GHSA-CFX4-R6F2-M2MC

Vulnerability from github – Published: 2022-05-14 02:58 – Updated: 2024-03-21 03:33
VLAI?
Details

** DISPUTED ** The kex_input_kexinit function in kex.c in OpenSSH 6.x and 7.x through 7.3 allows remote attackers to cause a denial of service (memory consumption) by sending many duplicate KEXINIT requests. NOTE: a third party reports that "OpenSSH upstream does not consider this as a security issue."

Severity ?
7.5 (High)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Show details on source website
To clipboard 

{
  "affected": [],
  "aliases": [
    "CVE-2016-8858"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2016-12-09T11:59:00Z",
    "severity": "HIGH"
  },
  "details": "** DISPUTED ** The kex_input_kexinit function in kex.c in OpenSSH 6.x and 7.x through 7.3 allows remote attackers to cause a denial of service (memory consumption) by sending many duplicate KEXINIT requests.  NOTE: a third party reports that \"OpenSSH upstream does not consider this as a security issue.\"",
  "id": "GHSA-cfx4-r6f2-m2mc",
  "modified": "2024-03-21T03:33:12Z",
  "published": "2022-05-14T02:58:56Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2016-8858"
    },
    {
      "type": "WEB",
      "url": "https://github.com/dag-erling/kexkill/issues/1"
    },
    {
      "type": "WEB",
      "url": "https://github.com/openssh/openssh-portable/commit/ec165c392ca54317dbe3064a8c200de6531e89ad"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1384860"
    },
    {
      "type": "WEB",
      "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf"
    },
    {
      "type": "WEB",
      "url": "https://ftp.openbsd.org/pub/OpenBSD/patches/6.0/common/013_ssh_kexinit.patch.sig"
    },
    {
      "type": "WEB",
      "url": "https://security.FreeBSD.org/advisories/FreeBSD-SA-16:33.openssh.asc"
    },
    {
      "type": "WEB",
      "url": "https://security.gentoo.org/glsa/201612-18"
    },
    {
      "type": "WEB",
      "url": "https://security.netapp.com/advisory/ntap-20180201-0001"
    },
    {
      "type": "WEB",
      "url": "http://cvsweb.openbsd.org/cgi-bin/cvsweb/src/usr.bin/ssh/kex.c.diff?r1=1.126\u0026r2=1.127\u0026f=h"
    },
    {
      "type": "WEB",
      "url": "http://cvsweb.openbsd.org/cgi-bin/cvsweb/src/usr.bin/ssh/kex.c?rev=1.127\u0026content-type=text/x-cvsweb-markup"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2016/10/19/3"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2016/10/20/1"
    },
    {
      "type": "WEB",
      "url": "http://www.securityfocus.com/bid/93776"
    },
    {
      "type": "WEB",
      "url": "http://www.securitytracker.com/id/1037057"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

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.



Detection rules are retrieved from Rulezet.