high
7.5
CWE
416
Advisory Published
CVE Published
Updated

CVE-2014-8142: Use After Free

First published: Thu Dec 18 2014(Updated: )

A use-after-free flaw was found in PHP unserialize(). An untrusted input could cause PHP interpreter to crash or, possibly, execute arbitrary code when processed using unserialize(). Upstream bug (currently private): <a href="https://bugs.php.net/bug.php?id=68594">https://bugs.php.net/bug.php?id=68594</a> Upstream commit: <a href="http://git.php.net/?p=php-src.git;a=commitdiff;h=630f9c33c23639de85c3fd306b209b538b73b4c9">http://git.php.net/?p=php-src.git;a=commitdiff;h=630f9c33c23639de85c3fd306b209b538b73b4c9</a> <a href="http://git.php.net/?p=php-src.git;a=commitdiff;h=53f129a44d3c4ec0fae57993b9ae2f6cb48973cc">http://git.php.net/?p=php-src.git;a=commitdiff;h=53f129a44d3c4ec0fae57993b9ae2f6cb48973cc</a> Note that unserialize() is unsafe for use on untrusted inputs, as is documented in the PHP manual for the function: <a href="http://php.net/manual/en/function.unserialize.php">http://php.net/manual/en/function.unserialize.php</a>

Credit: secalert@redhat.com

Affected SoftwareAffected VersionHow to fix
redhat/php<5.4.36
5.4.36
redhat/php<5.5.20
5.5.20
redhat/php<5.6.4
5.6.4
PHP<=5.4.35
PHP=5.5.0
PHP=5.5.0-alpha1
PHP=5.5.0-alpha2
PHP=5.5.0-alpha3
PHP=5.5.0-alpha4
PHP=5.5.0-alpha5
PHP=5.5.0-alpha6
PHP=5.5.0-beta1
PHP=5.5.0-beta2
PHP=5.5.0-beta3
PHP=5.5.0-beta4
PHP=5.5.0-rc1
PHP=5.5.0-rc2
PHP=5.5.1
PHP=5.5.2
PHP=5.5.3
PHP=5.5.4
PHP=5.5.5
PHP=5.5.6
PHP=5.5.7
PHP=5.5.8
PHP=5.5.9
PHP=5.5.10
PHP=5.5.11
PHP=5.5.12
PHP=5.5.13
PHP=5.5.14
PHP=5.5.15
PHP=5.5.16
PHP=5.5.17
PHP=5.5.18
PHP=5.5.19
PHP=5.6.0
PHP=5.6.0-alpha1
PHP=5.6.0-alpha2
PHP=5.6.0-alpha3
PHP=5.6.0-alpha4
PHP=5.6.0-alpha5
PHP=5.6.0-beta1
PHP=5.6.0-beta2
PHP=5.6.0-beta3
PHP=5.6.0-beta4
PHP=5.6.1
PHP=5.6.2
PHP=5.6.3

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Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2014-8142?

    CVE-2014-8142 is considered to be a critical vulnerability due to the potential for arbitrary code execution.

  • How do I fix CVE-2014-8142?

    To fix CVE-2014-8142, upgrade PHP to version 5.4.36, 5.5.20, or 5.6.4 or later.

  • What systems are affected by CVE-2014-8142?

    CVE-2014-8142 affects specific versions of PHP, including all versions before 5.4.36, 5.5.20, and 5.6.4.

  • What causes the CVE-2014-8142 vulnerability?

    CVE-2014-8142 is caused by a use-after-free flaw in the PHP unserialize() function.

  • What could happen if CVE-2014-8142 is exploited?

    Exploitation of CVE-2014-8142 could lead to a crash of the PHP interpreter or the execution of arbitrary code.

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