Vulnerability in Mozilla Network_security_services
CVE-2018-12384
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…
EPSS: 0.015 (71.4th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N.
Affected products
- Mozilla Network_security_services
- Nss Network Security Services (Nss) — versions All versions prior to NSS 3.39
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security@mozilla.org (x_refsource_CONFIRM, Issue Tracking, Vendor Advisory)
- security@mozilla.org (x_refsource_MISC)
Frequently asked questions
- What is CVE-2018-12384?
- CVE-2018-12384 is a medium-severity vulnerability in Mozilla Network_security_services, classified under Incorrect Usage of Seeds in Pseudo-Random Number Generator (PRNG). CVSS score: 5.9/10. Published 2019-04-29.
- How severe is CVE-2018-12384?
- Medium severity. CVSS v3 base score is 5.9 out of 10.
- Is CVE-2018-12384 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.