Information Exposure Affecting libssh package, versions <0.6.3-4+deb8u2


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.33% (71st percentile)

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  • Snyk IDSNYK-DEBIAN8-LIBSSH-293637
  • published13 Apr 2016
  • disclosed13 Apr 2016

Introduced: 13 Apr 2016

CVE-2016-0739  (opens in a new tab)
CWE-200  (opens in a new tab)

How to fix?

Upgrade Debian:8 libssh to version 0.6.3-4+deb8u2 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libssh package and not the libssh package as distributed by Debian. See How to fix? for Debian:8 relevant fixed versions and status.

libssh before 0.7.3 improperly truncates ephemeral secrets generated for the (1) diffie-hellman-group1 and (2) diffie-hellman-group14 key exchange methods to 128 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."

CVSS Scores

version 3.1