CVE-2018-12384
MEDIUMNetwork Security Services < 3.39 - Predictable PRNG Seed via SSLv2 ClientHello Handling
Title source: llmDescription
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.
References (2)
Core 2
Core References
Issue Tracking, Vendor Advisory x_refsource_confirm
https://bugzilla.mozilla.org/show_bug.cgi?id=CVE-2018-12384
Vendor Advisory x_refsource_misc
https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html
Scores
CVSS v3
5.9
EPSS
0.0062
EPSS Percentile
70.3%
Attack Vector
NETWORK
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Details
CWE
CWE-335
Status
published
Products (1)
mozilla/network_security_services
< 3.39
Published
Apr 29, 2019
Tracked Since
Feb 18, 2026