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Fencer Intel
high 8.7

CVE-2019-11043 kev+ ransomware in the critical feed json

Underflow in PHP-FPM can lead to RCE

published 7y ago modified 4mo ago also EUVD-2019-2751

cvss
8.7
version 3.1, CNA
cisa kev
Exploited
added 2022-03-25, used in ransomware
epss
99.8%
EPSS 99.8% chance of exploitation in 30 days, percentile 99.9%
public exploits
3
Metasploit and Exploit-DB, plus a Nuclei check

Summary

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.

Patch / fix

cisa required action Apply updates per vendor instructions.

  • PHP PHP 7.1.33, 7.2.24, 7.3.11
  • php7.0 Ubuntu 16.04 LTS 7.0.33-0ubuntu0.16.04.7
  • php7.2 Ubuntu 18.04 LTS 7.2.24-0ubuntu0.18.04.1
  • php5 Ubuntu Pro 14.04 LTS 5.5.9+dfsg-1ubuntu4.29+esm6

ubuntu advisories UBUNTU-CVE-2019-11043

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • rh-php72-php RHEL 3 SOFTWARE_COLLECTIONS 7.2.24-1.el7
  • rh-php72-php-gd RHEL 3 SOFTWARE_COLLECTIONS 7.2.24-1.el7
  • rh-php72-php-cli RHEL 3 SOFTWARE_COLLECTIONS 7.2.24-1.el7
  • rh-php72-php-dba RHEL 3 SOFTWARE_COLLECTIONS 7.2.24-1.el7
  • rh-php72-php-dbg RHEL 3 SOFTWARE_COLLECTIONS 7.2.24-1.el7
  • rh-php72-php-fpm RHEL 3 SOFTWARE_COLLECTIONS 7.2.24-1.el7
  • rh-php72-php-gmp RHEL 3 SOFTWARE_COLLECTIONS 7.2.24-1.el7
  • rh-php72-php-pdo RHEL 3 SOFTWARE_COLLECTIONS 7.2.24-1.el7

red hat advisories RHSA-2019:3299RHSA-2020:2835RHSA-2020:0322RHSA-2019:3735RHSA-2019:3724RHSA-2019:3286

  • php7 SLES for SAP 15 SP1, SLES for SAP 15, SLES 15-LTSS +8 more 7.2.34-150000.4.103.1
  • php5 SLE Software Development Kit 12 SP4, SLE Module for Web and Scripting 12 5.5.14-109.68.1
  • php72 SLE Software Development Kit 12 SP5, SLE Software Development Kit 12 SP4, SLE Module for Web and Scripting 12 7.2.5-1.29.1
  • php7 SLE Module for Web and Scripting 15 SP1, SLE Module for Web and Scripting 15, SLE Module for Package Hub 15 7.2.5-4.46.1
  • php7 SLE Software Development Kit 12 SP5, SLE Software Development Kit 12 SP4, SLE Module for Web and Scripting 12 7.0.7-50.88.1

suse advisories SUSE-SU-2022:4067-1SUSE-SU-2020:0522-1SUSE-SU-2019:2909-1SUSE-SU-2019:2819-1SUSE-SU-2019:2809-1

  • php7 openSUSE Tumbleweed 7.4.24-1.1
  • php8 openSUSE Tumbleweed 8.0.11-1.1
  • php7 openSUSE Leap 15.0 7.2.5-lp150.2.29.2
  • php7-test openSUSE Leap 15.0 7.2.5-lp150.2.29.2
  • php7 openSUSE Leap 15.1 7.2.5-lp151.6.13.1
  • php7-test openSUSE Leap 15.1 7.2.5-lp151.6.13.1

opensuse advisories openSUSE-SU-2024:11167-1openSUSE-SU-2024:11169-1openSUSE-SU-2019:2457-1openSUSE-SU-2019:2441-1

