USN-7648-3 (UBUNTU-CVE-2025-1735)

Vulnerability from osv_ubuntu – Published: 2025-09-04 07:44 – Updated: 2026-06-25 10:46 – Source website
VLAI
Summary
php7.0, php7.2, php7.4 regression
Details

USN-7648-2 fixed vulnerabilities in PHP. The patch for CVE-2025-1735 caused a regression in php7.0, php7.2 and php7.4. This update fixes the problem.

We apologize for the inconvenience.

Original advisory details:

It was discovered that PHP incorrectly handled certain hostnames containing null characters. A remote attacker could possibly use this issue to bypass certain hostname validation checks. (CVE-2025-1220)

It was discovered that PHP incorrectly handled the pgsql and pdo_pgsql escaping functions. A remote attacker could possibly use this issue to cause PHP to crash, resulting in a denial of service. (CVE-2025-1735)

It was discovered that PHP incorrectly handled parsing certain XML data in SOAP extensions. A remote attacker could possibly use this issue to cause PHP to crash, resulting in a denial of service. (CVE-2025-6491)

References
To clipboard 

{
  "affected": [
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2025-1735",
              "severity": [
                {
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                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:Pro:16.04:LTS"
        }
      },
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                }
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        }
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                {
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                },
                {
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                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:Pro:20.04:LTS"
        }
      },
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          },
          {
            "binary_name": "php7.4-gd",
            "binary_version": "7.4.3-4ubuntu2.29+esm2"
          },
          {
            "binary_name": "php7.4-gmp",
            "binary_version": "7.4.3-4ubuntu2.29+esm2"
          },
          {
            "binary_name": "php7.4-imap",
            "binary_version": "7.4.3-4ubuntu2.29+esm2"
          },
          {
            "binary_name": "php7.4-interbase",
            "binary_version": "7.4.3-4ubuntu2.29+esm2"
          },
          {
            "binary_name": "php7.4-intl",
            "binary_version": "7.4.3-4ubuntu2.29+esm2"
          },
          {
            "binary_name": "php7.4-json",
            "binary_version": "7.4.3-4ubuntu2.29+esm2"
          },
          {
            "binary_name": "php7.4-ldap",
            "binary_version": "7.4.3-4ubuntu2.29+esm2"
          },
          {
            "binary_name": "php7.4-mbstring",
            "binary_version": "7.4.3-4ubuntu2.29+esm2"
          },
          {
            "binary_name": "php7.4-mysql",
            "binary_version": "7.4.3-4ubuntu2.29+esm2"
          },
          {
            "binary_name": "php7.4-odbc",
            "binary_version": "7.4.3-4ubuntu2.29+esm2"
          },
          {
            "binary_name": "php7.4-opcache",
            "binary_version": "7.4.3-4ubuntu2.29+esm2"
          },
          {
            "binary_name": "php7.4-pgsql",
            "binary_version": "7.4.3-4ubuntu2.29+esm2"
          },
          {
            "binary_name": "php7.4-phpdbg",
            "binary_version": "7.4.3-4ubuntu2.29+esm2"
          },
          {
            "binary_name": "php7.4-pspell",
            "binary_version": "7.4.3-4ubuntu2.29+esm2"
          },
          {
            "binary_name": "php7.4-readline",
            "binary_version": "7.4.3-4ubuntu2.29+esm2"
          },
          {
            "binary_name": "php7.4-snmp",
            "binary_version": "7.4.3-4ubuntu2.29+esm2"
          },
          {
            "binary_name": "php7.4-soap",
            "binary_version": "7.4.3-4ubuntu2.29+esm2"
          },
          {
            "binary_name": "php7.4-sqlite3",
            "binary_version": "7.4.3-4ubuntu2.29+esm2"
          },
          {
            "binary_name": "php7.4-sybase",
            "binary_version": "7.4.3-4ubuntu2.29+esm2"
          },
          {
            "binary_name": "php7.4-tidy",
            "binary_version": "7.4.3-4ubuntu2.29+esm2"
          },
          {
            "binary_name": "php7.4-xml",
            "binary_version": "7.4.3-4ubuntu2.29+esm2"
          },
          {
            "binary_name": "php7.4-xmlrpc",
            "binary_version": "7.4.3-4ubuntu2.29+esm2"
          },
          {
            "binary_name": "php7.4-xsl",
            "binary_version": "7.4.3-4ubuntu2.29+esm2"
          },
          {
            "binary_name": "php7.4-zip",
            "binary_version": "7.4.3-4ubuntu2.29+esm2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:20.04:LTS",
        "name": "php7.4",
        "purl": "pkg:deb/ubuntu/php7.4@7.4.3-4ubuntu2.29+esm2?arch=source\u0026distro=esm-infra/focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "7.4.3-4ubuntu2.29+esm2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "7.4.3-4build1",
        "7.4.3-4build2",
        "7.4.3-4ubuntu1",
        "7.4.3-4ubuntu1.1",
        "7.4.3-4ubuntu2.2",
        "7.4.3-4ubuntu2.4",
        "7.4.3-4ubuntu2.5",
        "7.4.3-4ubuntu2.6",
        "7.4.3-4ubuntu2.7",
        "7.4.3-4ubuntu2.8",
        "7.4.3-4ubuntu2.9",
        "7.4.3-4ubuntu2.10",
        "7.4.3-4ubuntu2.11",
        "7.4.3-4ubuntu2.12",
        "7.4.3-4ubuntu2.13",
        "7.4.3-4ubuntu2.15",
        "7.4.3-4ubuntu2.16",
        "7.4.3-4ubuntu2.17",
        "7.4.3-4ubuntu2.18",
        "7.4.3-4ubuntu2.19",
        "7.4.3-4ubuntu2.20",
        "7.4.3-4ubuntu2.22",
        "7.4.3-4ubuntu2.23",
        "7.4.3-4ubuntu2.24",
        "7.4.3-4ubuntu2.26",
        "7.4.3-4ubuntu2.28",
        "7.4.3-4ubuntu2.29",
        "7.4.3-4ubuntu2.29+esm1"
      ]
    }
  ],
  "aliases": [],
  "details": "USN-7648-2 fixed vulnerabilities in PHP. The patch for CVE-2025-1735\ncaused a regression in php7.0, php7.2 and php7.4. This update fixes\nthe problem.\n\nWe apologize for the inconvenience.\n\nOriginal advisory details:\n\n It was discovered that PHP incorrectly handled certain hostnames containing\n null characters. A remote attacker could possibly use this issue to bypass\n certain hostname validation checks. (CVE-2025-1220)\n\n It was discovered that PHP incorrectly handled the pgsql and pdo_pgsql\n escaping functions. A remote attacker could possibly use this issue to\n cause PHP to crash, resulting in a denial of service. (CVE-2025-1735)\n\n It was discovered that PHP incorrectly handled parsing certain XML data in\n SOAP extensions. A remote attacker could possibly use this issue to cause\n PHP to crash, resulting in a denial of service. (CVE-2025-6491)",
  "id": "USN-7648-3",
  "modified": "2026-06-25T10:46:53Z",
  "published": "2025-09-04T07:44:55Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-7648-3"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2025-1735"
    },
    {
      "type": "REPORT",
      "url": "https://launchpad.net/bugs/2121643"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "php7.0, php7.2, php7.4 regression",
  "upstream": [
    "UBUNTU-CVE-2025-1735"
  ]
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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