CVE-2018-12384
5.9
MEDIUM
CVSS 3.1
EPSS 0.62%
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.
How to fix CVE-2018-12384
To remediate CVE-2018-12384, upgrade the affected package to a fixed version below.
- Alpine/nss—upgrade to 3.39-r0 or later
- —upgrade to 2:3.39-1 or later
Is CVE-2018-12384 being exploited?
Low — EPSS is 0.6%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 3.39-r0
- from 0, < 2:3.39-1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.9 | CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N |