7.8

CVE-2016-8858

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."
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Openbsd ≫ Openssh Version 6.8
Openbsd ≫ Openssh Version 6.9
Openbsd ≫ Openssh Version 7.0
Openbsd ≫ Openssh Version 7.1
Openbsd ≫ Openssh Version 7.2
Openbsd ≫ Openssh Version 7.3
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 29.46% 0.979
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
NIST 7.5 3.9 3.6
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NIST 7.8 10 6.9
AV:N/AC:L/Au:N/C:N/I:N/A:C
CISA-ADP 7.5 3.9 3.6
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE-400 Uncontrolled Resource Consumption

The product does not properly control the allocation and maintenance of a limited resource.

https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf
https://security.gentoo.org/glsa/201612-18
Third Party Advisory
http://cvsweb.openbsd.org/cgi-bin/cvsweb/src/usr.bin/ssh/kex.c.diff?r1=1.126&r2=1.127&f=h
Vendor Advisory
Issue Tracking
http://cvsweb.openbsd.org/cgi-bin/cvsweb/src/usr.bin/ssh/kex.c?rev=1.127&content-type=text/x-cvsweb-markup
Vendor Advisory
Issue Tracking
http://www.openwall.com/lists/oss-security/2016/10/19/3
Third Party Advisory
Mailing List
http://www.openwall.com/lists/oss-security/2016/10/20/1
Third Party Advisory
Mailing List
http://www.securityfocus.com/bid/93776
Third Party Advisory
VDB Entry
http://www.securitytracker.com/id/1037057
Third Party Advisory
VDB Entry
https://bugzilla.redhat.com/show_bug.cgi?id=1384860
Issue Tracking
https://ftp.openbsd.org/pub/OpenBSD/patches/6.0/common/013_ssh_kexinit.patch.sig
Patch
Vendor Advisory
https://github.com/openssh/openssh-portable/commit/ec165c392ca54317dbe3064a8c200de6531e89ad
Patch
Third Party Advisory
Issue Tracking
https://security.FreeBSD.org/advisories/FreeBSD-SA-16:33.openssh.asc
Third Party Advisory
https://security.netapp.com/advisory/ntap-20180201-0001/
Third Party Advisory