CVE & CISA-KEV Catalog

CVE-2019-11043

HIGHCISA KEVEPSS 100th pctl
8.7
CVSS v3
NVD

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.

CWE-120Classic Buffer OverflowCWE-787Out-of-bounds Write

How to fix

Remediation Available
libapache2-mod-php5Ubuntu
Fixed in:5.5.9+dfsg-1ubuntu4.29+esm6USN-4166-2
libapache2-mod-php7.0Ubuntu
Fixed in:7.0.33-0ubuntu0.16.04.7USN-4166-1
libapache2-mod-php7.2Ubuntu
Fixed in:7.2.24-0ubuntu0.18.04.1USN-4166-1
php5Ubuntu
Fixed in:5.5.9+dfsg-1ubuntu4.29+esm6USN-4166-2
php5-cgiUbuntu
Fixed in:5.5.9+dfsg-1ubuntu4.29+esm6USN-4166-2
php5-cliUbuntu
Fixed in:5.5.9+dfsg-1ubuntu4.29+esm6USN-4166-2
php5-fpmUbuntu
Fixed in:5.5.9+dfsg-1ubuntu4.29+esm6USN-4166-2
php7.0Ubuntu
Fixed in:7.0.33-0ubuntu0.16.04.7USN-4166-1
php7.0-cgiUbuntu
Fixed in:7.0.33-0ubuntu0.16.04.7USN-4166-1
php7.0-cliUbuntu
Fixed in:7.0.33-0ubuntu0.16.04.7USN-4166-1
php7.0-fpmUbuntu
Fixed in:7.0.33-0ubuntu0.16.04.7USN-4166-1
php7.2Ubuntu
Fixed in:7.2.24-0ubuntu0.18.04.1USN-4166-1
php7.2-cgiUbuntu
Fixed in:7.2.24-0ubuntu0.18.04.1USN-4166-1
php7.2-cliUbuntu
Fixed in:7.2.24-0ubuntu0.18.04.1USN-4166-1
php7.2-fpmUbuntu
Fixed in:7.2.24-0ubuntu0.18.04.1USN-4166-1

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Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork
Attack ComplexityHigh
Privileges RequiredNone
User InteractionNone
ScopeChanged

Impact

ConfidentialityHigh
IntegrityHigh
AvailabilityNone

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N

Exploit Intelligence

99.47%probability of exploitation in 30 days
100thpercentile

Very high risk: more likely to be exploited than 100% of all known CVEs.

Known Exploited Vulnerability (CISA KEV)

PHP FastCGI Process Manager (FPM) Buffer Overflow Vulnerability

In some versions of PHP in certain configurations of FPM setup, it is possible to cause FPM module to write past allocated buffers allowing the possibility of remote code execution.

Apply updates per vendor instructions.

Remediation due: 2022-04-15

Associated with ransomware campaigns

References

Government Resource1

Related Vulnerabilities

Other CWE-120 (Classic Buffer Overflow) vulnerabilities, ordered by exploit likelihood. View all

CVESeverityCVSSEPSSExploitedFix
CVE-2014-0195Medium6.8100%-Fix
CVE-2017-7269Critical9.8100%KEV-
CVE-2011-4862High10.095%-Fix
CVE-2007-5659High7.894%KEVFix
CVE-2022-3786High7.592%-Fix
CVE-2009-3023High9.091%--
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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-11-03.