  • libzip AlmaLinux 8 1.5.2-1.module_el8.5.0+152+112d3b8c
  • libzip AlmaLinux 8 1.5.2-1.module_el8.3.0+2009+b272fdef
  • libzip AlmaLinux 8 1.5.2-1.module_el8.4.0+2229+b272fdef
  • php-pear AlmaLinux 8 1:1.10.9-1.module_el8.3.0+2009+b272fdef
  • apcu-panel AlmaLinux 8 5.1.17-1.module_el8.3.0+2009+b272fdef
  • libzip-tools AlmaLinux 8 1.5.2-1.module_el8.5.0+152+112d3b8c
  • libzip-tools AlmaLinux 8 1.5.2-1.module_el8.4.0+2229+b272fdef
  • libzip-tools AlmaLinux 8 1.5.2-1.module_el8.3.0+2009+b272fdef

almalinux advisories ALSA-2019:3736ALSA-2019:3735

  • libzip Rocky Linux 8 1.5.2-1.module+el8.4.0+414+2e7afcdd
  • php-pear Rocky Linux 8 1:1.10.9-1.module+el8.4.0+414+2e7afcdd
  • php-pecl-zip Rocky Linux 8 1.15.4-1.module+el8.4.0+414+2e7afcdd
  • php-pecl-apcu Rocky Linux 8 5.1.17-1.module+el8.4.0+414+2e7afcdd
  • libzip Rocky Linux 8 1.5.1-2.module+el8.4.0+413+c9202dda
  • php-pear Rocky Linux 8 1:1.10.5-9.module+el8.4.0+413+c9202dda
  • php-pecl-zip Rocky Linux 8 1.15.3-1.module+el8.4.0+413+c9202dda
  • php-pecl-apcu Rocky Linux 8 5.1.12-2.module+el8.4.0+413+c9202dda

rocky linux advisories RLSA-2019:3736RLSA-2019:3735

  • php7 Alpine 3.15, Alpine 3.14, Alpine 3.13 +3 more 7.3.11-r0
  • php7 Alpine 3.7 7.1.33-r0
  • php7 Alpine 3.9, Alpine 3.8 7.2.24-r0

