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Debian dla-4732 : libapache2-mod-php8.2 - security update

critical Nessus Plugin ID 334644

Synopsis

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

Description

The remote Debian 12 host has packages installed that are affected by multiple vulnerabilities as referenced in the dla-4732 advisory.

 ------------------------------------------------------------------------- Debian LTS Advisory DLA-4732-1 [email protected] https://www.debian.org/lts/security/ Guilhem Moulin August 11, 2026 https://wiki.debian.org/LTS
 -------------------------------------------------------------------------

 Package : php8.2 Version : 8.2.33-1~deb12u1 CVE ID : CVE-2026-7260 CVE-2026-17543 Debian Bug : 1143153

 Security issues were found in PHP, a widely-used open source general purpose scripting language, which could result in denial of service or SQL injection.

 CVE-2026-7260

 Symbolic links in phar archives are followed without any depth limit or cycle detection. A crafted tar-based phar archive containing circular symbolic links could therefore cause unbounded recursion, exhausting the C stack and crashing the PHP process.

 CVE-2026-17543

 Improper escaping of backslashes in attacker-provided parameters allow for trivial SQL injection via E'' backslash breakout.

 For Debian 12 bookworm, these problems have been fixed in version 8.2.33-1~deb12u1.

 We recommend that you upgrade your php8.2 packages.

 For the detailed security status of php8.2 please refer to its security tracker page at:
 https://security-tracker.debian.org/tracker/php8.2

 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-php8.2 packages.

See Also

https://packages.debian.org/source/bookworm/php8.2

https://security-tracker.debian.org/tracker/CVE-2026-17543

https://security-tracker.debian.org/tracker/CVE-2026-7260

https://security-tracker.debian.org/tracker/source-package/php8.2

Plugin Details

Severity: Critical

ID: 334644

File Name: debian_DLA-4732.nasl

Version: 1.1

Type: Local

Agent: unix

Published: 8/12/2026

Updated: 8/12/2026

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

Risk Information

VPR

Risk Factor: High

Score: 7.6

Percentile: 98.4

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-2026-17543

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: 9.3

Threat Score: 8.9

Threat Vector: CVSS:4.0/E:P

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

Vulnerability Information

CPE: cpe:/o:debian:debian_linux:12.0, p-cpe:/a:debian:debian_linux:libapache2-mod-php8.2, p-cpe:/a:debian:debian_linux:libphp8.2-embed, p-cpe:/a:debian:debian_linux:php8.2-bcmath, p-cpe:/a:debian:debian_linux:php8.2-bz2, p-cpe:/a:debian:debian_linux:php8.2-cgi, p-cpe:/a:debian:debian_linux:php8.2-cli, p-cpe:/a:debian:debian_linux:php8.2-common, p-cpe:/a:debian:debian_linux:php8.2-curl, p-cpe:/a:debian:debian_linux:php8.2-dba, p-cpe:/a:debian:debian_linux:php8.2-dev, p-cpe:/a:debian:debian_linux:php8.2-enchant, p-cpe:/a:debian:debian_linux:php8.2-fpm, p-cpe:/a:debian:debian_linux:php8.2-gd, p-cpe:/a:debian:debian_linux:php8.2-gmp, p-cpe:/a:debian:debian_linux:php8.2-imap, p-cpe:/a:debian:debian_linux:php8.2-interbase, p-cpe:/a:debian:debian_linux:php8.2-intl, p-cpe:/a:debian:debian_linux:php8.2-ldap, p-cpe:/a:debian:debian_linux:php8.2-mbstring, p-cpe:/a:debian:debian_linux:php8.2-mysql, p-cpe:/a:debian:debian_linux:php8.2-odbc, p-cpe:/a:debian:debian_linux:php8.2-opcache, p-cpe:/a:debian:debian_linux:php8.2-pgsql, p-cpe:/a:debian:debian_linux:php8.2-phpdbg, p-cpe:/a:debian:debian_linux:php8.2-pspell, p-cpe:/a:debian:debian_linux:php8.2-readline, p-cpe:/a:debian:debian_linux:php8.2-snmp, p-cpe:/a:debian:debian_linux:php8.2-soap, p-cpe:/a:debian:debian_linux:php8.2-sqlite3, p-cpe:/a:debian:debian_linux:php8.2-sybase, p-cpe:/a:debian:debian_linux:php8.2-tidy, p-cpe:/a:debian:debian_linux:php8.2-xml, p-cpe:/a:debian:debian_linux:php8.2-xsl, p-cpe:/a:debian:debian_linux:php8.2-zip, p-cpe:/a:debian:debian_linux:php8.2

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: 8/11/2026

Vulnerability Publication Date: 7/28/2026

Reference Information

CVE: CVE-2026-17543, CVE-2026-7260