CVE-2018-12384

Severity

43%

Complexity

86%

Confidentiality

48%

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.

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.

CVSS 3.0 Base Score 5.9. CVSS Attack Vector: network. CVSS Attack Complexity: high. CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N).

CVSS 2.0 Base Score 4.3. CVSS Attack Vector: network. CVSS Attack Complexity: medium. CVSS Vector: (AV:N/AC:M/Au:N/C:P/I:N/A:N).

Overview

First reported 5 years ago

2019-04-29 15:29:00

Last updated 5 years ago

2019-10-16 18:15:00

Affected Software

Mozilla Network Security Services

References

https://bugzilla.mozilla.org/show_bug.cgi?id=CVE-2018-12384

Issue Tracking, Vendor Advisory

https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html

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