CVE-2016-8635

Name: CVE-2016-8635
Creator: NVD / NIST
Published: 2018-08-01T13:29:00.217+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 2.02%

Last modified Jun 17, 2026

CVE-2016-8635 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 2.02% chance of exploitation in the next 30 days.

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.

Metrics

EPSS Probability

2.02%

78.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Mozilla	Network Security Services	>= 3.21, <= 3.21.4
Redhat	Enterprise Linux Desktop	5.0
Redhat	Enterprise Linux Desktop	6.0
Redhat	Enterprise Linux Desktop	7.0
Redhat	Enterprise Linux Server	5.0
Redhat	Enterprise Linux Server	6.0
Redhat	Enterprise Linux Server	7.0
Redhat	Enterprise Linux Server Aus	7.3
Redhat	Enterprise Linux Server Aus	7.4
Redhat	Enterprise Linux Server Aus	7.6
Redhat	Enterprise Linux Server Eus	7.3
Redhat	Enterprise Linux Server Eus	7.4
Redhat	Enterprise Linux Server Eus	7.5
Redhat	Enterprise Linux Server Eus	7.6
Redhat	Enterprise Linux Server Tus	7.3
Redhat	Enterprise Linux Server Tus	7.6
Redhat	Enterprise Linux Workstation	5.0
Redhat	Enterprise Linux Workstation	6.0
Redhat	Enterprise Linux Workstation	7.0

References

http://rhn.redhat.com/errata/RHSA-2016-2779.htmlThird Party Advisory
http://www.securityfocus.com/bid/94346Third Party Advisory, VDB Entry
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-8635Issue Tracking, Third Party Advisory
https://security.gentoo.org/glsa/201701-46Third Party Advisory
http://rhn.redhat.com/errata/RHSA-2016-2779.htmlThird Party Advisory
http://www.securityfocus.com/bid/94346Third Party Advisory, VDB Entry
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-8635Issue Tracking, Third Party Advisory
https://security.gentoo.org/glsa/201701-46Third Party Advisory

Timeline

Published: Aug 1, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2016-8635?

How severe is CVE-2016-8635?

Severity scoring for CVE-2016-8635 is pending analysis. The EPSS model estimates a 2.02% probability of exploitation in the next 30 days.

How do I fix CVE-2016-8635?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2016-8635?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST