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…

medium5.9CVSS 3.0

AVNACHPRNUINSUCHINAN

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

11 ranges

Vendor	Product	Version range	Fixed in
debian	nss	< nss 2:3.39-1 (bookworm)	nss 2:3.39-1 (bookworm)
fasterxml	jackson-databind	>= 0 < 2.4.2-3ubuntu0.1~esm2	2.4.2-3ubuntu0.1~esm2
mozilla	network_security_services	< 3.39	3.39
mozilla	nss	>= 0 < 2:3.39-1	2:3.39-1
mozilla	nss	>= 0 < 2:3.39-1	2:3.39-1
mozilla	nss	>= 0 < 2:3.39-1	2:3.39-1
mozilla	nss	>= 0 < 2:3.39-1	2:3.39-1
mozilla	nss	>= 0 < 2:3.28.4-0ubuntu0.14.04.4	2:3.28.4-0ubuntu0.14.04.4
mozilla	nss	>= 0 < 2:3.28.4-0ubuntu0.16.04.4	2:3.28.4-0ubuntu0.16.04.4
mozilla	nss	>= 0 < 2:3.35-2ubuntu2.1	2:3.35-2ubuntu2.1
nss	network_security_services	—	—

CVSS provenance

nvdv3.05.9MEDIUMCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

osv9.8CRITICAL