usn-8102-2
Vulnerability from osv_ubuntu
Published
2026-03-17 22:33
Modified
2026-04-27 14:11
Summary
snapd regression
Details

USN-8102-1 fixed a vulnerability in snapd. The update caused a regresision for Ubuntu 24.04 LTS while installing the package. This update fixes the problem.

We apologize for the inconvenience.

Original advisory details:

Qualys discovered that snapd incorrectly handled certain operations in the snap's private /tmp directory. If systemd-tmpfiles is enabled to automatically clean up this directory, a local attacker could possibly use this issue to re-create the deleted directory, resulting in privilege escalation.

References
To clipboard 

{
  "affected": [
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2026-3888",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "high",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:24.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "golang-github-snapcore-snapd-dev",
            "binary_version": "2.73+ubuntu24.04.2"
          },
          {
            "binary_name": "golang-github-ubuntu-core-snappy-dev",
            "binary_version": "2.73+ubuntu24.04.2"
          },
          {
            "binary_name": "snap-confine",
            "binary_version": "2.73+ubuntu24.04.2"
          },
          {
            "binary_name": "snapd",
            "binary_version": "2.73+ubuntu24.04.2"
          },
          {
            "binary_name": "snapd-xdg-open",
            "binary_version": "2.73+ubuntu24.04.2"
          },
          {
            "binary_name": "ubuntu-core-launcher",
            "binary_version": "2.73+ubuntu24.04.2"
          },
          {
            "binary_name": "ubuntu-core-snapd-units",
            "binary_version": "2.73+ubuntu24.04.2"
          },
          {
            "binary_name": "ubuntu-snappy",
            "binary_version": "2.73+ubuntu24.04.2"
          },
          {
            "binary_name": "ubuntu-snappy-cli",
            "binary_version": "2.73+ubuntu24.04.2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:24.04:LTS",
        "name": "snapd",
        "purl": "pkg:deb/ubuntu/snapd@2.73+ubuntu24.04.2?arch=source\u0026distro=noble"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.73+ubuntu24.04.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.60.4+23.10",
        "2.61.3+24.04",
        "2.62+24.04build1",
        "2.63+24.04",
        "2.63+24.04ubuntu0.1",
        "2.63.1+24.04",
        "2.65.3+24.04",
        "2.66.1+24.04",
        "2.67.1+24.04",
        "2.68.5+ubuntu24.04.1",
        "2.71+ubuntu24.04",
        "2.72+ubuntu24.04",
        "2.73+ubuntu24.04",
        "2.73+ubuntu24.04.1"
      ]
    }
  ],
  "aliases": [],
  "details": "USN-8102-1 fixed a vulnerability in snapd. The update caused a regresision for\nUbuntu 24.04 LTS while installing the package. This update fixes the problem.\n\nWe apologize for the inconvenience.\n\nOriginal advisory details:\n\nQualys discovered that snapd incorrectly handled certain operations in the\nsnap\u0027s private /tmp directory. If systemd-tmpfiles is enabled to automatically\nclean up this directory, a local attacker could possibly use this issue to\nre-create the deleted directory, resulting in privilege escalation.\n",
  "id": "USN-8102-2",
  "modified": "2026-04-27T14:11:51Z",
  "published": "2026-03-17T22:33:11Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-8102-2"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-3888"
    },
    {
      "type": "REPORT",
      "url": "https://launchpad.net/bugs/2144728"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "snapd regression",
  "upstream": [
    "UBUNTU-CVE-2026-3888"
  ]
}



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