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CVE-2019-11043: PHP FastCGI Process Manager (FPM) Buffer Overflow Vulnerability

criticalknown exploitedpublic exploitCVE-2019-11043
Actively exploited. At least one CVE in this advisory is listed in the CISA Known Exploited Vulnerabilities catalog — exploitation has been observed in the wild. Treat remediation as urgent.
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.

CSIRTS triage

vendor: PHPproduct: PHPRemote code execution
What
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.
Who is affected
Users of PHP with certain FPM configurations are affected.
Urgency
Remediation is critical due to active exploitation of the vulnerability.
Action
Update PHP to the latest version.

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Details

Source
CISA Known Exploited Vulnerabilities (US · database · site)
Severity
critical
Published
2022-03-25
Exploitation
Observed in the wild (CISA KEV)

Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2019-11043

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Referenced CVEs

CVECSIRTS overviewExternal
CVE-2019-11043coverage & exploitation statusNVD · CVE.org

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