Detections
Analytics
Amazon Linux 2023 : php8.4, php8.4-bcmath, php8.4-cli (ALAS2023-2026-3303)
critical Nessus Plugin ID 370301
Language:
Synopsis
The remote Amazon Linux 2023 host is missing a security update.Description
It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2026-3303 advisory.PHP uses longjmp() for out-of-memory (OOM) errors to exit the current context and abort handling of the request. Some contexts may not properly account for this scenario and leave request memory in an uninitialized state before performing an allocation. The subsequent request cleanup procedure may read or branch on this memory. Multiple OOM strategies can consistently trigger this condition and lead to remote code execution (RCE). (CVE-2026-109618)
PHP has various global state that temporarily points into request memory. In some scenarios, global state may not be correctly reset, or may be repopulated after being reset. The global state may then refer to request memory even after it has been freed. Subsequent requests may read or branch on this stale state before it is fully initialized. Multiple strategies can trigger this condition and produce remote code execution (RCE). (CVE-2026-109619)
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 php8.4 --releasever 2023.12.20261021' or or 'dnf update --advisory ALAS2023-2026-3303 --releasever 2023.12.20261021' to update your system.See Also
https://alas.aws.amazon.com//AL2023/ALAS2023-2026-3303.html
https://alas.aws.amazon.com/faqs.html
Plugin Details
Severity: Critical
ID: 370301
File Name: al2023_ALAS2023-2026-3303.nasl
Version: 1.4
Type: Local
Agent: unix
Published: 10/22/2026
Updated: 10/23/2026
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: Critical
Score: 9.4
Percentile: 99.83
CVSS v2
Risk Factor: Critical
Base Score: 10
Temporal Score: 8.7
Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C
CVSS Score Source: CVE-2026-109618
CVSS v3
Risk Factor: Critical
Base Score: 9.8
Temporal Score: 9.4
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:H/RL:O/RC:C
CVSS v4
Risk Factor: Critical
Base Score: 9.2
Threat Score: 9.2
Threat Vector: CVSS:4.0/E:A
Vector: CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
CVSS Score Source: CVE-2026-109619
Vulnerability Information
CPE: cpe:/o:amazon:linux:2023, p-cpe:/a:amazon:linux:php8.4-bcmath-debuginfo, p-cpe:/a:amazon:linux:php8.4-bcmath, p-cpe:/a:amazon:linux:php8.4-cli-debuginfo, p-cpe:/a:amazon:linux:php8.4-cli, p-cpe:/a:amazon:linux:php8.4-common-debuginfo, p-cpe:/a:amazon:linux:php8.4-common, p-cpe:/a:amazon:linux:php8.4-dba-debuginfo, p-cpe:/a:amazon:linux:php8.4-dba, p-cpe:/a:amazon:linux:php8.4-dbg-debuginfo, p-cpe:/a:amazon:linux:php8.4-dbg, p-cpe:/a:amazon:linux:php8.4-debuginfo, p-cpe:/a:amazon:linux:php8.4-debugsource, p-cpe:/a:amazon:linux:php8.4-devel, p-cpe:/a:amazon:linux:php8.4-embedded-debuginfo, p-cpe:/a:amazon:linux:php8.4-embedded, p-cpe:/a:amazon:linux:php8.4-enchant-debuginfo, p-cpe:/a:amazon:linux:php8.4-enchant, p-cpe:/a:amazon:linux:php8.4-ffi-debuginfo, p-cpe:/a:amazon:linux:php8.4-ffi, p-cpe:/a:amazon:linux:php8.4-fpm-debuginfo, p-cpe:/a:amazon:linux:php8.4-fpm, p-cpe:/a:amazon:linux:php8.4-gd-debuginfo, p-cpe:/a:amazon:linux:php8.4-gd, p-cpe:/a:amazon:linux:php8.4-gmp-debuginfo, p-cpe:/a:amazon:linux:php8.4-gmp, p-cpe:/a:amazon:linux:php8.4-intl-debuginfo, p-cpe:/a:amazon:linux:php8.4-intl, p-cpe:/a:amazon:linux:php8.4-ldap-debuginfo, p-cpe:/a:amazon:linux:php8.4-ldap, p-cpe:/a:amazon:linux:php8.4-mbstring-debuginfo, p-cpe:/a:amazon:linux:php8.4-mbstring, p-cpe:/a:amazon:linux:php8.4-modphp-debuginfo, p-cpe:/a:amazon:linux:php8.4-modphp, p-cpe:/a:amazon:linux:php8.4-mysqlnd-debuginfo, p-cpe:/a:amazon:linux:php8.4-mysqlnd, p-cpe:/a:amazon:linux:php8.4-odbc-debuginfo, p-cpe:/a:amazon:linux:php8.4-odbc, p-cpe:/a:amazon:linux:php8.4-opcache-debuginfo, p-cpe:/a:amazon:linux:php8.4-opcache, p-cpe:/a:amazon:linux:php8.4-pdo-debuginfo, p-cpe:/a:amazon:linux:php8.4-pdo, p-cpe:/a:amazon:linux:php8.4-pgsql-debuginfo, p-cpe:/a:amazon:linux:php8.4-pgsql, p-cpe:/a:amazon:linux:php8.4-process-debuginfo, p-cpe:/a:amazon:linux:php8.4-process, p-cpe:/a:amazon:linux:php8.4-snmp-debuginfo, p-cpe:/a:amazon:linux:php8.4-snmp, p-cpe:/a:amazon:linux:php8.4-soap-debuginfo, p-cpe:/a:amazon:linux:php8.4-soap, p-cpe:/a:amazon:linux:php8.4-sodium-debuginfo, p-cpe:/a:amazon:linux:php8.4-sodium, p-cpe:/a:amazon:linux:php8.4-tidy-debuginfo, p-cpe:/a:amazon:linux:php8.4-tidy, p-cpe:/a:amazon:linux:php8.4-xml-debuginfo, p-cpe:/a:amazon:linux:php8.4-xml, p-cpe:/a:amazon:linux:php8.4-zip-debuginfo, p-cpe:/a:amazon:linux:php8.4-zip, p-cpe:/a:amazon:linux:php8.4
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: 10/21/2026
Vulnerability Publication Date: 10/21/2026
Reference Information
CVE: CVE-2026-109618, CVE-2026-109619
IAVA: 2026-A-1141