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sudo — security advisory

Type: advisorySources: OSVAdvisory ID: ALPINE-CVE-2022-43995

Sudo 1.8.0 through 1.9.12, with the crypt() password backend, contains a plugins/sudoers/auth/passwd.c array-out-of-bounds error that can result in a heap-based buffer over-read. This can be triggered by arbitrary local users with access to Sudo by entering a password of seven characters or fewer. The impact could vary depending on the system libraries, compiler, and processor architecture.

Products
sudo
Affected versions
Not specified
Fixed versions
1.9.12-r1
CVEs
CVE-2022-43995
Confirmed fixed CVEs
Not specified
Updated in this feed
30 Oct 2026, 14:19 UTC · Revision 1

Source evidence

ALPINE-CVE-2022-43995

core-osv · Original source

Published 2 Nov 2022, 14:15 UTC

Sudo 1.8.0 through 1.9.12, with the crypt() password backend, contains a plugins/sudoers/auth/passwd.c array-out-of-bounds error that can result in a heap-based buffer over-read. This can be triggered by arbitrary local users with access to Sudo by entering a password of seven characters or fewer. The impact could vary depending on the system libraries, compiler, and processor architecture.

osv:ALPINE-CVE-2022-43995

sudo

Fixed versions: 1.9.12-r1

sudo

Fixed versions: 1.9.12-r1

Complete source record
{
  "id": "8770c3b1342bf6c3193f9a0911a1a9ca6d67f16e773451b90ea468aaa6812882",
  "url": "https://osv.dev/vulnerability/ALPINE-CVE-2022-43995",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "ALPINE-CVE-2022-43995",
    "summary": "Sudo 1.8.0 through 1.9.12, with the crypt() password backend, contains a plugins/sudoers/auth/passwd.c array-out-of-bounds error that can result in a heap-based buffer over-read. This can be triggered by arbitrary local users with access to Sudo by entering a password of seven characters or fewer. The impact could vary depending on the system libraries, compiler, and processor architecture.",
    "evidence": "osv:ALPINE-CVE-2022-43995",
    "products": [
      {
        "name": {
          "value": "sudo",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "1.9.12-r1",
            "evidence": "/affected/0/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "sudo",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "1.9.12-r1",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "high",
    "structured": {
      "id": "ALPINE-CVE-2022-43995",
      "aliases": [
        "ALPINE-CVE-2022-43995"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "1.8.0"
                },
                {
                  "fixed": "1.9.12-r1"
                }
              ]
            }
          ],
          "package": {
            "name": "sudo",
            "purl": "pkg:apk/alpine/sudo?arch=source",
            "ecosystem": "Alpine:v3.14"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2022-43995.json"
          },
          "ecosystem_specific": {}
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "1.8.0"
                },
                {
                  "fixed": "1.9.12-r1"
                }
              ]
            }
          ],
          "package": {
            "name": "sudo",
            "purl": "pkg:apk/alpine/sudo?arch=source",
            "ecosystem": "Alpine:v3.15"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2022-43995.json"
          },
          "ecosystem_specific": {}
        }
      ],
      "modified": "2026-10-15T07:17:54.272651752Z",
      "provider": "osv",
      "upstream": [
        "CVE-2022-43995"
      ],
      "references": [
        "https://security.alpinelinux.org/vuln/CVE-2022-43995"
      ]
    },
    "related_cves": [
      {
        "value": "CVE-2022-43995",
        "evidence": "/upstream"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 322042,
  "published_at": "2022-11-02T14:15:16.187+00:00"
}