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Debian dla-4586 : libapache2-mod-php7.4 - security update

critical Nessus Plugin ID 314994

Synopsis

The remote Debian host is missing one or more security-related updates.

Description

The remote Debian 11 host has packages installed that are affected by multiple vulnerabilities as referenced in the dla-4586 advisory.

 ------------------------------------------------------------------------- Debian LTS Advisory DLA-4586-1 [email protected] https://www.debian.org/lts/security/ Guilhem Moulin May 16, 2026 https://wiki.debian.org/LTS
 -------------------------------------------------------------------------

 Package : php7.4 Version : 7.4.33-1+deb11u11 CVE ID : CVE-2026-6722 CVE-2026-6735 CVE-2026-7258 CVE-2026-7261 CVE-2026-7262 CVE-2026-7568 Debian Bug : 1136054

 Multiple security issues were found in PHP, a widely-used open source general purpose scripting language, which could result in remote code execution, information disclosure, denial of service.

 CVE-2026-6722

 A use-after-free issue was discovered in the SOAP extension which may lead to remote code execution when an apache:Map node contains duplicate key.

 CVE-2026-6735

 Conrad Draper discovered that the request URI within the PHP-FPM status page was improperly sanitized, thereby allowing cross-site scripting (XSS).

 CVE-2026-7258

 An out-of-bounds read issue was discovered in `urldecode()`, which may lead to denial of service on some platforms.

 CVE-2026-7261

 Ilia Alshanetsky discovered a use-after-free issue after header parsing failure when SoapServer is configured with SOAP_PERSISTENCE_SESSION, which may lead to denial of service.

 CVE-2026-7262

 Ilia Alshanetsky discovered a NULL pointer deference issue in SOAP apache:Map decoder with missing `<value>` element, thereby leading to denial of service.

 CVE-2026-7568

 Aleksey Solovev discovered a signed integer overflow in the `metaphone()` function from the PHP standard library.

 For Debian 11 bullseye, these problems have been fixed in version 7.4.33-1+deb11u11.

 We recommend that you upgrade your php7.4 packages.

 For the detailed security status of php7.4 please refer to its security tracker page at:
 https://security-tracker.debian.org/tracker/php7.4

 Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: https://wiki.debian.org/LTS Attachment:
 signature.asc Description: PGP signature

Tenable has extracted the preceding description block directly from the Debian 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

Upgrade the libapache2-mod-php7.4 packages.

See Also

https://security-tracker.debian.org/tracker/source-package/php7.4

https://packages.debian.org/source/bullseye/php7.4

https://security-tracker.debian.org/tracker/CVE-2026-6722

https://security-tracker.debian.org/tracker/CVE-2026-6735

https://security-tracker.debian.org/tracker/CVE-2026-7258

https://security-tracker.debian.org/tracker/CVE-2026-7261

https://security-tracker.debian.org/tracker/CVE-2026-7262

https://security-tracker.debian.org/tracker/CVE-2026-7568

Plugin Details

Severity: Critical

ID: 314994

File Name: debian_DLA-4586.nasl

Version: 1.1

Type: Local

Agent: unix

Published: 5/15/2026

Updated: 5/15/2026

Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: High

Score: 7.4

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 7.8

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: 8.8

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:P/RL:O/RC:C

CVSS v4

Risk Factor: Critical

Base Score: 9.5

Threat Score: 9

Threat Vector: CVSS:4.0/E:P

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: cpe:/o:debian:debian_linux:11.0, p-cpe:/a:debian:debian_linux:php7.4-phpdbg, p-cpe:/a:debian:debian_linux:php7.4-dba, p-cpe:/a:debian:debian_linux:php7.4-xml, p-cpe:/a:debian:debian_linux:php7.4-snmp, p-cpe:/a:debian:debian_linux:php7.4-gd, p-cpe:/a:debian:debian_linux:php7.4-common, p-cpe:/a:debian:debian_linux:php7.4-imap, p-cpe:/a:debian:debian_linux:php7.4-json, p-cpe:/a:debian:debian_linux:php7.4-curl, p-cpe:/a:debian:debian_linux:php7.4-zip, p-cpe:/a:debian:debian_linux:php7.4-sybase, p-cpe:/a:debian:debian_linux:php7.4-tidy, p-cpe:/a:debian:debian_linux:php7.4-soap, p-cpe:/a:debian:debian_linux:php7.4-xmlrpc, p-cpe:/a:debian:debian_linux:php7.4-bcmath, p-cpe:/a:debian:debian_linux:php7.4-xsl, p-cpe:/a:debian:debian_linux:php7.4-intl, p-cpe:/a:debian:debian_linux:php7.4, p-cpe:/a:debian:debian_linux:php7.4-sqlite3, p-cpe:/a:debian:debian_linux:php7.4-gmp, p-cpe:/a:debian:debian_linux:php7.4-pgsql, p-cpe:/a:debian:debian_linux:php7.4-interbase, p-cpe:/a:debian:debian_linux:php7.4-odbc, p-cpe:/a:debian:debian_linux:php7.4-mbstring, p-cpe:/a:debian:debian_linux:libphp7.4-embed, p-cpe:/a:debian:debian_linux:php7.4-enchant, p-cpe:/a:debian:debian_linux:php7.4-ldap, p-cpe:/a:debian:debian_linux:php7.4-fpm, p-cpe:/a:debian:debian_linux:php7.4-readline, p-cpe:/a:debian:debian_linux:php7.4-opcache, p-cpe:/a:debian:debian_linux:php7.4-dev, p-cpe:/a:debian:debian_linux:php7.4-bz2, p-cpe:/a:debian:debian_linux:php7.4-cli, p-cpe:/a:debian:debian_linux:php7.4-cgi, p-cpe:/a:debian:debian_linux:php7.4-pspell, p-cpe:/a:debian:debian_linux:libapache2-mod-php7.4, p-cpe:/a:debian:debian_linux:php7.4-mysql

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 5/16/2026

Vulnerability Publication Date: 5/6/2026

Reference Information

CVE: CVE-2026-6722, CVE-2026-6735, CVE-2026-7258, CVE-2026-7261, CVE-2026-7262, CVE-2026-7568