CVE-2018-12384
low-risk
Published 2019-04-29
When handling a SSLv2-compatible ClientHello request, the server doesn't generate a new random value but sends an all-zero value instead. This results in full malleability of the ClientHello for SSLv2 used for TLS 1.2 in all versions prior to NSS 3.39. This does not impact TLS 1.3.
Do I need to act?
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0.62% 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 5.9/10
Medium
NETWORK
/ HIGH complexity
Affected Products (1)
Affected Vendors
References (4)
Issue Tracking
https://bugzilla.mozilla.org/show_bug.cgi?id=CVE-2018-12384
Issue Tracking
https://bugzilla.mozilla.org/show_bug.cgi?id=CVE-2018-12384
25
/ 100
low-risk
Severity
18/34 · Moderate
Exploitability
2/34 · Minimal
Exposure
5/34 · Minimal