CVE-2016-5768

Public Exploit

Description

Double free vulnerability in the _php_mb_regex_ereg_replace_exec function in php_mbregex.c in the mbstring extension in PHP before 5.5.37, 5.6.x before 5.6.23, and 7.x before 7.0.8 allows remote attackers to execute arbitrary code or cause a denial of service (application crash) by leveraging a callback exception.

Category

9.8
CVSS
Severity: Critical
CVSS 3.0 •
CVSS 2.0 •
EPSS 19.62% Top 5%
Vendor Advisory apple.com Vendor Advisory opensuse.org Vendor Advisory opensuse.org Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory debian.org Vendor Advisory php.net
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://lists.apple.com/archives/security-announce/2016/Sep/msg00006.html vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2016-07/msg00004.html vendor advisory
http://lists.opensuse.org/opensuse-updates/2016-08/msg00003.html vendor advisory
http://rhn.redhat.com/errata/RHSA-2016-2750.html vendor advisory
http://rhn.redhat.com/errata/RHSA-2016-2598.html vendor advisory
http://php.net/ChangeLog-5.php patch release notes
https://bugs.php.net/bug.php?id=72402 exploit vendor advisory
http://github.com/php/php-src/commit/5b597a2e5b28e2d5a52fc1be13f425f08f47cb62?w=1
http://www.openwall.com/lists/oss-security/2016/06/23/4 mailing list release notes
http://www.debian.org/security/2016/dsa-3618 vendor advisory
http://php.net/ChangeLog-7.php release notes
https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05240731
https://support.apple.com/HT207170
http://www.securityfocus.com/bid/91396 vdb entry

Frequently Asked Questions

What is the severity of CVE-2016-5768?
CVE-2016-5768 has been scored as a critical severity vulnerability.
How to fix CVE-2016-5768?
To fix CVE-2016-5768, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2016-5768 being actively exploited in the wild?
It is possible that CVE-2016-5768 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~20% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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