CVE-2018-12384

NameCVE-2018-12384
DescriptionWhen 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.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more)
NVD severitymedium
Debian Bugs908332

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
nss (PTS)stretch (security), stretch2:3.26.2-1.1+deb9u1vulnerable
buster, buster (security)2:3.42.1-1+deb10u3fixed
bullseye, sid2:3.55-1fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
nsssource(unstable)2:3.39-1low908332

Notes

[stretch] - nss <postponed> (Minor issue, can be fixed along in future DSA)
[jessie] - nss <postponed> (Minor issue, can be fixed along in future DSA)
https://hg.mozilla.org/projects/nss/rev/2ed9f6afd84e (NSS_3_39_BRANCH)
https://hg.mozilla.org/projects/nss/rev/46f9a1f40c3d (NSS_3_36_BRANCH)
https://bugzilla.mozilla.org/show_bug.cgi?id=1483128
https://bugzilla.redhat.com/show_bug.cgi?id=1622089

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