alpine advisories ALPINE-CVE-2019-11043

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • php Arch Linux 7.3.11-1

arch linux advisories AVG-1052

Is CVE-2019-11043 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

Check with Fencer

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2019-11043 updated cvss 8.1

php: underflow in env_path_info in fpm_main.c

  • Red Hat Enterprise Linux AppStream (v. 8) php 7.3.5-5.module+el8.1.0+4560+e0eee7d6, php 7.2.11-4.module+el8.1.0+4555+f5cb8e18, libzip 1.5.1-2.module+el8.1.0+3202+af5476b9, libzip 1.5.2-1.module+el8.1.0+3189+a1bff096, php-gd 7.3.5-5.module+el8.1.0+4560+e0eee7d6, php-cli 7.3.5-5.module+el8.1.0+4560+e0eee7d6, +58 more
    fixed: vendor fix RHSA-2019:3735
  • Red Hat Enterprise Linux AppStream E4S (v. 8.0) libzip 1.5.1-1.module+el8+2561+1aca3413, php-pear 1.10.5-8.module+el8+2561+1aca3413, php 7.2.11-1.1.module+el8.0.0+4664+17bd8d65, apcu-panel 5.1.12-1.module+el8+2561+1aca3413, libzip-tools 1.5.1-1.module+el8+2561+1aca3413, php-gd 7.2.11-1.1.module+el8.0.0+4664+17bd8d65, +26 more
    fixed: vendor fix RHSA-2020:0322
  • Red Hat Enterprise Linux Client Optional (v. 7) php 5.4.16-46.1.el7_7, php-gd 5.4.16-46.1.el7_7, php-cli 5.4.16-46.1.el7_7, php-dba 5.4.16-46.1.el7_7, php-fpm 5.4.16-46.1.el7_7, php-pdo 5.4.16-46.1.el7_7, +18 more Red Hat Enterprise Linux ComputeNode Optional (v. 7) php 5.4.16-46.1.el7_7, php-gd 5.4.16-46.1.el7_7, php-cli 5.4.16-46.1.el7_7, php-dba 5.4.16-46.1.el7_7, php-fpm 5.4.16-46.1.el7_7, php-pdo 5.4.16-46.1.el7_7, +18 more
    fixed: vendor fix RHSA-2019:3286
  • Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.6) php 5.4.16-46.1.el7_6, php-gd 5.4.16-46.1.el7_6, php-cli 5.4.16-46.1.el7_6, php-dba 5.4.16-46.1.el7_6, php-fpm 5.4.16-46.1.el7_6, php-pdo 5.4.16-46.1.el7_6, +18 more
    fixed: vendor fix RHSA-2020:2835
  • Red Hat Enterprise Linux Desktop Optional (v. 6) php 5.3.3-50.el6_10, php-gd 5.3.3-50.el6_10, php-cli 5.3.3-50.el6_10, php-dba 5.3.3-50.el6_10, php-fpm 5.3.3-50.el6_10, php-pdo 5.3.3-50.el6_10, +20 more
    fixed: vendor fix RHSA-2019:3287
  • Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7) php 5.4.16-46.1.el7_6, php-gd 5.4.16-46.1.el7_6, php-cli 5.4.16-46.1.el7_6, php-pdo 5.4.16-46.1.el7_6, php-xml 5.4.16-46.1.el7_6, php-ldap 5.4.16-46.1.el7_6, +8 more Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7) php-dba 5.4.16-46.1.el7_6, php-fpm 5.4.16-46.1.el7_6, php-intl 5.4.16-46.1.el7_6, php-snmp 5.4.16-46.1.el7_6, php-bcmath 5.4.16-46.1.el7_6, php-pspell 5.4.16-46.1.el7_6, +4 more
    fixed: vendor fix RHSA-2020:2835
  • Red Hat Enterprise Linux HPC Node (v. 6) php 5.3.3-50.el6_10, php-cli 5.3.3-50.el6_10, php-common 5.3.3-50.el6_10 Red Hat Enterprise Linux HPC Node Optional (v. 6) php 5.3.3-50.el6_10, php-gd 5.3.3-50.el6_10, php-dba 5.3.3-50.el6_10, php-fpm 5.3.3-50.el6_10, php-pdo 5.3.3-50.el6_10, php-xml 5.3.3-50.el6_10, +18 more Red Hat Enterprise Linux Server (v. 6) php 5.3.3-50.el6_10, php-gd 5.3.3-50.el6_10, php-cli 5.3.3-50.el6_10, php-pdo 5.3.3-50.el6_10, php-xml 5.3.3-50.el6_10, php-ldap 5.3.3-50.el6_10, +6 more
    fixed: vendor fix RHSA-2019:3287
  • Red Hat Enterprise Linux Server (v. 7) php 5.4.16-46.1.el7_7, php-gd 5.4.16-46.1.el7_7, php-cli 5.4.16-46.1.el7_7, php-pdo 5.4.16-46.1.el7_7, php-xml 5.4.16-46.1.el7_7, php-ldap 5.4.16-46.1.el7_7, +8 more
    fixed: vendor fix RHSA-2019:3286
show 10 more
  • Red Hat Enterprise Linux Server EUS (v. 7.6) php 5.4.16-46.1.el7_6, php-gd 5.4.16-46.1.el7_6, php-cli 5.4.16-46.1.el7_6, php-pdo 5.4.16-46.1.el7_6, php-xml 5.4.16-46.1.el7_6, php-ldap 5.4.16-46.1.el7_6, +8 more
    fixed: vendor fix RHSA-2020:2835
