critical
9.8
CWE
119 190
Advisory Published
Updated

CVE-2016-5769: Buffer Overflow

First published: Sun Aug 07 2016(Updated: )

Multiple integer overflows in mcrypt.c in the mcrypt extension in PHP before 5.5.37, 5.6.x before 5.6.23, and 7.x before 7.0.8 allow remote attackers to cause a denial of service (heap-based buffer overflow and application crash) or possibly have unspecified other impact via a crafted length value, related to the (1) mcrypt_generic and (2) mdecrypt_generic functions.

Credit: cve@mitre.org

Affected SoftwareAffected VersionHow to fix
PHP<7.0.8
7.0.8
PHP<=5.5.36
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=7.0.0
PHP=7.0.1
PHP=7.0.2
PHP=7.0.3
PHP=7.0.4
PHP=7.0.5
PHP=7.0.6
PHP=7.0.7

Remedy

http://php.net/ChangeLog-5.php

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Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2016-5769?

    CVE-2016-5769 has a severity rating that allows remote attackers to cause a denial of service through heap-based buffer overflow.

  • How do I fix CVE-2016-5769?

    To fix CVE-2016-5769, update PHP to version 5.5.37, 5.6.23, or 7.0.8 or later.

  • What versions of PHP are affected by CVE-2016-5769?

    CVE-2016-5769 affects PHP versions prior to 5.5.37, 5.6.23, and 7.0.8.

  • What type of vulnerability is CVE-2016-5769?

    CVE-2016-5769 is an integer overflow vulnerability that can lead to heap-based buffer overflow.

  • Can CVE-2016-5769 be exploited remotely?

    Yes, CVE-2016-5769 can be exploited remotely, allowing attackers to crash the application.

Company

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