CVE-2016-0787

Summary

The diffie_hellman_sha256 function in kex.c in libssh2 before 1.7.0 improperly truncates secrets to 128 or 256 bits, which makes it easier for man-in-the-middle attackers to decrypt or intercept SSH sessions via unspecified vectors, aka a "bits/bytes confusion bug."

Affected Software

Weaknesses

• n/a

ADP Enrichment

CVE Program Container

Additional References

• http://lists.fedoraproject.org/pipermail/package-announce/2016-February/177980.html
• https://kc.mcafee.com/corporate/index?page=content&id=SB10156
• http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html
• https://www.libssh2.org/CVE-2016-0787.patch
• https://www.libssh2.org/adv_20160223.html
• https://puppet.com/security/cve/CVE-2016-0787
• http://lists.fedoraproject.org/pipermail/package-announce/2016-March/178573.html
• https://security.gentoo.org/glsa/201606-12
• http://lists.opensuse.org/opensuse-updates/2016-03/msg00008.html
• https://bto.bluecoat.com/security-advisory/sa120
• http://www.debian.org/security/2016/dsa-3487
• http://www.securityfocus.com/bid/82514

References

• http://lists.fedoraproject.org/pipermail/package-announce/2016-February/177980.html
• https://kc.mcafee.com/corporate/index?page=content&id=SB10156
• http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html
• https://www.libssh2.org/CVE-2016-0787.patch
• https://www.libssh2.org/adv_20160223.html
• https://puppet.com/security/cve/CVE-2016-0787
• http://lists.fedoraproject.org/pipermail/package-announce/2016-March/178573.html
• https://security.gentoo.org/glsa/201606-12
• http://lists.opensuse.org/opensuse-updates/2016-03/msg00008.html
• https://bto.bluecoat.com/security-advisory/sa120
• http://www.debian.org/security/2016/dsa-3487
• http://www.securityfocus.com/bid/82514

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