CVE-2016-0701

NameCVE-2016-0701
DescriptionThe DH_check_pub_key function in crypto/dh/dh_check.c in OpenSSL 1.0.2 before 1.0.2f does not ensure that prime numbers are appropriate for Diffie-Hellman (DH) key exchange, which makes it easier for remote attackers to discover a private DH exponent by making multiple handshakes with a peer that chose an inappropriate number, as demonstrated by a number in an X9.42 file.
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 severitylow (attack range: remote)

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
openssl (PTS)jessie1.0.1t-1+deb8u8fixed
jessie (security)1.0.1t-1+deb8u9fixed
stretch (security), stretch1.1.0f-3+deb9u2fixed
buster1.1.0h-4fixed
sid1.1.1-1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
opensslsource(unstable)1.0.2f-2low
opensslsourcejessie(not affected)
opensslsourcesqueeze(not affected)
opensslsourcewheezy(not affected)

Notes

[jessie] - openssl <not-affected> (Only affects 1.0.2)
[wheezy] - openssl <not-affected> (Only affects 1.0.2)
[squeeze] - openssl <not-affected> (Only affects 1.0.2)

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