CVE-2009-3558

MEDIUM 6.8CVE-2009-3558 · Published 23/11/2009 · updated 16/06/2026

In short

CVE-2009-3558 is a MEDIUM (CVSS 6.8) vulnerability affecting php (php).
Chance of exploitation in the next 30 days (EPSS): 2.1%, higher than 81.6% of all vulnerabilities.
No patched version is listed yet: follow the vendor's advisory in References.

Package	Affected versions	Patched versions
php php	`= 1.0= 2.0= 2.0b10= 3.0= 3.0.1= 3.0.10= 3.0.11= 3.0.12= 3.0.13= 3.0.14= 3.0.15= 3.0.16= 3.0.17= 3.0.18= 3.0.2= 3.0.3= 3.0.4= 3.0.5= 3.0.6= 3.0.7= 3.0.8= 3.0.9= 4.0= 4.0.0= 4.0.1= 4.0.2= 4.0.3= 4.0.4= 4.0.5= 4.0.6= 4.0.7= 4.1.0= 4.1.1= 4.1.2= 4.2.0= 4.2.1= 4.2.2= 4.2.3= 4.3.0= 4.3.1= 4.3.10= 4.3.11= 4.3.2= 4.3.7= 4.4.2= 4.4.7= 4.4.8= 5.0.0= 5.0.3= 5.1.1= 5.2.1= 5.2.5= 5.2.6= 5.3.0≤ 5.2.10`	No fix yet

Description

The posix_mkfifo function in ext/posix/posix.c in PHP before 5.2.12 and 5.3.x before 5.3.1 allows context-dependent attackers to bypass open_basedir restrictions, and create FIFO files, via the pathname and mode arguments, as demonstrated by creating a .htaccess file.

References

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Package

Affected versions

Patched versions

php

= 1.0= 2.0= 2.0b10= 3.0= 3.0.1= 3.0.10= 3.0.11= 3.0.12= 3.0.13= 3.0.14= 3.0.15= 3.0.16= 3.0.17= 3.0.18= 3.0.2= 3.0.3= 3.0.4= 3.0.5= 3.0.6= 3.0.7= 3.0.8= 3.0.9= 4.0= 4.0.0= 4.0.1= 4.0.2= 4.0.3= 4.0.4= 4.0.5= 4.0.6= 4.0.7= 4.1.0= 4.1.1= 4.1.2= 4.2.0= 4.2.1= 4.2.2= 4.2.3= 4.3.0= 4.3.1= 4.3.10= 4.3.11= 4.3.2= 4.3.7= 4.4.2= 4.4.7= 4.4.8= 5.0.0= 5.0.3= 5.1.1= 5.2.1= 5.2.5= 5.2.6= 5.3.0≤ 5.2.10

No fix yet

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