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php8.2 — security advisory

Type: advisorySources: OSVAdvisory ID: DEBIAN-CVE-2023-0568

In PHP 8.0.X before 8.0.28, 8.1.X before 8.1.16 and 8.2.X before 8.2.3, core path resolution function allocate buffer one byte too small. When resolving paths with lengths close to system MAXPATHLEN setting, this may lead to the byte after the allocated buffer being overwritten with NUL value, which might lead to unauthorized data access or modification.

Products
php8.2
Affected versions
Not specified
Fixed versions
8.2.4-1
CVEs
CVE-2023-0568
Confirmed fixed CVEs
Not specified
Updated in this feed
1 Nov 2026, 15:38 UTC · Revision 1

Source evidence

DEBIAN-CVE-2023-0568

core-osv · Original source

Published 16 Feb 2023, 07:15 UTC

In PHP 8.0.X before 8.0.28, 8.1.X before 8.1.16 and 8.2.X before 8.2.3, core path resolution function allocate buffer one byte too small. When resolving paths with lengths close to system MAXPATHLEN setting, this may lead to the byte after the allocated buffer being overwritten with NUL value, which might lead to unauthorized data access or modification.

osv:DEBIAN-CVE-2023-0568

php8.2

Fixed versions: 8.2.4-1

Complete source record
{
  "id": "d4c21c3d104ae2ae85b1118b2c02fe50fc10ea63c1b36d25eea57b02ce445ff2",
  "url": "https://osv.dev/vulnerability/DEBIAN-CVE-2023-0568",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "DEBIAN-CVE-2023-0568",
    "summary": "In PHP 8.0.X before 8.0.28, 8.1.X before 8.1.16 and 8.2.X before 8.2.3, core path resolution function allocate buffer one byte too small. When resolving paths with lengths close to system MAXPATHLEN setting, this may lead to the byte after the allocated buffer being overwritten with NUL value, which might lead to unauthorized data access or modification.",
    "evidence": "osv:DEBIAN-CVE-2023-0568",
    "products": [
      {
        "name": {
          "value": "php8.2",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "8.2.4-1",
            "evidence": "/affected/0/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "high",
    "structured": {
      "id": "DEBIAN-CVE-2023-0568",
      "aliases": [
        "DEBIAN-CVE-2023-0568"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "8.2.4-1"
                }
              ]
            }
          ],
          "package": {
            "name": "php8.2",
            "purl": "pkg:deb/debian/php8.2?arch=source&distro=bookworm",
            "ecosystem": "Debian:12"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2023-0568.json"
          },
          "ecosystem_specific": {
            "urgency": "not yet assigned"
          }
        }
      ],
      "modified": "2026-10-26T18:01:17.911125033Z",
      "provider": "osv",
      "upstream": [
        "CVE-2023-0568"
      ],
      "references": [
        "https://security-tracker.debian.org/tracker/CVE-2023-0568"
      ]
    },
    "related_cves": [
      {
        "value": "CVE-2023-0568",
        "evidence": "/upstream"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 455433,
  "published_at": "2023-02-16T07:15:10.327+00:00"
}