CVE-2016-5093

Public Exploit

Description

The get_icu_value_internal function in ext/intl/locale/locale_methods.c in PHP before 5.5.36, 5.6.x before 5.6.22, and 7.x before 7.0.7 does not ensure the presence of a '\0' character, which allows remote attackers to cause a denial of service (out-of-bounds read) or possibly have unspecified other impact via a crafted locale_get_primary_language call.

Category

8.6
CVSS
Severity: High
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.88% Top 30%
Vendor Advisory redhat.com Vendor Advisory debian.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://github.com/php/php-src/commit/97eff7eb57fc2320c267a949cffd622c38712484?w=1 patch
http://www.openwall.com/lists/oss-security/2016/05/26/3 mailing list release notes
http://rhn.redhat.com/errata/RHSA-2016-2750.html vendor advisory
https://bugs.php.net/bug.php?id=72241 exploit
http://www.debian.org/security/2016/dsa-3602 vendor advisory
http://php.net/ChangeLog-5.php patch release notes
http://php.net/ChangeLog-7.php patch release notes
http://www.securityfocus.com/bid/90946 vdb entry
https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05240731

Frequently Asked Questions

What is the severity of CVE-2016-5093?
CVE-2016-5093 has been scored as a high severity vulnerability.
How to fix CVE-2016-5093?
To fix CVE-2016-5093, 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-2016-5093 being actively exploited in the wild?
It is possible that CVE-2016-5093 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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