CVE-2016-8635 Information

Description

It was found that Diffie Hellman Client key exchange handling in NSS 3.21.x was vulnerable to small subgroup confinement attack. An attacker could use this flaw to recover private keys by confining the client DH key to small subgroup of the desired group.

CVSS Vector

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

Reference

http://rhn.redhat.com/errata/RHSA-2016-2779.html http://www.securityfocus.com/bid/94346 https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-8635 https://security.gentoo.org/glsa/201701-46

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

NONE

Base Score

NONE

Base Severity

5.9