CVE-2016-6294

Public Exploit

Description

The locale_accept_from_http function in ext/intl/locale/locale_methods.c in PHP before 5.5.38, 5.6.x before 5.6.24, and 7.x before 7.0.9 does not properly restrict calls to the ICU uloc_acceptLanguageFromHTTP function, which allows remote attackers to cause a denial of service (out-of-bounds read) or possibly have unspecified other impact via a call with a long argument.

Category

9.8
CVSS
Severity: Critical
CVSS 3.0 •
CVSS 2.0 •
EPSS 5.10% Top 15%
Vendor Advisory apple.com Vendor Advisory gentoo.org Vendor Advisory redhat.com Vendor Advisory debian.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://www.securityfocus.com/bid/92115 third party advisory vdb entry
http://lists.apple.com/archives/security-announce/2016/Sep/msg00006.html vendor advisory
https://security.gentoo.org/glsa/201611-22 vendor advisory
http://git.php.net/?p=php-src.git%3Ba=commit%3Bh=aa82e99ed8003c01f1ef4f0940e56b85c5b032d4
http://rhn.redhat.com/errata/RHSA-2016-2750.html vendor advisory
https://bugs.php.net/72533 patch exploit mitigation third party advisory issue tracking
http://php.net/ChangeLog-5.php release notes
http://www.securitytracker.com/id/1036430 vdb entry
http://www.debian.org/security/2016/dsa-3631 vendor advisory
http://php.net/ChangeLog-7.php release notes
http://openwall.com/lists/oss-security/2016/07/24/2 mailing list
https://support.apple.com/HT207170

Frequently Asked Questions

What is the severity of CVE-2016-6294?
CVE-2016-6294 has been scored as a critical severity vulnerability.
How to fix CVE-2016-6294?
To fix CVE-2016-6294, 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-2016-6294 being actively exploited in the wild?
It is possible that CVE-2016-6294 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~5% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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