In PHP versions:8.1.* before 8.1.33, 8.2.* before 8.2.29, 8.3.* before 8.3.23, 8.4.* before 8.4.10 some functions like fsockopen() lack validation that the hostname supplied does not contain null characters. This may lead to other functions like parse_url() treat the hostname in different way, thus opening way to security problems if the user code implements access checks before access using such functions.

The remote Fedora 42 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2025-2c344545bf advisory.

    **PHP version 8.4.10** (03 Jul 2025)

    **BcMath:**

    * Fixed bug [GH-18641](https://github.com/php/php-src/issues/18641) (Accessing a BcMath\Number property by     ref crashes). (nielsdos)

    **Core:**

    * Fixed bugs [GH-17711](https://github.com/php/php-src/issues/17711) and     [GH-18022](https://github.com/php/php-src/issues/18022) (Infinite recursion on deprecated attribute     evaluation) and [GH-18464](https://github.com/php/php-src/issues/18464) (Recursion protection for     deprecation constants not released on bailout). (DanielEScherzer and ilutov)
    * Fixed [GH-18695](https://github.com/php/php-src/issues/18695) (zend_ast_export() - float number is not     preserved). (Oleg Efimov)
    * Fix handling of references in zval_try_get_long(). (nielsdos)
    * Do not delete main chunk in zend_gc. (danog, Arnaud)
    * Fix compile issues with zend_alloc and some non-default options. (nielsdos)

    **Curl:**

    * Fix memory leak when setting a list via curl_setopt fails. (nielsdos)

    **Date:**

    * Fix leaks with multiple calls to DatePeriod iterator current(). (nielsdos)

    **DOM:**

    * Fixed bug [GH-18744](https://github.com/php/php-src/issues/18744) (classList works not correctly if copy     HTMLElement by clone keyword). (nielsdos)

    **FPM:**

    * Fixed [GH-18662](https://github.com/php/php-src/issues/18662) (fpm_get_status segfault). (txuna)

    **Hash:**

    * Fixed bug [GH-14551](https://github.com/php/php-src/issues/14551) (PGO build fails with xxhash).
    (nielsdos)

    **Intl:**

    * Fix memory leak in intl_datetime_decompose() on failure. (nielsdos)
    * Fix memory leak in locale lookup on failure. (nielsdos)

    **Opcache:**

    * Fixed bug [GH-18743](https://github.com/php/php-src/issues/18743) (Incompatibility in Inline TLS     Assembly on Alpine 3.22). (nielsdos, Arnaud)

    **ODBC:**

    * Fix memory leak on php_odbc_fetch_hash() failure. (nielsdos)

    **OpenSSL:**

    * Fix memory leak of X509_STORE in php_openssl_setup_verify() on failure. (nielsdos)
    * Fixed bug php#74796 (Requests through http proxy set peer name). (Jakub Zelenka)

    **PGSQL:**

    * Fixed [GHSA-hrwm-9436-5mv3](https://github.com/php/php-src/security/advisories/GHSA-hrwm-9436-5mv3)     (pgsql extension does not check for errors during escaping). (**CVE-2025-1735**) (Jakub Zelenka)

    **PDO ODBC:**

    * Fix memory leak if WideCharToMultiByte() fails. (nielsdos)

    **PDO Sqlite:**

    * Fixed memory leak with Pdo_Sqlite::createCollation when the callback has an incorrect return type.
    (David Carlier)

    **Phar:**

    * Add missing filter cleanups on phar failure. (nielsdos)
    * Fixed bug [GH-18642](https://github.com/php/php-src/issues/18642) (Signed integer overflow in ext/phar     fseek). (nielsdos)

    **PHPDBG:**

    * Fix 'phpdbg --help' segfault on shutdown with USE_ZEND_ALLOC=0. (nielsdos)

    **PGSQL:**

    * Fix warning not being emitted when failure to cancel a query with pg_cancel_query(). (Girgias)

    **Random:**

    * Fix reference type confusion and leak in user random engine. (nielsdos, timwolla)

    **Readline:**

    * Fix memory leak when calloc() fails in php_readline_completion_cb(). (nielsdos)

