critical
9.8
CWE
119
Advisory Published
Updated

CVE-2016-6296: Buffer Overflow

First published: Mon Jul 25 2016(Updated: )

Integer signedness error in the simplestring_addn function in simplestring.c in xmlrpc-epi through 0.54.2, as used 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 (heap-based buffer overflow) or possibly have unspecified other impact via a long first argument to the PHP xmlrpc_encode_request function.

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

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Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2016-6296?

    CVE-2016-6296 has a high severity rating due to its potential to cause a denial of service and security risks.

  • How do I fix CVE-2016-6296?

    To fix CVE-2016-6296, upgrade PHP to version 5.5.38, 5.6.24, or 7.0.9 or later.

  • What systems are affected by CVE-2016-6296?

    CVE-2016-6296 affects PHP versions prior to 5.5.38, 5.6.x before 5.6.24, and 7.x before 7.0.9.

  • What type of vulnerability is CVE-2016-6296?

    CVE-2016-6296 is an integer signedness error leading to a heap-based buffer overflow.

  • Can CVE-2016-6296 be exploited remotely?

    Yes, CVE-2016-6296 can be exploited remotely to cause denial of service.

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