CVE-2016-0739 — Sensitive Information Exposure in Libssh
CWE-200 — Sensitive Information ExposureCWE-704 — Incorrect Type Conversion or Cast13 documents8 sources
Severity
5.9MEDIUMNVD
OSV7.5
EPSS
4.3%
top 11.09%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
Timeline
PublishedApr 13
Latest updateMay 17
Description
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 vector
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:NExploitability: 2.2 | Impact: 3.6
Affected Packages3 packages
Also affects: Debian Linux 7.0, 8.0, Fedora 22, 23, Ubuntu Linux 12.04, 14.04, 15.10, Enterprise Linux 7.0
🔴Vulnerability Details
4📋Vendor Advisories
3💬Community
5Bugzilla▶
CVE-2016-0739 libssh: bits/bytes confusion resulting in truncated Difffie-Hellman secret length [epel-all]↗2016-02-23
Bugzilla▶
CVE-2016-0739 libssh: bits/bytes confusion resulting in truncated Difffie-Hellman secret length [fedora-all]↗2016-02-23
Bugzilla▶
CVE-2016-0739 libssh: bits/bytes confusion resulting in truncated Difffie-Hellman secret length [fedora-all]↗2016-02-23
Bugzilla▶
CVE-2016-0739 libssh: bits/bytes confusion resulting in truncated Difffie-Hellman secret length [epel-all]↗2016-02-23
Bugzilla▶
CVE-2016-0739 libssh: bits/bytes confusion resulting in truncated Difffie-Hellman secret length↗2016-02-09