    **SimpleXML:**

    * Fixed bug [GH-18597](https://github.com/php/php-src/issues/18597) (Heap-buffer-overflow in zend_alloc.c     when assigning string with UTF-8 bytes). (nielsdos)

    **SOAP:**

    * Fix memory leaks in php_http.c when call_user_function() fails. (nielsdos)
    * Fixed [GHSA-453j-q27h-5p8x](https://github.com/php/php-src/security/advisories/GHSA-453j-q27h-5p8x)     (NULL Pointer Dereference in PHP SOAP Extension via Large XML Namespace Prefix). (**CVE-2025-6491**)     (Lekssays, nielsdos)

    **Standard:**

    * Fixed [GHSA-3cr5-j632-f35r](https://github.com/php/php-src/security/advisories/GHSA-3cr5-j632-f35r)     (Null byte termination in hostnames). (**CVE-2025-1220**) (Jakub Zelenka)

    **Tidy:**

    * Fix memory leak in tidy output handler on error. (nielsdos)
    * Fix tidyOptIsReadonly deprecation, using tidyOptGetCategory. (David Carlier)


Tenable has extracted the preceding description block directly from the Fedora security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Fedora 41 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2025-da047483d8 advisory.

    **PHP version 8.3.23** (03 Jul 2025)

    **Core:**

    * Fixed [GH-18695](https://github.com/php/php-src/issues/18695) (zend_ast_export() - float number is not     preserved). (Oleg Efimov)
    * Do not delete main chunk in zend_gc. (danog, Arnaud)
    * Fix compile issues with zend_alloc and some non-default options. (nielsdos)

    **Curl:**

    * Fix memory leak when setting a list via curl_setopt fails. (nielsdos)
    * Fix incorrect OpenSSL version detection. (Peter Kokot)

    **Date:**

    * Fix leaks with multiple calls to DatePeriod iterator current(). (nielsdos)

    **FPM:**

    * Fixed [GH-18662](https://github.com/php/php-src/issues/18662) (fpm_get_status segfault). (txuna)

    **Hash:**

    * Fixed bug [GH-14551](https://github.com/php/php-src/issues/14551) (PGO build fails with xxhash).
    (nielsdos)

    **Intl:**

    * Fix memory leak in intl_datetime_decompose() on failure. (nielsdos)
    * Fix memory leak in locale lookup on failure. (nielsdos)

    **ODBC:**

    * Fix memory leak on php_odbc_fetch_hash() failure. (nielsdos)

    **Opcache:**

    * Fixed bug [GH-18743](https://github.com/php/php-src/issues/18743) (Incompatibility in Inline TLS     Assembly on Alpine 3.22). (nielsdos, Arnaud)

    **OpenSSL:**

    * Fix memory leak of X509_STORE in php_openssl_setup_verify() on failure. (nielsdos)
    * Fixed bug php#74796 (Requests through http proxy set peer name). (Jakub Zelenka)

    **PGSQL:**

    * Fixed [GHSA-hrwm-9436-5mv3](https://github.com/php/php-src/security/advisories/GHSA-hrwm-9436-5mv3)     (pgsql extension does not check for errors during escaping). (**CVE-2025-1735**) (Jakub Zelenka)

    **Phar:**

    * Add missing filter cleanups on phar failure. (nielsdos)
    * Fixed bug [GH-18642](https://github.com/php/php-src/issues/18642) (Signed integer overflow in ext/phar     fseek). (nielsdos)

    **PHPDBG:**

    * Fix 'phpdbg --help' segfault on shutdown with USE_ZEND_ALLOC=0. (nielsdos)

    **PDO ODBC:**

    * Fix memory leak if WideCharToMultiByte() fails. (nielsdos)

    **PGSQL:**

    * Fix warning not being emitted when failure to cancel a query with pg_cancel_query(). (Girgias)

    **Random:**

    * Fix reference type confusion and leak in user random engine. (nielsdos, timwolla)

    **Readline:**

    * Fix memory leak when calloc() fails in php_readline_completion_cb(). (nielsdos)

    **SOAP:**

    * Fix memory leaks in php_http.c when call_user_function() fails. (nielsdos)
    * Fixed [GHSA-453j-q27h-5p8x](https://github.com/php/php-src/security/advisories/GHSA-453j-q27h-5p8x)     (NULL Pointer Dereference in PHP SOAP Extension via Large XML Namespace Prefix). (**CVE-2025-6491**)     (Lekssays, nielsdos)

