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

published April 29, 2019

CVSS
—
EPSS
1%
Percentile
73.8
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.01484 · 73.8th percentile
Published
2019-04-29T14:22Z
EPSS history
Timeline
  • 29 APR 14:22Z
    When handling a SSLv2-compatible ClientHello request, the server doesn't generate a new random value but sends an all-zero value instead
    cvelistv5