }
          ],
          "package": {
            "name": "snapd",
            "purl": "pkg:deb/debian/snapd?arch=source&distro=bookworm",
            "ecosystem": "Debian:12"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2020-27352.json"
          },
          "ecosystem_specific": {
            "urgency": "not yet assigned"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "2.49-1"
                }
              ]
            }
          ],
          "package": {
            "name": "snapd",
            "purl": "pkg:deb/debian/snapd?arch=source&distro=trixie",
            "ecosystem": "Debian:13"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2020-27352.json"
          },
          "ecosystem_specific": {
            "urgency": "not yet assigned"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "2.49-1"
                }
              ]
            }
          ],
          "package": {
            "name": "snapd",
            "purl": "pkg:deb/debian/snapd?arch=source&distro=forky",
            "ecosystem": "Debian:14"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2020-27352.json"
          },
          "ecosystem_specific": {
            "urgency": "not yet assigned"
          }
        }
      ],
      "modified": "2026-10-26T12:02:42.010008491Z",
      "provider": "osv",
      "upstream": [
        "CVE-2020-27352"
      ],
      "references": [
        "https://security-tracker.debian.org/tracker/CVE-2020-27352"
      ]
    },
    "related_cves": [
      {
        "value": "CVE-2020-27352",
        "evidence": "/upstream"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 452814,
  "published_at": "2024-06-21T20:15:10.63+00:00"
}