Important Security Update on PHP Denial of Service for Ubuntu 16.04 LTS

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PHP could be made to crash or expose sensitive information if it received specially crafted input. Software Description: - php7.0: HTML-embedded scripting language interpreter Details: It was discovered that PHP incorrectly handled Apache map decoding in SOAP servers with a typemap configured. A remote attacker could use this issue to cause a NULL pointer dereference, resulting in a denial of service. (CVE-2026-7262) It was discovered that PHP incorrectly handled signed integer overflow in the metaphone() function. An attacker could use this issue to cause an out-of-bounds read, resulting in a denial of service. (CVE-2026-7568) It was discovered that PHP incorrectly handled circular symbolic links in phar archives. An attacker could use this issue to cause unbounded recursion, resulting in a denial of service. (CVE-2026-7260) It was discovered that PHP incorrectly escaped backslashes in the pgsql extension when standard_conforming_strings is enabled. An attacker could use thi... Read the Full Advisory

PHP could be made to crash or expose sensitive information if it received

specially crafted input.

Software Description:

- php7.0: HTML-embedded scripting language interpreter

It was discovered that PHP incorrectly handled Apache map decoding in SOAP

servers with a typemap configured. A remote attacker could use this issue

to cause a NULL pointer dereference, resulting in a denial of service.

It was discovered that PHP incorrectly handled signed integer overflow in

the metaphone() function. An attacker could use this issue to cause an

out-of-bounds read, resulting in a denial of service. (CVE-2026-7568)

It was discovered that PHP incorrectly handled circular symbolic links in

phar archives. An attacker could use this issue to cause unbounded

recursion, resulting in a denial of service. (CVE-2026-7260)

It was discovered that PHP incorrectly escaped backslashes in the pgsql

extension when standard_conforming_strings is enabled. An attacker could

The problem can be corrected by updating your system to the following package versions: Ubuntu 16.04 LTS libapache2-mod-php7.0 7.0.33-0ubuntu0.16.04.16+esm20 Available with Ubuntu Pro libphp7.0-embed 7.0.33-0ubuntu0.16.04.16+esm20 Available with Ubuntu Pro php7.0-cgi 7.0.33-0ubuntu0.16.04.16+esm20 Available with Ubuntu Pro php7.0-cli 7.0.33-0ubuntu0.16.04.16+esm20 Available with Ubuntu Pro php7.0-common 7.0.33-0ubuntu0.16.04.16+esm20 Available with Ubuntu Pro php7.0-fpm 7.0.33-0ubuntu0.16.04.16+esm20 Available with Ubuntu Pro php7.0-pgsql 7.0.33-0ubuntu0.16.04.16+esm20 Available with Ubuntu Pro php7.0-phpdbg 7.0.33-0ubuntu0.16.04.16+esm20 Available with Ubuntu Pro php7.0-soap 7.0.33-0ubuntu0.16.04.16+esm20 Available with Ubuntu Pro In general, a standard system update will make all the necessary changes.

CVE-2026-17543, CVE-2026-7260, CVE-2026-7262, CVE-2026-7568

Ubuntu Security Notice USN-8734-1

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