CVEvulnerability

CVE-2018-12384

5.9 MEDIUM Published 2019-04-29 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2019-04-29
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.0 ([email protected])
5.9 MEDIUM — CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
CVSS 2.0 ([email protected])
4.3 MEDIUM — AV:N/AC:M/Au:N/C:P/I:N/A:N
Weaknesses
CWE-335

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.

Affected configurations

• mozilla network security services (< 3.39)

Related

Weakness · CWE (1)

  • CWE-335 Incorrect Usage of Seeds in Pseudo-Random Number Generator (PRNG) weakness

References