CVE-2016-0739

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Source
https://cve.org/CVERecord?id=CVE-2016-0739
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2016-0739.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2016-0739
Downstream
Related
Published
2016-04-13T17:59:08.413Z
Modified
2026-07-08T05:45:45.282161782Z
Severity
  • 5.9 (Medium) CVSS_V3 - CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N CVSS Calculator
Summary
[none]
Details

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."

Database specific 
{
    "unresolved_ranges": [
        {
            "cpes": [
                "cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:lts:*:*:*",
                "cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*",
                "cpe:2.3:o:canonical:ubuntu_linux:15.10:*:*:*:*:*:*:*"
            ],
            "source": "CPE_STRING",
            "vendor_product": "canonical:ubuntu_linux",
            "extracted_events": [
                {
                    "introduced": "12.04"
                },
                {
                    "last_affected": "12.04"
                },
                {
                    "introduced": "14.04"
                },
                {
                    "last_affected": "14.04"
                },
                {
                    "introduced": "15.10"
                },
                {
                    "last_affected": "15.10"
                }
            ]
        },
        {
            "extracted_events": [
                {
                    "introduced": "7.0"
                },
                {
                    "last_affected": "7.0"
                },
                {
                    "introduced": "8.0"
                },
                {
                    "last_affected": "8.0"
                }
            ],
            "source": "CPE_STRING",
            "vendor_product": "debian:debian_linux",
            "cpes": [
                "cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*",
                "cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*"
            ]
        },
        {
            "extracted_events": [
                {
                    "introduced": "22"
                },
                {
                    "last_affected": "22"
                },
                {
                    "introduced": "23"
                },
                {
                    "last_affected": "23"
                }
            ],
            "source": "CPE_STRING",
            "vendor_product": "fedoraproject:fedora",
            "cpes": [
                "cpe:2.3:o:fedoraproject:fedora:22:*:*:*:*:*:*:*",
                "cpe:2.3:o:fedoraproject:fedora:23:*:*:*:*:*:*:*"
            ]
        },
        {
            "extracted_events": [
                {
                    "introduced": "7.0"
                },
                {
                    "last_affected": "7.0"
                }
            ],
            "source": "CPE_STRING",
            "vendor_product": "redhat:enterprise_linux",
            "cpes": [
                "cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*"
            ]
        }
    ]
}
References

Affected packages

Git / gitlab.com/libssh/libssh-mirror

Affected ranges

Type
GIT
Repo
https://gitlab.com/libssh/libssh-mirror
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
186e7b5ca47450d10b7ed8996de2b640342599bf
Database specific 
{
    "source": "CPE_RANGE",
    "cpe": "cpe:2.3:a:libssh:libssh:*:*:*:*:*:*:*:*",
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "last_affected": "0.7.2"
        }
    ]
}

Affected versions

libssh-0.*
libssh-0.7.0
libssh-0.7.1
libssh-0.7.2
Other
release-0-3-0

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2016-0739.json"