  • Red Hat Enterprise Linux Server Optional (v. 6) php-dba 5.3.3-50.el6_10, php-fpm 5.3.3-50.el6_10, php-zts 5.3.3-50.el6_10, php-imap 5.3.3-50.el6_10, php-intl 5.3.3-50.el6_10, php-snmp 5.3.3-50.el6_10, +8 more
    fixed: vendor fix RHSA-2019:3287
  • Red Hat Enterprise Linux Server Optional (v. 7) php-dba 5.4.16-46.1.el7_7, php-fpm 5.4.16-46.1.el7_7, php-intl 5.4.16-46.1.el7_7, php-snmp 5.4.16-46.1.el7_7, php-bcmath 5.4.16-46.1.el7_7, php-pspell 5.4.16-46.1.el7_7, +4 more
    fixed: vendor fix RHSA-2019:3286
  • Red Hat Enterprise Linux Server Optional EUS (v. 7.6) php-dba 5.4.16-46.1.el7_6, php-fpm 5.4.16-46.1.el7_6, php-intl 5.4.16-46.1.el7_6, php-snmp 5.4.16-46.1.el7_6, php-bcmath 5.4.16-46.1.el7_6, php-pspell 5.4.16-46.1.el7_6, +4 more
    fixed: vendor fix RHSA-2020:2835
  • Red Hat Enterprise Linux Workstation (v. 6) php 5.3.3-50.el6_10, php-gd 5.3.3-50.el6_10, php-cli 5.3.3-50.el6_10, php-pdo 5.3.3-50.el6_10, php-xml 5.3.3-50.el6_10, php-ldap 5.3.3-50.el6_10, +6 more
    fixed: vendor fix RHSA-2019:3287
  • Red Hat Enterprise Linux Workstation (v. 7) php 5.4.16-46.1.el7_7, php-gd 5.4.16-46.1.el7_7, php-cli 5.4.16-46.1.el7_7, php-pdo 5.4.16-46.1.el7_7, php-xml 5.4.16-46.1.el7_7, php-ldap 5.4.16-46.1.el7_7, +8 more
    fixed: vendor fix RHSA-2019:3286
  • Red Hat Enterprise Linux Workstation Optional (v. 6) php-dba 5.3.3-50.el6_10, php-fpm 5.3.3-50.el6_10, php-zts 5.3.3-50.el6_10, php-imap 5.3.3-50.el6_10, php-intl 5.3.3-50.el6_10, php-snmp 5.3.3-50.el6_10, +8 more
    fixed: vendor fix RHSA-2019:3287
  • Red Hat Enterprise Linux Workstation Optional (v. 7) php-dba 5.4.16-46.1.el7_7, php-fpm 5.4.16-46.1.el7_7, php-intl 5.4.16-46.1.el7_7, php-snmp 5.4.16-46.1.el7_7, php-bcmath 5.4.16-46.1.el7_7, php-pspell 5.4.16-46.1.el7_7, +4 more
    fixed: vendor fix RHSA-2019:3286
  • Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 6) rh-php70-php 7.0.27-2.el6, rh-php70-php-gd 7.0.27-2.el6, rh-php70-php-cli 7.0.27-2.el6, rh-php70-php-dba 7.0.27-2.el6, rh-php70-php-dbg 7.0.27-2.el6, rh-php70-php-fpm 7.0.27-2.el6, +24 more Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 7) rh-php70-php 7.0.27-2.el7, rh-php71-php 7.1.30-2.el7, rh-php72-php 7.2.24-1.el7, rh-php70-php-gd 7.0.27-2.el7, rh-php71-php-gd 7.1.30-2.el7, rh-php72-php-gd 7.2.24-1.el7, +78 more Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.5) rh-php70-php 7.0.27-2.el7, rh-php71-php 7.1.30-2.el7, rh-php72-php 7.2.24-1.el7, rh-php70-php-gd 7.0.27-2.el7, rh-php71-php-gd 7.1.30-2.el7, rh-php72-php-gd 7.2.24-1.el7, +78 more Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.6) rh-php70-php 7.0.27-2.el7, rh-php71-php 7.1.30-2.el7, rh-php72-php 7.2.24-1.el7, rh-php70-php-gd 7.0.27-2.el7, rh-php71-php-gd 7.1.30-2.el7, rh-php72-php-gd 7.2.24-1.el7, +78 more Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.7) rh-php70-php 7.0.27-2.el7, rh-php71-php 7.1.30-2.el7, rh-php72-php 7.2.24-1.el7, rh-php70-php-gd 7.0.27-2.el7, rh-php71-php-gd 7.1.30-2.el7, rh-php72-php-gd 7.2.24-1.el7, +78 more Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 6) rh-php70-php 7.0.27-2.el6, rh-php70-php-gd 7.0.27-2.el6, rh-php70-php-cli 7.0.27-2.el6, rh-php70-php-dba 7.0.27-2.el6, rh-php70-php-dbg 7.0.27-2.el6, rh-php70-php-fpm 7.0.27-2.el6, +24 more
    +1 more products
    Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 7) rh-php70-php 7.0.27-2.el7, rh-php71-php 7.1.30-2.el7, rh-php72-php 7.2.24-1.el7, rh-php70-php-gd 7.0.27-2.el7, rh-php71-php-gd 7.1.30-2.el7, rh-php72-php-gd 7.2.24-1.el7, +78 more
    fixed: vendor fix RHSA-2019:3724
  • Red Hat Enterprise Linux 5 php, php53 Red Hat Software Collections rh-php73-php, rh-php73-php-gd, rh-php73-php-cli, rh-php73-php-dba, rh-php73-php-dbg, rh-php73-php-fpm, +22 more
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

