Vulnerability-Lookup

GHSA-V7Q8-7G48-2272

Vulnerability from github – Published: 2022-05-17 00:16 – Updated: 2025-04-12 12:58

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."

Severity

5.9 (Medium)


                  
                    CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

Show details on source website

JSON

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{
  "affected": [],
  "aliases": [
    "CVE-2016-0739"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-200"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2016-04-13T17:59:00Z",
    "severity": "MODERATE"
  },
  "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.\"",
  "id": "GHSA-v7q8-7g48-2272",
  "modified": "2025-04-12T12:58:38Z",
  "published": "2022-05-17T00:16:49Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2016-0739"
    },
    {
      "type": "WEB",
      "url": "https://puppet.com/security/cve/CVE-2016-0739"
    },
    {
      "type": "WEB",
      "url": "https://security.gentoo.org/glsa/201606-12"
    },
    {
      "type": "WEB",
      "url": "https://www.libssh.org/2016/02/23/libssh-0-7-3-security-and-bugfix-release"
    },
    {
      "type": "WEB",
      "url": "https://www.libssh.org/security/advisories/CVE-2016-0739.txt"
    },
    {
      "type": "WEB",
      "url": "http://lists.fedoraproject.org/pipermail/package-announce/2016-February/178058.html"
    },
    {
      "type": "WEB",
      "url": "http://lists.fedoraproject.org/pipermail/package-announce/2016-March/178822.html"
    },
    {
      "type": "WEB",
      "url": "http://lists.opensuse.org/opensuse-updates/2016-03/msg00111.html"
    },
    {
      "type": "WEB",
      "url": "http://rhn.redhat.com/errata/RHSA-2016-0566.html"
    },
    {
      "type": "WEB",
      "url": "http://www.debian.org/security/2016/dsa-3488"
    },
    {
      "type": "WEB",
      "url": "http://www.ubuntu.com/usn/USN-2912-1"
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  "severity": [
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      "score": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2016-0739 (GCVE-0-2016-0739)

Vulnerability from cvelistv5 – Published: 2016-04-13 17:00 – Updated: 2024-08-05 22:30

Summary

Severity

No CVSS data available.

CWE

Assigner

redhat CNA under the redhat root

CNA scorecard B 82/100 over 1131 records in the last 180 days details

References

10 references

URL	Tags
http://lists.fedoraproject.org/pipermail/package-…	vendor-advisoryx_refsource_FEDORA
http://www.ubuntu.com/usn/USN-2912-1	vendor-advisoryx_refsource_UBUNTU
https://www.libssh.org/security/advisories/CVE-20…	x_refsource_CONFIRM
https://puppet.com/security/cve/CVE-2016-0739	x_refsource_CONFIRM
http://lists.fedoraproject.org/pipermail/package-…	vendor-advisoryx_refsource_FEDORA
https://security.gentoo.org/glsa/201606-12	vendor-advisoryx_refsource_GENTOO
http://www.debian.org/security/2016/dsa-3488	vendor-advisoryx_refsource_DEBIAN
http://rhn.redhat.com/errata/RHSA-2016-0566.html	vendor-advisoryx_refsource_REDHAT
https://www.libssh.org/2016/02/23/libssh-0-7-3-se…	x_refsource_CONFIRM
http://lists.opensuse.org/opensuse-updates/2016-0…	vendor-advisoryx_refsource_SUSE

Date Public

2016-02-23 00:00

Show details on NVD website

JSON

To clipboard

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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Vulnerability timeline

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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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