CVE-2016-4073: Integer Overflow

Published May 20, 2016
·
Updated

Fixed bug (AddressSanitizer: negative-size-param (-1) in mbflstrcut). (CVE-2016-4073)

Other sources

Multiple integer overflows in the mbflstrcut function in ext/mbstring/libmbfl/mbfl/mbfilter.c in PHP before 5.5.34, 5.6.x before 5.6.20, and 7.x before 7.0.5 allow remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via a crafted mbstrcut call.

Affected Software

79 affected componentsFixes available
debian/php5
debian/php7.0
PHP PHP=5.5.0
PHP PHP=5.5.0-alpha1
PHP PHP=5.5.0-alpha2
PHP PHP=5.5.0-alpha3
PHP PHP=5.5.0-alpha4
PHP PHP=5.5.0-alpha5
PHP PHP=5.5.0-alpha6
PHP PHP=5.5.0-beta1
PHP PHP=5.5.0-beta2
PHP PHP=5.5.0-beta3
PHP PHP=5.5.0-beta4
PHP PHP=5.5.0-rc1
PHP PHP=5.5.0-rc2
PHP PHP=5.5.1
PHP PHP=5.5.2
PHP PHP=5.5.3
PHP PHP=5.5.4
PHP PHP=5.5.5
PHP PHP=5.5.6
PHP PHP=5.5.7
PHP PHP=5.5.8
PHP PHP=5.5.9
PHP PHP=5.5.10
PHP PHP=5.5.11
PHP PHP=5.5.12
PHP PHP=5.5.13
PHP PHP=5.5.14
PHP PHP=5.5.18
PHP PHP=5.5.19
PHP PHP=5.5.20
PHP PHP=5.5.21
PHP PHP=5.5.22
PHP PHP=5.5.23
PHP PHP=5.5.24
PHP PHP=5.5.25
PHP PHP=5.5.26
PHP PHP=5.5.27
PHP PHP=5.5.29
PHP PHP=5.5.30
PHP PHP=5.5.32
PHP PHP=5.5.33
PHP PHP=5.6.0
PHP PHP=5.6.0-alpha1
PHP PHP=5.6.0-alpha2
PHP PHP=5.6.0-alpha3
PHP PHP=5.6.0-alpha4
PHP PHP=5.6.0-alpha5
PHP PHP=5.6.0-beta1
PHP PHP=5.6.0-beta2
PHP PHP=5.6.0-beta3
PHP PHP=5.6.0-beta4
PHP PHP=5.6.1
PHP PHP=5.6.2
PHP PHP=5.6.3
PHP PHP=5.6.4
PHP PHP=5.6.5
PHP PHP=5.6.6
PHP PHP=5.6.7
PHP PHP=5.6.8
PHP PHP=5.6.9
PHP PHP=5.6.10
PHP PHP=5.6.11
PHP PHP=5.6.12
PHP PHP=5.6.13
PHP PHP=5.6.14
PHP PHP=5.6.15
PHP PHP=5.6.16
PHP PHP=5.6.17
PHP PHP=5.6.18
PHP PHP=5.6.19
PHP PHP=7.0.0
PHP PHP=7.0.1
PHP PHP=7.0.2
PHP PHP=7.0.3
PHP PHP=7.0.4
Apple iOS and macOS<=10.11.3
PHP PHP<7.0.5
7.0.5

Remediation

Patch Available

https://git.php.net/?p=php-src.git;a=commit;h=64f42c73efc58e88671ad76b6b6bc8e2b62713e1

Event History

May 20, 2016
CVE Published
via MITRE·10:00 AM
Data Sourced
via MITRE·10:00 AM
Description
Jan 11, 2024
Data Sourced
via Launchpad·10:17 PM
Description
Sep 16, 2024
Data Sourced
via Ubuntu·01:14 AM
RemedyDescriptionSeverityAffected Software

Frequently Asked Questions

1

What is the severity of CVE-2016-4073?

CVE-2016-4073 has been classified as a medium severity vulnerability due to its potential for remote code execution.

2

How do I fix CVE-2016-4073?

To fix CVE-2016-4073, you must upgrade PHP to version 5.5.34, 5.6.20, or 7.0.5 or later.

3

Which PHP versions are affected by CVE-2016-4073?

CVE-2016-4073 affects PHP versions prior to 5.5.34, 5.6.x before 5.6.20, and 7.x before 7.0.5.

4

Is CVE-2016-4073 exploitable remotely?

Yes, CVE-2016-4073 can be exploited remotely by attackers to execute arbitrary code.

5

What component of PHP is impacted by CVE-2016-4073?

CVE-2016-4073 impacts the mbfl_strcut function in the mbstring extension of PHP.

Company

Resources

Contact

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