Detections
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Amazon Linux 2023 : php8.5, php8.5-bcmath, php8.5-cli (ALAS2023-2026-2041)

critical Nessus Plugin ID 332004

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Synopsis

The remote Amazon Linux 2023 host is missing a security update.

Description

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2026-2041 advisory.

 Improper escaping of backslashes in attacker-provided parameters would allow for trivial SQL injection in PHP versions from 8.2.* before 8.2.33, from 8.3.* before 8.3.33, from 8.4.* before 8.4.24, and from 8.5.* before 8.5.9. (CVE-2026-17543)

 Attacker-provided inputs to bccomp() could lead to an out-of-bounds write with stack and heap corruption in PHP versions from 8.4.* before 8.4.24 and from 8.5.* before 8.5.9. (CVE-2026-17544)

 Circular symbolic links in phar archives could lead to unbounded recursion, exhausting the C stack and crashing the PHP process, in PHP versions from 8.2.* before 8.2.33, from 8.3.* before 8.3.33, from 8.4.* before 8.4.24, and from 8.5.* before 8.5.9. (CVE-2026-7260)

Tenable has extracted the preceding description block directly from the tested product 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

Run 'dnf update php8.5 --releasever 2023.12.20260803' or or 'dnf update --advisory ALAS2023-2026-2041 --releasever 2023.12.20260803' to update your system.

See Also

https://alas.aws.amazon.com//AL2023/ALAS2023-2026-2041.html

https://alas.aws.amazon.com/faqs.html

https://explore.alas.aws.amazon.com/CVE-2026-17543.html

https://explore.alas.aws.amazon.com/CVE-2026-17544.html

https://explore.alas.aws.amazon.com/CVE-2026-7260.html

Plugin Details

Severity: Critical

ID: 332004

File Name: al2023_ALAS2023-2026-2041.nasl

Version: 1.5

Type: Local

Agent: unix

Published: 8/4/2026

Updated: 8/12/2026

Supported Sensors: Frictionless Assessment AWS, 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: 98.37

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-2026-17544

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:amazon:linux:2023, p-cpe:/a:amazon:linux:php8.5-bcmath-debuginfo, p-cpe:/a:amazon:linux:php8.5-bcmath, p-cpe:/a:amazon:linux:php8.5-cli-debuginfo, p-cpe:/a:amazon:linux:php8.5-cli, p-cpe:/a:amazon:linux:php8.5-common-debuginfo, p-cpe:/a:amazon:linux:php8.5-common, p-cpe:/a:amazon:linux:php8.5-dba-debuginfo, p-cpe:/a:amazon:linux:php8.5-dba, p-cpe:/a:amazon:linux:php8.5-dbg-debuginfo, p-cpe:/a:amazon:linux:php8.5-dbg, p-cpe:/a:amazon:linux:php8.5-debuginfo, p-cpe:/a:amazon:linux:php8.5-debugsource, p-cpe:/a:amazon:linux:php8.5-devel, p-cpe:/a:amazon:linux:php8.5-embedded-debuginfo, p-cpe:/a:amazon:linux:php8.5-embedded, p-cpe:/a:amazon:linux:php8.5-enchant-debuginfo, p-cpe:/a:amazon:linux:php8.5-enchant, p-cpe:/a:amazon:linux:php8.5-ffi-debuginfo, p-cpe:/a:amazon:linux:php8.5-ffi, p-cpe:/a:amazon:linux:php8.5-fpm-debuginfo, p-cpe:/a:amazon:linux:php8.5-fpm, p-cpe:/a:amazon:linux:php8.5-gd-debuginfo, p-cpe:/a:amazon:linux:php8.5-gd, p-cpe:/a:amazon:linux:php8.5-gmp-debuginfo, p-cpe:/a:amazon:linux:php8.5-gmp, p-cpe:/a:amazon:linux:php8.5-intl-debuginfo, p-cpe:/a:amazon:linux:php8.5-intl, p-cpe:/a:amazon:linux:php8.5-ldap-debuginfo, p-cpe:/a:amazon:linux:php8.5-ldap, p-cpe:/a:amazon:linux:php8.5-mbstring-debuginfo, p-cpe:/a:amazon:linux:php8.5-mbstring, p-cpe:/a:amazon:linux:php8.5-modphp-debuginfo, p-cpe:/a:amazon:linux:php8.5-modphp, p-cpe:/a:amazon:linux:php8.5-mysqlnd-debuginfo, p-cpe:/a:amazon:linux:php8.5-mysqlnd, p-cpe:/a:amazon:linux:php8.5-odbc-debuginfo, p-cpe:/a:amazon:linux:php8.5-odbc, p-cpe:/a:amazon:linux:php8.5-pdo-debuginfo, p-cpe:/a:amazon:linux:php8.5-pdo, p-cpe:/a:amazon:linux:php8.5-pgsql-debuginfo, p-cpe:/a:amazon:linux:php8.5-pgsql, p-cpe:/a:amazon:linux:php8.5-process-debuginfo, p-cpe:/a:amazon:linux:php8.5-process, p-cpe:/a:amazon:linux:php8.5-snmp-debuginfo, p-cpe:/a:amazon:linux:php8.5-snmp, p-cpe:/a:amazon:linux:php8.5-soap-debuginfo, p-cpe:/a:amazon:linux:php8.5-soap, p-cpe:/a:amazon:linux:php8.5-sodium-debuginfo, p-cpe:/a:amazon:linux:php8.5-sodium, p-cpe:/a:amazon:linux:php8.5-tidy-debuginfo, p-cpe:/a:amazon:linux:php8.5-tidy, p-cpe:/a:amazon:linux:php8.5-xml-debuginfo, p-cpe:/a:amazon:linux:php8.5-xml, p-cpe:/a:amazon:linux:php8.5-zip-debuginfo, p-cpe:/a:amazon:linux:php8.5-zip, p-cpe:/a:amazon:linux:php8.5

Required KB Items: Host/local_checks_enabled, Host/AmazonLinux/release, Host/AmazonLinux/rpm-list

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 8/4/2026

Vulnerability Publication Date: 7/28/2026

Reference Information

CVE: CVE-2026-17543, CVE-2026-17544, CVE-2026-7260

IAVA: 2026-A-0814