medium
4.3
CWE
476 NVD-CWE-Other
Advisory Published
CVE Published
Updated

CVE-2011-0421: Null Pointer Dereference

First published: Thu Mar 17 2011(Updated: )

It was reported that ZipArchive() would segfault when opening an empty archive with the FL_UNCHANGED flag set [1]. This is corrected in upstream PHP 5.3.6 [2],[3]. [1] <a href="http://bugs.php.net/bug.php?id=53885">http://bugs.php.net/bug.php?id=53885</a> [2] <a href="http://www.php.net/ChangeLog-5.php#5.3.6">http://www.php.net/ChangeLog-5.php#5.3.6</a> [3] <a href="http://svn.php.net/viewvc/?view=revision&amp;amp;revision=307867">http://svn.php.net/viewvc/?view=revision&amp;amp;revision=307867</a>

Credit: cret@cert.org

Affected SoftwareAffected VersionHow to fix
PHP=4.3.9
PHP=4.4.9
PHP=3.0
PHP=5.2.9
PHP=4.0-beta1
PHP=3.0.5
PHP=3.0.11
PHP=5.2.4
PHP=5.1.5
PHP=5.1.2
PHP=4.0-beta4
PHP=5.3.1
PHP=4.2.0
PHP=5.1.1
PHP=3.0.1
PHP=5.2.14
PHP=3.0.2
PHP=4.4.4
PHP=5.0.0-beta1
PHP=4.1.0
PHP=5.1.6
PHP=5.2.16
PHP=4.3.4
PHP=4.0.4
PHP=4.3.0
PHP=4.0.5
PHP=5.2.7
PHP=5.2.2
PHP=3.0.8
PHP=5.0.5
PHP=4.3.6
PHP=3.0.13
PHP=5.0.1
PHP=5.1.4
PHP=5.2.5
PHP=4.3.7
PHP=5.0.4
PHP=4.2.2
PHP=4.4.2
PHP=5.2.12
PHP=3.0.7
PHP=4.3.2
PHP=4.3.11
PHP=4.0.0
PHP=3.0.6
PHP=3.0.17
PHP=4.0.7
PHP=4.0.2
PHP=4.3.3
PHP=2.0
PHP=4.1.1
PHP=3.0.15
PHP=3.0.16
PHP=5.2.11
PHP=5.2.6
PHP=5.2.17
PHP=5.3.0
PHP=4.4.3
PHP=5.0.0-rc2
PHP=5.2.3
PHP=5.3.3
PHP=5.0.3
PHP=3.0.10
PHP=3.0.4
PHP=4.2.3
PHP=5.1.0
PHP=4.4.5
PHP=5.2.13
PHP=5.0.0-rc3
PHP=4.0
PHP=4.0-beta2
PHP=2.0b10
PHP=4.4.8
PHP=4.0.6
PHP=5.2.0
PHP=5.2.4
PHP=4.1.2
PHP=5.0.0-beta3
PHP=5.3.2
PHP<=5.3.5
PHP=5.3.4
PHP=4.3.1
PHP=5.1.3
PHP=3.0.18
PHP=4.0-beta_4_patch1
PHP=4.4.0
PHP=5.2.10
PHP=4.3.10
PHP=4.2.1
PHP=5.0.0-rc1
PHP=4.0.1
PHP=1.0
PHP=5.0.2
PHP=4.4.6
PHP=3.0.12
PHP=5.2.15
PHP=4.4.1
PHP=4.0-beta3
PHP=5.2.1
PHP=4.0.3
PHP=3.0.14
PHP=3.0.9
PHP=3.0.3
PHP=5.0.0-beta4
PHP=5.0.0
PHP=4.3.8
PHP=4.3.5
PHP=5.0.0-beta2
PHP=5.2.8
PHP=4.4.7

Remedy

http://svn.php.net/viewvc/?view=revision&revision=307867

Remedy

https://bugzilla.redhat.com/show_bug.cgi?id=688735

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Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2011-0421?

    CVE-2011-0421 has a severity rating of medium as it can cause a segmentation fault when an empty archive is opened.

  • How do I fix CVE-2011-0421?

    To fix CVE-2011-0421, you should upgrade PHP to version 5.3.6 or later.

  • Which PHP versions are affected by CVE-2011-0421?

    CVE-2011-0421 affects multiple versions of PHP including 3.0, 4.x, and 5.2 series prior to 5.3.6.

  • How does CVE-2011-0421 affect PHP applications?

    CVE-2011-0421 can lead to application crashes when attempting to process empty zip archives, potentially disrupting service availability.

  • Is it safe to use PHP versions before 5.3.6 after CVE-2011-0421?

    Using PHP versions before 5.3.6 poses a risk due to the vulnerability present in those releases.

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