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rxvt-unicode — security advisory

Type: advisorySources: OSVAdvisory ID: DEBIAN-CVE-2022-4170

The rxvt-unicode package is vulnerable to a remote code execution, in the Perl background extension, when an attacker can control the data written to the user's terminal and certain options are set.

Products
rxvt-unicode
Affected versions
9.30-2, 9.31-1, 9.31-2, 9.31-3, 9.31-3.1
Fixed versions
9.31-1
CVEs
CVE-2022-4170
Confirmed fixed CVEs
Not specified
Updated in this feed
30 Oct 2026, 14:52 UTC · Revision 1

Source evidence

DEBIAN-CVE-2022-4170

core-osv · Original source

Published 9 Dec 2022, 18:15 UTC

The rxvt-unicode package is vulnerable to a remote code execution, in the Perl background extension, when an attacker can control the data written to the user's terminal and certain options are set.

osv:DEBIAN-CVE-2022-4170

rxvt-unicode

Fixed versions: Not specified

rxvt-unicode

Fixed versions: 9.31-1

rxvt-unicode

Fixed versions: 9.31-1

Complete source record
{
  "id": "0f626b43e97c29b73dd64c8ab589c84ead0365516800be8f6254b0a186b91445",
  "url": "https://osv.dev/vulnerability/DEBIAN-CVE-2022-4170",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "DEBIAN-CVE-2022-4170",
    "summary": "The rxvt-unicode package is vulnerable to a remote code execution, in the Perl background extension, when an attacker can control the data written to the user's terminal and certain options are set.",
    "evidence": "osv:DEBIAN-CVE-2022-4170",
    "products": [
      {
        "name": {
          "value": "rxvt-unicode",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "9.30-2",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "9.31-1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "9.31-2",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "9.31-3",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "9.31-3.1",
            "evidence": "/affected/0/versions"
          }
        ]
      },
      {
        "name": {
          "value": "rxvt-unicode",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "9.31-1",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "rxvt-unicode",
          "evidence": "/affected/2/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "9.31-1",
            "evidence": "/affected/2/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "critical",
    "structured": {
      "id": "DEBIAN-CVE-2022-4170",
      "aliases": [
        "DEBIAN-CVE-2022-4170"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                }
              ]
            }
          ],
          "package": {
            "name": "rxvt-unicode",
            "purl": "pkg:deb/debian/rxvt-unicode?arch=source&distro=bookworm",
            "ecosystem": "Debian:12"
          },
          "versions": [
            "9.30-2",
            "9.31-1",
            "9.31-2",
            "9.31-3",
            "9.31-3.1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2022-4170.json"
          },
          "ecosystem_specific": {
            "urgency": "not yet assigned"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "9.31-1"
                }
              ]
            }
          ],
          "package": {
            "name": "rxvt-unicode",
            "purl": "pkg:deb/debian/rxvt-unicode?arch=source&distro=trixie",
            "ecosystem": "Debian:13"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2022-4170.json"
          },
          "ecosystem_specific": {
            "urgency": "not yet assigned"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "9.31-1"
                }
              ]
            }
          ],
          "package": {
            "name": "rxvt-unicode",
            "purl": "pkg:deb/debian/rxvt-unicode?arch=source&distro=forky",
            "ecosystem": "Debian:14"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2022-4170.json"
          },
          "ecosystem_specific": {
            "urgency": "not yet assigned"
          }
        }
      ],
      "modified": "2026-10-15T08:02:32.672093042Z",
      "provider": "osv",
      "upstream": [
        "CVE-2022-4170"
      ],
      "references": [
        "https://security-tracker.debian.org/tracker/CVE-2022-4170"
      ]
    },
    "related_cves": [
      {
        "value": "CVE-2022-4170",
        "evidence": "/upstream"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 323569,
  "published_at": "2022-12-09T18:15:20.327+00:00"
}