Detections
Analytics

Ubuntu 16.04 LTS : PHP vulnerabilities (USN-8513-1)

critical Nessus Plugin ID 325420

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Synopsis

The remote Ubuntu host is missing one or more security updates.

Description

The remote Ubuntu 16.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-8513-1 advisory.

 It was discovered that PHP incorrectly handled SOAP object deduplication when processing apache:Map nodes with duplicate keys. An attacker could possibly use this to cause a use-after-free, resulting in remote code execution. (CVE-2026-6722)

 It was discovered that PHP incorrectly handled SOAP request persistence when configured with SOAP_PERSISTENCE_SESSION. An attacker could possibly use this to cause a use-after-free, resulting in memory corruption, information disclosure, or a denial of service. (CVE-2026-7261)

 It was discovered that the PDO Firebird driver in PHP improperly handled NUL bytes when quoting SQL query strings. An attacker could possibly use this to perform SQL injection when attacker-controlled values are embedded in SQL statements. (CVE-2025-14179)

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

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

Solution

Update the affected packages.

See Also

https://ubuntu.com/security/notices/USN-8513-1

Plugin Details

Severity: Critical

ID: 325420

File Name: ubuntu_USN-8513-1.nasl

Version: 1.1

Type: Local

Agent: unix

Published: 7/7/2026

Updated: 7/7/2026

Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Continuous Assessment, Tenable Cloud Security, Tenable Self-Hosted Container Security, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.9

Percentile: 96.92

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 7.4

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

CVSS Score Source: CVE-2026-7261

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

CVSS v4

Risk Factor: Critical

Base Score: 9.5

Threat Score: 8.4

Threat Vector: CVSS:4.0/E:U

Vector: CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H

CVSS Score Source: CVE-2026-6722

Vulnerability Information

CPE: p-cpe:/a:canonical:ubuntu_linux:php7.0-interbase, p-cpe:/a:canonical:ubuntu_linux:php7.0-json, p-cpe:/a:canonical:ubuntu_linux:php7.0-sybase, p-cpe:/a:canonical:ubuntu_linux:php7.0-snmp, p-cpe:/a:canonical:ubuntu_linux:php7.0-sqlite3, p-cpe:/a:canonical:ubuntu_linux:php7.0-dba, p-cpe:/a:canonical:ubuntu_linux:php7.0-tidy, cpe:/o:canonical:ubuntu_linux:16.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:php7.0-gd, p-cpe:/a:canonical:ubuntu_linux:php7.0-opcache, p-cpe:/a:canonical:ubuntu_linux:php7.0-xmlrpc, p-cpe:/a:canonical:ubuntu_linux:php7.0-recode, p-cpe:/a:canonical:ubuntu_linux:php7.0-dev, p-cpe:/a:canonical:ubuntu_linux:php7.0-ldap, p-cpe:/a:canonical:ubuntu_linux:php7.0-imap, p-cpe:/a:canonical:ubuntu_linux:php7.0-cgi, p-cpe:/a:canonical:ubuntu_linux:php7.0-bz2, p-cpe:/a:canonical:ubuntu_linux:php7.0-xml, p-cpe:/a:canonical:ubuntu_linux:libapache2-mod-php7.0, p-cpe:/a:canonical:ubuntu_linux:php7.0-fpm, p-cpe:/a:canonical:ubuntu_linux:libphp7.0-embed, p-cpe:/a:canonical:ubuntu_linux:php7.0-enchant, p-cpe:/a:canonical:ubuntu_linux:php7.0-common, p-cpe:/a:canonical:ubuntu_linux:php7.0-phpdbg, p-cpe:/a:canonical:ubuntu_linux:php7.0, p-cpe:/a:canonical:ubuntu_linux:php7.0-bcmath, p-cpe:/a:canonical:ubuntu_linux:php7.0-cli, p-cpe:/a:canonical:ubuntu_linux:php7.0-mbstring, p-cpe:/a:canonical:ubuntu_linux:php7.0-curl, p-cpe:/a:canonical:ubuntu_linux:php7.0-xsl, p-cpe:/a:canonical:ubuntu_linux:php7.0-odbc, p-cpe:/a:canonical:ubuntu_linux:php7.0-mysql, p-cpe:/a:canonical:ubuntu_linux:php7.0-pgsql, p-cpe:/a:canonical:ubuntu_linux:php7.0-readline, p-cpe:/a:canonical:ubuntu_linux:php7.0-mcrypt, p-cpe:/a:canonical:ubuntu_linux:php7.0-soap, p-cpe:/a:canonical:ubuntu_linux:php7.0-zip, p-cpe:/a:canonical:ubuntu_linux:php7.0-gmp, p-cpe:/a:canonical:ubuntu_linux:php7.0-pspell, p-cpe:/a:canonical:ubuntu_linux:php7.0-intl

Required KB Items: Host/cpu, Host/Debian/dpkg-l, Host/Ubuntu, Host/Ubuntu/release

Exploit Ease: No known exploits are available

Patch Publication Date: 7/6/2026

Vulnerability Publication Date: 5/6/2026

Reference Information

CVE: CVE-2025-14179, CVE-2026-6722, CVE-2026-7261

USN: 8513-1