cisa ICSA-26-239-02 updated cvss 8.7

All-Line Equipment Company Fuel-Boss

  • All-Line Equipment Company Fuel-Boss V1 Backflush Systems >=, <=PHP_7.1.5_7.1.5 All-Line Equipment Company Fuel-Boss V1 Master/Slave >=, <=PHP_7.1.5_7.1.5 All-Line Equipment Company Fuel-Boss V1 Portal >=, <=PHP_7.1.5_7.1.5 All-Line Equipment Company Fuel-Boss V1 Standard >=, <=PHP_7.1.5_7.1.5
    affected: vendor fix, mitigation “All-Line Equipment Company recommends either taking products that are not fixed off the Internet or restricting the IP addresses that can access them at the router level.”

From CISA ICS and IT advisories (CSAF, https://github.com/cisagov/CSAF), a U.S. Government work; changed: reduced to products, statuses and remediations. CISA notification · csaf

cisa ICSA-26-027-02 updated cvss 9.8

Festo Didactic SE MES PC

  • Festo Didactic SE MES PC shipped_with_Windows_10
    affected: vendor fix

Facts from CISA's republication of the vendor's own advisory (CSAF); the linked advisory is the authoritative source. CISA notification · csaf

Timeline

  1. First public exploit (Metasploit exploit/multi/http/php_fpm_rce)
  2. Published
  3. Added to CISA KEV
  4. CISA patch deadline
  5. CISA SSVC: exploitation active

Known exploited

Added
4y ago
Patch by
2022-04-15 (4y ago)
Ransomware
Known to be used in ransomware campaigns
Required action
Apply updates per vendor instructions.
Vendor, product
PHP, FastCGI Process Manager (FPM)
CISA name
PHP FastCGI Process Manager (FPM) Buffer Overflow Vulnerability

CISA SSVC

Exploitation
Active, exploited in the wild
Automatable
no
Technical impact
total
Assessed
last yr.

Exploit prediction

99.78% chance of exploitation in the next 30 days, higher than 99.9% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • Metasploit exploit/multi/http/php_fpm_rce PHP-FPM Underflow RCE metasploit exploit, normal rank, 2019-10-22
  • EDB-48182 PHP-FPM - Underflow Remote Code Execution (Metasploit) remote, 2020-03-09
  • EDB-47553 PHP-FPM + Nginx - Remote Code Execution webapps, 2019-10-28
  • Nuclei template PHP-FPM Path Info Buffer Underflow - Remote Code Execution nuclei detection template
  • bugs.php.net https://bugs.php.net/bug.php?id=78599 referenced PoC, tagged "exploit" by a source, unverified
  • github.com https://github.com/neex/phuip-fpizdam referenced PoC, tagged "exploit" by a source, unverified
  • packetstormsecurity.com http://packetstormsecurity.com/files/156642/PHP-FPM-7.x-Remote-Code-Execution.html referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 3.1 8.7 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N
NVD 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 7.5 AV:N/AC:L/Au:N/C:P/I:P/A:P

Affected products

  • PHP PHP

Classification

Weakness
  • CWE-120 Buffer Copy without Checking Size of Input
  • CWE-787 Out-of-bounds Write
Technology feeds

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.