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    CVE-2009-3558

    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.

    Published:Sep 30, 2009
    Last Modified:Apr 23, 2026
    EPS:Nov 23, 2009
    EPSS Score:0.04443
    CVSS Score:6.8

    Affected Products

    Vendor
    Php
    Product
    Php

    Exploits

    http://securityreason.com/securityalert/6600http://securityreason.com/securityalert/6600

    Common Weakness Enumeration

    No CWE recorded yet

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

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    CVE-2026-7258 (CVSS 6.3) — In PHP versions 8.2.* before 8.2.31, 8.3.* before 8.3.31, 8.4.* before 8.4.21, and 8.5.* before 8.5.6, some fu…
    CVE-2026-6722 (CVSS 9.5) — In PHP versions 8.2.* before 8.2.31, 8.3.* before 8.3.31, 8.4.* before 8.4.21, and 8.5.* before 8.5.6, the SOA…
    CVE-2026-7259 (CVSS 2.1) — In PHP versions 8.2.* before 8.2.31, 8.3.* before 8.3.31, 8.4.* before 8.4.21, and 8.5.* before 8.5.6, a misma…
    CVE-2026-7261 (CVSS 6.3) — In PHP versions 8.2.* before 8.2.31, 8.3.* before 8.3.31, 8.4.* before 8.4.21, and 8.5.* before 8.5.6, when So…
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    References

    http://lists.apple.com/archives/security-announce/2010//Mar/msg00001.html
    http://news.php.net/php.announce/79
    http://secunia.com/advisories/37412
    http://secunia.com/advisories/37821
    http://securityreason.com/securityalert/6600
    http://support.apple.com/kb/HT4077
    http://svn.php.net/viewvc/php/php-src/branches/PHP_5_2/ext/posix/posix.c?view=log
    http://svn.php.net/viewvc/php/php-src/branches/PHP_5_3/ext/posix/posix.c?view=log
    http://svn.php.net/viewvc?view=revision&revision=288943
    http://www.mandriva.com/security/advisories?name=MDVSA-2009:285
    http://www.mandriva.com/security/advisories?name=MDVSA-2009:302
    http://www.mandriva.com/security/advisories?name=MDVSA-2009:303
    http://www.openwall.com/lists/oss-security/2009/11/20/2
    http://www.openwall.com/lists/oss-security/2009/11/20/3
    http://www.openwall.com/lists/oss-security/2009/11/20/5
    http://www.php.net/ChangeLog-5.php
    http://www.php.net/releases/5_2_12.php
    http://www.php.net/releases/5_3_1.php
    http://www.vupen.com/english/advisories/2009/3593
    http://lists.apple.com/archives/security-announce/2010//Mar/msg00001.html
    http://news.php.net/php.announce/79
    http://secunia.com/advisories/37412
    http://secunia.com/advisories/37821
    http://securityreason.com/securityalert/6600
    http://support.apple.com/kb/HT4077
    http://svn.php.net/viewvc/php/php-src/branches/PHP_5_2/ext/posix/posix.c?view=log
    http://svn.php.net/viewvc/php/php-src/branches/PHP_5_3/ext/posix/posix.c?view=log
    http://svn.php.net/viewvc?view=revision&revision=288943
    http://www.mandriva.com/security/advisories?name=MDVSA-2009:285
    http://www.mandriva.com/security/advisories?name=MDVSA-2009:302
    http://www.mandriva.com/security/advisories?name=MDVSA-2009:303
    http://www.openwall.com/lists/oss-security/2009/11/20/2
    http://www.openwall.com/lists/oss-security/2009/11/20/3
    http://www.openwall.com/lists/oss-security/2009/11/20/5
    http://www.php.net/ChangeLog-5.php
    http://www.php.net/releases/5_2_12.php
    http://www.php.net/releases/5_3_1.php
    http://www.vupen.com/english/advisories/2009/3593

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High