CVE-2016-4070

Public Exploit

Description

Integer overflow in the php_raw_url_encode function in ext/standard/url.c in PHP before 5.5.34, 5.6.x before 5.6.20, and 7.x before 7.0.5 allows remote attackers to cause a denial of service (application crash) via a long string to the rawurlencode function. NOTE: the vendor says "Not sure if this qualifies as security issue (probably not).

Category

7.5
CVSS
Severity: High
CVSS 3.0 •
CVSS 2.0 •
EPSS 5.38% Top 15%
Vendor Advisory ubuntu.com Vendor Advisory redhat.com Vendor Advisory debian.org Vendor Advisory ubuntu.com Vendor Advisory apple.com Vendor Advisory opensuse.org Vendor Advisory opensuse.org Vendor Advisory opensuse.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://www.ubuntu.com/usn/USN-2952-1 vendor advisory
https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05320149
http://www.php.net/ChangeLog-7.php
https://git.php.net/?p=php-src.git%3Ba=commit%3Bh=95433e8e339dbb6b5d5541473c1661db6ba2c451
https://support.apple.com/HT206567
http://rhn.redhat.com/errata/RHSA-2016-2750.html vendor advisory
http://www.debian.org/security/2016/dsa-3560 vendor advisory
http://www.ubuntu.com/usn/USN-2952-2 vendor advisory
http://lists.apple.com/archives/security-announce/2016/May/msg00004.html vendor advisory
http://www.php.net/ChangeLog-5.php
https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05390722
https://bugs.php.net/bug.php?id=71798 exploit
https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05240731
http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00031.html vendor advisory
http://www.securityfocus.com/bid/85801 vdb entry
http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00033.html vendor advisory
http://www.openwall.com/lists/oss-security/2016/04/24/1 mailing list
http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00056.html vendor advisory

Frequently Asked Questions

What is the severity of CVE-2016-4070?
CVE-2016-4070 has been scored as a high severity vulnerability.
How to fix CVE-2016-4070?
To fix CVE-2016-4070, 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-2016-4070 being actively exploited in the wild?
It is possible that CVE-2016-4070 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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