ghsa-f4r4-2gxf-88xj
Vulnerability from github
Published
2022-09-10 00:00
Modified
2022-09-16 00:00
Severity ?
9.8 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Details

A use-after-free vulnerability was found in systemd. This issue occurs due to the on_stream_io() function and dns_stream_complete() function in 'resolved-dns-stream.c' not incrementing the reference counting for the DnsStream object. Therefore, other functions and callbacks called can dereference the DNSStream object, causing the use-after-free when the reference is still used later.

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{
  "affected": [],
  "aliases": [
    "CVE-2022-2526"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2022-09-09T15:15:00Z",
    "severity": "CRITICAL"
  },
  "details": "A use-after-free vulnerability was found in systemd. This issue occurs due to the on_stream_io() function and dns_stream_complete() function in \u0027resolved-dns-stream.c\u0027 not incrementing the reference counting for the DnsStream object. Therefore, other functions and callbacks called can dereference the DNSStream object, causing the use-after-free when the reference is still used later.",
  "id": "GHSA-f4r4-2gxf-88xj",
  "modified": "2022-09-16T00:00:33Z",
  "published": "2022-09-10T00:00:26Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-2526"
    },
    {
      "type": "WEB",
      "url": "https://github.com/systemd/systemd/commit/d973d94dec349fb676fdd844f6fe2ada3538f27c"
    },
    {
      "type": "WEB",
      "url": "https://security.netapp.com/advisory/ntap-20221111-0005"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}


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