CVE-2019-11043
PHP FastCGI Process Manager (FPM) Buffer Overflow Vulnerability
Does this matter?
Known to be exploited in the wild (CISA KEV, CISA remediation deadline 15 April 2022). Treat as an emergency change: patch or isolate now, then hunt for prior compromise.
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.
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 99.75% probability · 100th percentile
- Public exploits
- 2 in Exploit-DB · verified · first 28 October 2019
- CISA KEV
- Listed 25 March 2022 · due 15 April 2022 · used in ransomware campaigns
- Weakness
- CWE-120, CWE-787
- Affected
- php/php · canonical/ubuntu linux · debian/debian linux · fedoraproject/fedora · tenable/tenable.sc · redhat/software collections · redhat/enterprise linux · redhat/enterprise linux desktop · redhat/enterprise linux eus · redhat/enterprise linux eus compute node · redhat/enterprise linux for arm 64 · redhat/enterprise linux for arm 64 eus · redhat/enterprise linux for ibm z systems · redhat/enterprise linux for ibm z systems eus · redhat/enterprise linux for power big endian · redhat/enterprise linux for power big endian eus · redhat/enterprise linux for power little endian · redhat/enterprise linux for power little endian eus · redhat/enterprise linux for scientific computing · redhat/enterprise linux server · +3 more
- Source
- security@php.net
EPSS 99.7% since 27 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
CISA notes
Apply updates per vendor instructions. https://nvd.nist.gov/vuln/detail/CVE-2019-11043
Public exploits (2)
Entries in Exploit-DB that cite this CVE. Links go to the Exploit-DB page and to the file in the public repository; nothing is hosted here. A verified tick means the Exploit-DB team confirmed the exploit works against the stated version.
References
- http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00011.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00014.htmlMailing List, Third Party Advisory
- http://packetstormsecurity.com/files/156642/PHP-FPM-7.x-Remote-Code-Execution.htmlExploit, Third Party Advisory, VDB Entry
- http://seclists.org/fulldisclosure/2020/Jan/40Mailing List, Third Party Advisory
- https://access.redhat.com/errata/RHSA-2019:3286Third Party Advisory
- https://access.redhat.com/errata/RHSA-2019:3287Third Party Advisory
- https://access.redhat.com/errata/RHSA-2019:3299Third Party Advisory
- https://access.redhat.com/errata/RHSA-2019:3300Third Party Advisory
- https://access.redhat.com/errata/RHSA-2019:3724Third Party Advisory
- https://access.redhat.com/errata/RHSA-2019:3735Third Party Advisory
- https://access.redhat.com/errata/RHSA-2019:3736Third Party Advisory
- https://access.redhat.com/errata/RHSA-2020:0322Third Party Advisory
- https://bugs.php.net/bug.php?id=78599Exploit, Issue Tracking, Patch, Vendor Advisory
- https://github.com/neex/phuip-fpizdamExploit, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3W23TP6X4H7LB645FYZLUPNIRD5W3EPU/Mailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FSNBUSPKMLUHHOADROKNG5GDWDCRHT5M/Mailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/T62LF4ZWVV7OMMIZFO6IFO5QLZKK7YRD/Mailing List, Third Party Advisory
- https://seclists.org/bugtraq/2020/Jan/44Mailing List, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20191031-0003/Third Party Advisory
- https://support.apple.com/kb/HT210919Third Party Advisory
- https://support.f5.com/csp/article/K75408500?utm_source=f5support&%3Butm_medium=RSSThird Party Advisory
- https://usn.ubuntu.com/4166-1/Third Party Advisory
- https://usn.ubuntu.com/4166-2/Third Party Advisory
- https://www.debian.org/security/2019/dsa-4552Mailing List, Third Party Advisory
- https://www.debian.org/security/2019/dsa-4553Mailing List, Third Party Advisory
- https://www.synology.com/security/advisory/Synology_SA_19_36Third Party Advisory
- https://www.tenable.com/security/tns-2021-14Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00011.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00014.htmlMailing List, Third Party Advisory
- http://packetstormsecurity.com/files/156642/PHP-FPM-7.x-Remote-Code-Execution.htmlExploit, Third Party Advisory, VDB Entry
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.