CVE-2016-5137 Information

Description

The CSPSource::schemeMatches function in WebKit/Source/core/frame/csp/CSPSource.cpp in the Content Security Policy (CSP) implementation in Blink as used in Google Chrome before 52.0.2743.82 does not apply http :80 policies to https :443 URLs and does not apply ws :80 policies to wss :443 URLs which makes it easier for remote attackers to determine whether a specific HSTS web site has been visited by reading a CSP report. NOTE: this vulnerability is associated with a specification change after CVE-2016-1617 resolution.

CVSS Vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N

Reference

http://googlechromereleases.blogspot.com/2016/07/stable-channel-update.html http://lists.opensuse.org/opensuse-security-announce/2016-07/msg00020.html http://lists.opensuse.org/opensuse-security-announce/2016-07/msg00021.html http://lists.opensuse.org/opensuse-security-announce/2016-07/msg00022.html http://lists.opensuse.org/opensuse-security-announce/2016-07/msg00028.html http://rhn.redhat.com/errata/RHSA-2016-1485.html http://www.debian.org/security/2016/dsa-3637 http://www.securityfocus.com/bid/92053 http://www.securitytracker.com/id/1036428 http://www.ubuntu.com/usn/USN-3041-1 https://codereview.chromium.org/2125873003 https://crbug.com/625945 https://security.gentoo.org/glsa/201610-09

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

REQUIRED

Confidentiality Impact

UNCHANGED

Integrity Impact

LOW

Availability Impact

NONE

Base Score

NONE

Base Severity

4.3