Vulnerability Description
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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Mozilla | Network Security Services | < 3.39 |
Related Weaknesses (CWE)
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=CVE-2018-12384Issue TrackingVendor Advisory
- https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html
- https://bugzilla.mozilla.org/show_bug.cgi?id=CVE-2018-12384Issue TrackingVendor Advisory
- https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html
FAQ
What is CVE-2018-12384?
CVE-2018-12384 is a vulnerability with a CVSS score of 5.9 (MEDIUM). 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...
How severe is CVE-2018-12384?
CVE-2018-12384 has been rated MEDIUM with a CVSS base score of 5.9/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2018-12384?
Check the references section above for vendor advisories and patch information. Affected products include: Mozilla Network Security Services.