Vulnerability record

CVE-2019-11043

PHP FastCGI Process Manager (FPM) Buffer Overflow Vulnerability

Severity: CriticalExploitation: Exploitation confirmedCISA KEV Used by ransomware
What should I do?

This vulnerability is in the CISA Known Exploited Vulnerabilities catalog: attackers are using it. If you run FastCGI Process Manager (FPM), fix it now.

CISA required action: Apply updates per vendor instructions.

US federal civilian agencies must remediate by Apr 15, 2022.

Patch status

Official fix available since

Apply the vendor's update to every affected system. Check the fixed-in versions below where known.

Basis: NVD patch reference

Description

In PHP versions 7.1.x below 7.1.33, 7.2.x below 7.2.24 and 7.3.x below 7.3.11 in certain configurations of FPM setup it is possible to cause FPM module to write past allocated buffers into the space reserved for FCGI protocol data, thus opening the possibility of remote code execution.

Source: NIST National Vulnerability Database. Official vulnerability data, reproduced as published.

Affected products

Products affected by this vulnerability, with versions and the source of each entry
ProductVendorAffected versionsFixed inSource
FastCGI Process Manager (FPM)PHP——KEV
PHPPHP>= 7.1.0, < 7.1.33; >= 7.2.0, < 7.2.24; >= 7.3.0, < 7.3.117.1.33; 7.2.24; 7.3.11NVD

Sources: KEV = CISA Known Exploited Vulnerabilities catalog; NVD = NIST National Vulnerability Database.

Intelligence timeline

Developments from the last 30 days, newest first.

  1. CVSS scoredUpdateKEV

    CVE-2019-11043 scored CVSS 9.8: PHP FastCGI Process Manager (FPM), PHP FastCGI Process Manager (FPM) Buffer Overflow Vulnerability

    CISA lists this as exploited in the wild and known to be used in ransomware campaigns. Unpatched FastCGI Process Manager (FPM) systems are exposed to active attacks now.

    Basis: NIST National Vulnerability Database

  2. Patch releasedUpdateKEV

    Patch released for CVE-2019-11043: PHP FastCGI Process Manager (FPM), PHP FastCGI Process Manager (FPM) Buffer Overflow Vulnerability

    An official fix is now available for PHP FastCGI Process Manager (FPM). This vulnerability is being exploited, so apply it promptly.

    Basis: NVD patch reference

1 earlier event is available with a subscription. See plans.

Coverage

We have not published a story about this vulnerability yet.

References