LowFix available

Various packet overreads in mysqlnd_writeprotocol.c

Type: advisorySource: OSV1 source record

The mysqlnd wire protocol parser reads fields out of server packets before checking that the packet still holds enough bytes for them. A malicious or compromised MySQL server can send a truncated packet and make the client read past the end of the packet buffer, which is undefined behaviour and can crash the process.

Announced 1 Oct 2026Group revision 1

Original source ↗

BIT-libphp-2025-1218

Primary source · Revision 3

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: osv:BIT-libphp-2025-1218

libphp

Source reference: /affected/0/package/name

Affected versions: Not stated in this record
Fixed versions: 8.2.34
Source reference: /affected/0/ranges
8.3.35
Source reference: /affected/0/ranges
8.4.26
Source reference: /affected/0/ranges
8.5.11
Source reference: /affected/0/ranges
Prerequisites: Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "ranges": [
      {
        "type": "SEMVER",
        "events": [
          {
            "introduced": "8.2.0"
          },
          {
            "fixed": "8.2.34"
          },
          {
            "introduced": "8.3.0"
          },
          {
            "fixed": "8.3.35"
          },
          {
            "introduced": "8.4.0"
          },
          {
            "fixed": "8.4.26"
          },
          {
            "introduced": "8.5.0"
          },
          {
            "fixed": "8.5.11"
          }
        ]
      }
    ],
    "package": {
      "name": "libphp",
      "purl": "pkg:bitnami/libphp",
      "ecosystem": "Bitnami"
    },
    "severity": [
      {
        "type": "CVSS_V3",
        "score": "CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:L/I:N/A:N"
      }
    ],
    "database_specific": {
      "source": "https://github.com/bitnami/vulndb/tree/main/data/libphp/BIT-libphp-2025-1218.json"
    }
  }
]