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OpenPrinting CUPS vulnerable to heap buffer overflow

Type: advisorySources: OSV

OpenPrinting CUPS is an open source printing system. In versions 2.4.2 and prior, a heap buffer overflow vulnerability would allow a remote attacker to launch a denial of service (DoS) attack. A buffer overflow vulnerability in the function `format_log_line` could allow remote attackers to cause a DoS on the affected system. Exploitation of the vulnerability can be triggered when the configuration file `cupsd.conf` sets the value of `loglevel `to `DEBUG`. No known patches or workarounds exist at time of publication.

Products
Not specified
Affected versions
Not specified
Fixed versions
Not specified
CVEs
CVE-2023-32324
Confirmed fixed CVEs
Not specified
Updated in this feed
3 Nov 2026, 05:46 UTC · Revision 1

Source evidence

OpenPrinting CUPS vulnerable to heap buffer overflow

core-osv · Original source

Published 1 Jun 2023, 16:04 UTC

OpenPrinting CUPS is an open source printing system. In versions 2.4.2 and prior, a heap buffer overflow vulnerability would allow a remote attacker to launch a denial of service (DoS) attack. A buffer overflow vulnerability in the function `format_log_line` could allow remote attackers to cause a DoS on the affected system. Exploitation of the vulnerability can be triggered when the configuration file `cupsd.conf` sets the value of `loglevel `to `DEBUG`. No known patches or workarounds exist at time of publication.

osv:CVE-2023-32324
Complete source record
{
  "id": "bcda329d8306a59762e94bb87b38ad90215f7b4ef069555c3ea784ccd13728c9",
  "url": "https://osv.dev/vulnerability/CVE-2023-32324",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "OpenPrinting CUPS vulnerable to heap buffer overflow",
    "summary": "OpenPrinting CUPS is an open source printing system. In versions 2.4.2 and prior, a heap buffer overflow vulnerability would allow a remote attacker to launch a denial of service (DoS) attack. A buffer overflow vulnerability in the function `format_log_line` could allow remote attackers to cause a DoS on the affected system. Exploitation of the vulnerability can be triggered when the configuration file `cupsd.conf` sets the value of `loglevel `to `DEBUG`. No known patches or workarounds exist at time of publication.",
    "evidence": "osv:CVE-2023-32324",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2023-32324",
      "aliases": [
        "CVE-2023-32324",
        "GHSA-cxc6-w2g7-69p7"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/openprinting/cups",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "last_affected": "12ff481989924fc82ffdf1b8699753a486a33547"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "2.4.2"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StringRangeExpression"
                  },
                  {
                    "cpe": "cpe:2.3:a:openprinting:cups:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "2.4.2"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v2.4.2",
            "v2.4.1",
            "v2.4.0",
            "v2.4rc1",
            "v2.4b1",
            "v2.3.3op2",
            "v2.3.3op1",
            "v2.3.3",
            "v2.3.1",
            "v2.3.0",
            "v2.3rc1",
            "v2.3b8",
            "v2.3b7",
            "v2.3b6",
            "v2.3b5",
            "v2.3b4",
            "v2.3b3",
            "v2.3b2",
            "v2.3b1",
            "v2.2.6",
            "v2.2.5",
            "v2.2.4",
            "v2.2.3",
            "v2.2.2",
            "v2.2.1",
            "v2.2.0",
            "v2.2rc1",
            "v2.2b2",
            "v2.2b1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-32324.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:26.493612588Z",
      "provider": "osv",
      "references": [
        "https://lists.debian.org/debian-lts-announce/2023/06/msg00001.html",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/32xxx/CVE-2023-32324.json",
        "https://github.com/OpenPrinting/cups/security/advisories/GHSA-cxc6-w2g7-69p7",
        "https://nvd.nist.gov/vuln/detail/CVE-2023-32324"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-122",
          "CWE-787"
        ],
        "cna_assigner": "GitHub_M",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/32xxx/CVE-2023-32324.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2023-32324",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 492836,
  "published_at": "2023-06-01T16:04:10.994+00:00"
}