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USN-5583-2 (UBUNTU-CVE-2022-2526)

Vulnerability from osv_ubuntu – Published: 2022-09-14 03:01 – Updated: 2026-04-22 07:37 – Source website
VLAI
Summary
systemd regression
Details

USN-5583-1 fixed vulnerabilities in systemd. Unfortunately this caused a regression by introducing networking problems for some users. This update fixes the problem.

We apologize for the inconvenience.

Original advisory details:

It was discovered that systemd incorrectly handled certain DNS requests, which leads to user-after-free vulnerability. An attacker could possibly use this issue to cause a crash or execute arbitrary code. (CVE-2022-2526)

References
To clipboard 

{
  "affected": [
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2022-2526",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:18.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "libnss-myhostname",
            "binary_version": "237-3ubuntu10.56"
          },
          {
            "binary_name": "libnss-mymachines",
            "binary_version": "237-3ubuntu10.56"
          },
          {
            "binary_name": "libnss-resolve",
            "binary_version": "237-3ubuntu10.56"
          },
          {
            "binary_name": "libnss-systemd",
            "binary_version": "237-3ubuntu10.56"
          },
          {
            "binary_name": "libpam-systemd",
            "binary_version": "237-3ubuntu10.56"
          },
          {
            "binary_name": "libsystemd0",
            "binary_version": "237-3ubuntu10.56"
          },
          {
            "binary_name": "libudev1",
            "binary_version": "237-3ubuntu10.56"
          },
          {
            "binary_name": "systemd",
            "binary_version": "237-3ubuntu10.56"
          },
          {
            "binary_name": "systemd-container",
            "binary_version": "237-3ubuntu10.56"
          },
          {
            "binary_name": "systemd-coredump",
            "binary_version": "237-3ubuntu10.56"
          },
          {
            "binary_name": "systemd-journal-remote",
            "binary_version": "237-3ubuntu10.56"
          },
          {
            "binary_name": "systemd-sysv",
            "binary_version": "237-3ubuntu10.56"
          },
          {
            "binary_name": "systemd-tests",
            "binary_version": "237-3ubuntu10.56"
          },
          {
            "binary_name": "udev",
            "binary_version": "237-3ubuntu10.56"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:18.04:LTS",
        "name": "systemd",
        "purl": "pkg:deb/ubuntu/systemd@237-3ubuntu10.56?arch=source\u0026distro=bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "237-3ubuntu10.56"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "234-2ubuntu12",
        "235-2ubuntu3",
        "235-3ubuntu2",
        "235-3ubuntu3",
        "237-3ubuntu3",
        "237-3ubuntu4",
        "237-3ubuntu6",
        "237-3ubuntu7",
        "237-3ubuntu8",
        "237-3ubuntu10",
        "237-3ubuntu10.2",
        "237-3ubuntu10.3",
        "237-3ubuntu10.4",
        "237-3ubuntu10.6",
        "237-3ubuntu10.9",
        "237-3ubuntu10.11",
        "237-3ubuntu10.12",
        "237-3ubuntu10.13",
        "237-3ubuntu10.15",
        "237-3ubuntu10.17",
        "237-3ubuntu10.19",
        "237-3ubuntu10.20",
        "237-3ubuntu10.21",
        "237-3ubuntu10.22",
        "237-3ubuntu10.23",
        "237-3ubuntu10.24",
        "237-3ubuntu10.25",
        "237-3ubuntu10.26",
        "237-3ubuntu10.28",
        "237-3ubuntu10.29",
        "237-3ubuntu10.31",
        "237-3ubuntu10.33",
        "237-3ubuntu10.38",
        "237-3ubuntu10.39",
        "237-3ubuntu10.40",
        "237-3ubuntu10.41",
        "237-3ubuntu10.42",
        "237-3ubuntu10.43",
        "237-3ubuntu10.44",
        "237-3ubuntu10.45",
        "237-3ubuntu10.46",
        "237-3ubuntu10.47",
        "237-3ubuntu10.48",
        "237-3ubuntu10.49",
        "237-3ubuntu10.50",
        "237-3ubuntu10.51",
        "237-3ubuntu10.52",
        "237-3ubuntu10.53",
        "237-3ubuntu10.54"
      ]
    }
  ],
  "aliases": [],
  "details": "USN-5583-1 fixed vulnerabilities in systemd. Unfortunately this caused a \nregression by introducing networking problems for some users. This update fixes\nthe problem.\n\nWe apologize for the inconvenience.\n\nOriginal advisory details:\n\n It was discovered that systemd incorrectly handled certain DNS requests, \n which leads to user-after-free vulnerability. An attacker could possibly use \n this issue to cause a crash or execute arbitrary code. (CVE-2022-2526)\n",
  "id": "USN-5583-2",
  "modified": "2026-04-22T07:37:02Z",
  "published": "2022-09-14T03:01:57Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-5583-2"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2022-2526"
    },
    {
      "type": "REPORT",
      "url": "https://launchpad.net/bugs/1988119"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "systemd regression",
  "upstream": [
    "UBUNTU-CVE-2022-2526"
  ]
}



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