    **Standard:**

    * Fixed [GHSA-3cr5-j632-f35r](https://github.com/php/php-src/security/advisories/GHSA-3cr5-j632-f35r)     (Null byte termination in hostnames). (**CVE-2025-1220**) (Jakub Zelenka)

    **Tidy:**

    * Fix memory leak in tidy output handler on error. (nielsdos)
    * Fix tidyOptIsReadonly deprecation, using tidyOptGetCategory. (David Carlier)


Tenable has extracted the preceding description block directly from the Fedora security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

According to its self-reported version number, the version of PHP installed on the remote host is 8.1.x prior to 8.1.33, 8.2.x prior to 8.2.29, 8.3.x prior to 8.3.23, or 8.4.x prior to 8.4.10. It is, therefore, affected by multiple vulnerabilities:

 - pgsql extension does not check for errors during escaping. (CVE-2025-1735)

 - NULL Pointer Dereference in PHP SOAP Extension via Large XML Namespace Prefix. (CVE-2025-6491)

 - Null byte termination in hostnames. (CVE-2025-1220) Note that the scanner has not tested for these issues but has instead relied only on the application's self-reported version number.

The version of php81 installed on the remote host is prior to 8.1.33 / 8.2.29 / 8.4.10. It is, therefore, affected by multiple vulnerabilities as referenced in the SSA:2025-184-01 advisory.

    New php packages are available for Slackware 15.0 and -current to fix security issues.

Tenable has extracted the preceding description block directly from the php81 security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The version of FreeBSD installed on the remote host is prior to tested version. It is, therefore, affected by multiple vulnerabilities as referenced in the d607b12c-5821-11f0-ab92-f02f7497ecda advisory.

    php.net reports:

Tenable has extracted the preceding description block directly from the FreeBSD security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The version of PHP installed on the remote host is prior to 8.1.33. It is, therefore, affected by multiple vulnerabilities as referenced in the Version 8.1.33 advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The version of PHP installed on the remote host is prior to 8.3.23. It is, therefore, affected by multiple vulnerabilities as referenced in the Version 8.3.23 advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The version of PHP installed on the remote host is prior to 8.4.10. It is, therefore, affected by multiple vulnerabilities as referenced in the Version 8.4.10 advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The version of PHP installed on the remote host is prior to 8.2.29. It is, therefore, affected by multiple vulnerabilities as referenced in the Version 8.2.29 advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

ID	Name	Product	Family	Severity
242042	Fedora 42 : php (2025-2c344545bf)	Nessus	Fedora Local Security Checks	high
242036	Fedora 41 : php (2025-da047483d8)	Nessus	Fedora Local Security Checks	high
114911	PHP 8.1.x < 8.1.33 Multiple Vulnerabilities	Web App Scanning	Component Vulnerability	high
114910	PHP 8.2.x < 8.2.29 Multiple Vulnerabilities	Web App Scanning	Component Vulnerability	high
114909	PHP 8.3.x < 8.3.23 Multiple Vulnerabilities	Web App Scanning	Component Vulnerability	high
114908	PHP 8.4.x < 8.4.10 Multiple Vulnerabilities	Web App Scanning	Component Vulnerability	high
241338	Slackware Linux 15.0 / current php81 Multiple Vulnerabilities (SSA:2025-184-01)	Nessus	Slackware Local Security Checks	high
241330	FreeBSD : php -- Multiple vulnerabilities (d607b12c-5821-11f0-ab92-f02f7497ecda)	Nessus	FreeBSD Local Security Checks	high
241328	PHP 8.1.x < 8.1.33 Multiple Vulnerabilities	Nessus	CGI abuses	high
241326	PHP 8.3.x < 8.3.23 Multiple Vulnerabilities	Nessus	CGI abuses	high
241292	PHP 8.4.x < 8.4.10 Multiple Vulnerabilities	Nessus	CGI abuses	high
241291	PHP 8.2.x < 8.2.29 Multiple Vulnerabilities	Nessus	CGI abuses	high

Detections

Analytics

CVE-2025-1220

low

Tenable Plugins

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