CVE-2015-8935

Description

The sapi_header_op function in main/SAPI.c in PHP before 5.4.38, 5.5.x before 5.5.22, and 5.6.x before 5.6.6 supports deprecated line folding without considering browser compatibility, which allows remote attackers to conduct cross-site scripting (XSS) attacks against Internet Explorer by leveraging (1) %0A%20 or (2) %0D%0A%20 mishandling in the header function.

Category

6.1
CVSS
Severity: Medium
CVSS 3.0 •
CVSS 2.0 •
EPSS 1.04% Top 25%
Vendor Advisory opensuse.org Vendor Advisory opensuse.org Vendor Advisory redhat.com Vendor Advisory opensuse.org Vendor Advisory php.net
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://github.com/php/php-src/commit/996faf964bba1aec06b153b370a7f20d3dd2bb8b?w=1 issue tracking patch
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://www.openwall.com/lists/oss-security/2016/06/20/3 mailing list patch
https://bugs.php.net/bug.php?id=68978 issue tracking vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00025.html vendor advisory

Frequently Asked Questions

What is the severity of CVE-2015-8935?
CVE-2015-8935 has been scored as a medium severity vulnerability.
How to fix CVE-2015-8935?
To fix CVE-2015-8935, 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-2015-8935 being actively exploited in the wild?
It is possible that CVE-2015-8935 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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