Public Date:
1622089: CVE-2018-12384 nss: ServerHello.random is all zeros when handling a v2-compatible ClientHello
A flaw was found in the way NSS responded to an SSLv2-compatible ClientHello with a ServerHello that had an all-zero random. A man-in-the-middle attacker could use this flaw in a passive replay attack.

Find out more about CVE-2018-12384 from the MITRE CVE dictionary dictionary and NIST NVD.

CVSS v3 metrics

CVSS3 Base Score 4.8
CVSS3 Base Metrics CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
Attack Vector Network
Attack Complexity High
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Low
Integrity Impact Low
Availability Impact None

Red Hat Security Errata

Platform Errata Release Date
Red Hat Enterprise Linux 6 (nss) RHSA-2018:2898 2018-10-09
Red Hat Enterprise Linux 7 (nss) RHSA-2018:2768 2018-09-25

Affected Packages State

Platform Package State
Red Hat Enterprise Linux 8 nss Not affected
Red Hat Enterprise Linux 5 nss Not affected
Unless explicitly stated as not affected, all previous versions of packages in any minor update stream of a product listed here should be assumed vulnerable, although may not have been subject to full analysis.


Red Hat would like to thank the Mozilla project for reporting this issue.

External References

Last Modified