Vulnerability in Mozilla Network Security Services
CVE-2016-8635
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.
EPSS exploit prediction
EPSS: 0.020 (80.3th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 80th percentile — 80.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.020 · newest: 0.020 · change: -0.000
Affected products
- Mozilla Network Security Services
- Mozilla Nss — versions 3.21.x
- Red Hat Enterprise Linux Desktop — versions 5.0, 6.0, 7.0
- Red Hat Enterprise Linux Server — versions 5.0, 6.0, 7.0
- Red Hat Enterprise Linux Server Aus — versions 7.3, 7.4, 7.6
- Red Hat Enterprise Linux Server Eus — versions 7.3, 7.4, 7.5
- Red Hat Enterprise Linux Server Tus — versions 7.3, 7.6
- Red Hat Enterprise Linux Workstation — versions 5.0, 6.0, 7.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- bugzilla.redhat.com/show_bug.cgi (Third Party Advisory, Issue Tracking)
- rhn.redhat.com/errata/RHSA-2016-2779.html (vendor-advisory, Third Party Advisory)
- security.gentoo.org/glsa/201701-46 (vendor-advisory, Third Party Advisory)
- www.securityfocus.com/bid/94346 (VDB Entry, Third Party Advisory, vdb-entry)
Frequently asked questions
- What is CVE-2016-8635?
- CVE-2016-8635 is a medium-severity vulnerability in Mozilla Network Security Services, classified under CWE-358. CVSS score: 5.3/10. Published 2018-08-01.
- How severe is CVE-2016-8635?
- Medium severity. CVSS v3 base score is 5.3 out of 10.
- Is CVE-2016-8635 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.