Vulnerability Monitor

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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 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.

Published

2019-04-29T15:29:00.247

Last Modified

2024-11-21T03:45:06.593

Status

Modified

Source

[email protected]

Severity

CVSSv3.0: 5.9 (MEDIUM)

CVSSv2 Vector

AV:N/AC:M/Au:N/C:P/I:N/A:N

Access Vector: NETWORK
Access Complexity: MEDIUM
Authentication: NONE
Confidentiality Impact: PARTIAL
Integrity Impact: NONE
Availability Impact: NONE

Exploitability Score

8.6

Impact Score

2.9

Weaknesses

Type: Primary
CWE-335

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	mozilla	network_security_services	< 3.39	Yes

References

https://bugzilla.mozilla.org/show_bug.cgi?id=CVE-2018-12384 Issue Tracking, Vendor Advisory ([email protected])
https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html ([email protected])
https://bugzilla.mozilla.org/show_bug.cgi?id=CVE-2018-12384 Issue Tracking, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html (af854a3a-2127-422b-91ae-364da2661108)