CVE-2016-1636 Information

Description

The PendingScript::notifyFinished function in WebKit/Source/core/dom/PendingScript.cpp in Google Chrome before 49.0.2623.75 relies on memory-cache information about integrity-check occurrences instead of integrity-check successes which allows remote attackers to bypass the Subresource Integrity (aka SRI) protection mechanism by triggering two loads of the same resource.

CVSS Vector

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

Reference

http://googlechromereleases.blogspot.com/2016/03/stable-channel-update.html http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00014.html http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00015.html http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00018.html http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00028.html http://www.debian.org/security/2016/dsa-3507 http://www.securityfocus.com/bid/84008 http://www.securitytracker.com/id/1035185 http://www.ubuntu.com/usn/USN-2920-1 https://code.google.com/p/chromium/issues/detail?id=584155 https://codereview.chromium.org/1713093002 https://security.gentoo.org/glsa/201603-09

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

9.8