vuln-ubuntu/data/osv/usn/USN-5292-2.json

{
  "schema_version": "1.7.0",
  "id": "USN-5292-2",
  "summary": "snapd vulnerabilities",
  "details": "USN-5292-1 fixed vulnerabilities in snapd. This update provides the\ncorresponding update for the riscv64 architecture.\n\nOriginal advisory details:\n\n James Troup discovered that snap did not properly manage the permissions for\n the snap directories. A local attacker could possibly use this issue to expose\n sensitive information. (CVE-2021-3155)\n \n Ian Johnson discovered that snapd did not properly validate content interfaces\n and layout paths. A local attacker could possibly use this issue to inject\n arbitrary AppArmor policy rules, resulting in a bypass of intended access\n restrictions. (CVE-2021-4120)\n \n The Qualys Research Team discovered that snapd did not properly validate the\n location of the snap-confine binary. A local attacker could possibly use this\n issue to execute other arbitrary binaries and escalate privileges.\n (CVE-2021-44730)\n \n The Qualys Research Team discovered that a race condition existed in the snapd\n snap-confine binary when preparing a private mount namespace for a snap. A\n local attacker could possibly use this issue to escalate privileges and\n execute arbitrary code. (CVE-2021-44731)\n",
  "aliases": [],
  "upstream": [
    "UBUNTU-CVE-2021-3155",
    "UBUNTU-CVE-2021-4120",
    "UBUNTU-CVE-2021-44730",
    "UBUNTU-CVE-2021-44731"
  ],
  "related": [],
  "published": "2022-02-18T01:07:38Z",
  "modified": "2026-02-10T04:42:29Z",
  "affected": [
    {
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "snapd",
        "purl": "pkg:deb/ubuntu/snapd@2.54.3+20.04.1?arch=source&distro=focal"
      },
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.54.3+20.04.1"
            }
          ]
        }
      ],
      "versions": [
        "2.41+19.10.1",
        "2.42.1+20.04",
        "2.43.3+git1.8109f8",
        "2.44~pre1+20.04",
        "2.44+20.04",
        "2.44.2+20.04",
        "2.44.3+20.04",
        "2.45.1+20.04",
        "2.45.1+20.04.2",
        "2.46.1+20.04",
        "2.47.1+20.04",
        "2.48+20.04",
        "2.48.3+20.04",
        "2.49.2+20.04",
        "2.51.1+20.04ubuntu2",
        "2.54.2+20.04ubuntu2",
        "2.54.3+20.04"
      ],
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "golang-github-snapcore-snapd-dev",
            "binary_version": "2.54.3+20.04.1"
          },
          {
            "binary_name": "golang-github-ubuntu-core-snappy-dev",
            "binary_version": "2.54.3+20.04.1"
          },
          {
            "binary_name": "snap-confine",
            "binary_version": "2.54.3+20.04.1"
          },
          {
            "binary_name": "snapd",
            "binary_version": "2.54.3+20.04.1"
          },
          {
            "binary_name": "snapd-xdg-open",
            "binary_version": "2.54.3+20.04.1"
          },
          {
            "binary_name": "ubuntu-core-launcher",
            "binary_version": "2.54.3+20.04.1"
          },
          {
            "binary_name": "ubuntu-core-snapd-units",
            "binary_version": "2.54.3+20.04.1"
          },
          {
            "binary_name": "ubuntu-snappy",
            "binary_version": "2.54.3+20.04.1"
          },
          {
            "binary_name": "ubuntu-snappy-cli",
            "binary_version": "2.54.3+20.04.1"
          }
        ],
        "availability": "No subscription required"
      },
      "database_specific": {
        "cves_map": {
          "ecosystem": "Ubuntu:20.04:LTS",
          "cves": [
            {
              "id": "CVE-2021-3155",
              "severity": [
                {
                  "type": "CVSS_V3",
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N"
                },
                {
                  "type": "CVSS_V3",
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N"
                },
                {
                  "type": "Ubuntu",
                  "score": "medium"
                }
              ]
            },
            {
              "id": "CVE-2021-4120",
              "severity": [
                {
                  "type": "CVSS_V3",
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H"
                },
                {
                  "type": "CVSS_V3",
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
                },
                {
                  "type": "Ubuntu",
                  "score": "medium"
                }
              ]
            },
            {
              "id": "CVE-2021-44730",
              "severity": [
                {
                  "type": "CVSS_V3",
                  "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H"
                },
                {
                  "type": "CVSS_V3",
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H"
                },
                {
                  "type": "Ubuntu",
                  "score": "high"
                }
              ]
            },
            {
              "id": "CVE-2021-44731",
              "severity": [
                {
                  "type": "CVSS_V3",
                  "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H"
                },
                {
                  "type": "CVSS_V3",
                  "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H"
                },
                {
                  "type": "Ubuntu",
                  "score": "high"
                }
              ]
            }
          ]
        }
      }
    }
  ],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-5292-2"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2021-3155"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2021-4120"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2021-44730"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2021-44731"
    }
  ]
}