medium
6.5
CWE
476
Advisory Published
Updated

CVE-2016-6292: Null Pointer Dereference

First published: Mon Jul 25 2016(Updated: )

The exif_process_user_comment function in ext/exif/exif.c in PHP before 5.5.38, 5.6.x before 5.6.24, and 7.x before 7.0.9 allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) via a crafted JPEG image.

Credit: cve@mitre.org

Affected SoftwareAffected VersionHow to fix
PHP<7.0.9
7.0.9
PHP<=5.5.37
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
PHP=5.6.4
PHP=5.6.5
PHP=5.6.6
PHP=5.6.7
PHP=5.6.8
PHP=5.6.9
PHP=5.6.10
PHP=5.6.11
PHP=5.6.12
PHP=5.6.13
PHP=5.6.14
PHP=5.6.15
PHP=5.6.16
PHP=5.6.17
PHP=5.6.18
PHP=5.6.19
PHP=5.6.20
PHP=5.6.21
PHP=5.6.22
PHP=5.6.23
PHP=7.0.0
PHP=7.0.1
PHP=7.0.2
PHP=7.0.3
PHP=7.0.4
PHP=7.0.5
PHP=7.0.8

Remedy

http://git.php.net/?p=php-src.git;a=commit;h=41131cd41d2fd2e0c2f332a27988df75659c42e4

Remedy

http://openwall.com/lists/oss-security/2016/07/24/2

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Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2016-6292?

    CVE-2016-6292 is considered a moderate severity vulnerability due to its potential to cause denial of service through a NULL pointer dereference.

  • How do I fix CVE-2016-6292?

    To fix CVE-2016-6292, update PHP to versions 5.5.38, 5.6.24, or 7.0.9 or later.

  • What are the affected PHP versions for CVE-2016-6292?

    CVE-2016-6292 affects PHP versions prior to 5.5.38, all versions of 5.6 before 5.6.24, and all versions before 7.0.9.

  • What type of attack does CVE-2016-6292 enable?

    CVE-2016-6292 enables remote attackers to execute a denial of service attack, causing application crashes.

  • Is it safe to use PHP versions after the fixes for CVE-2016-6292?

    Yes, PHP versions 5.5.38, 5.6.24, and 7.0.9 or later are considered safe from the vulnerabilities introduced by CVE-2016-6292.

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