CVE-2016-8635

moderate-risk
Published 2018-08-01

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.

Do I need to act?

-
0.41% chance of exploitation
EPSS score — low exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
5
CVSS 5.3/10 Medium
NETWORK / LOW complexity

Affected Products (19)

Affected Vendors

Redhat Mozilla

References (8)

Third Party Advisory http://rhn.redhat.com/errata/RHSA-2016-2779.html
Third Party Advisory http://www.securityfocus.com/bid/94346
Issue Tracking https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-8635
Third Party Advisory https://security.gentoo.org/glsa/201701-46
Third Party Advisory http://rhn.redhat.com/errata/RHSA-2016-2779.html
Third Party Advisory http://www.securityfocus.com/bid/94346
Issue Tracking https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-8635
Third Party Advisory https://security.gentoo.org/glsa/201701-46
42
/ 100
moderate-risk
Severity 21/34 · High
Exploitability 2/34 · Minimal
Exposure 19/34 · Moderate