CVE-2016-8858

Опубликовано: 09 дек. 2016

Источник: nvd

CVSS3: 7.5

CVSS2: 7.8

EPSS Средний

Описание

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."

Ссылки

http://cvsweb.openbsd.org/cgi-bin/cvsweb/src/usr.bin/ssh/kex.c.diff?r1=1.126&r2=1.127&f=h
Issue Tracking
Vendor Advisory
http://cvsweb.openbsd.org/cgi-bin/cvsweb/src/usr.bin/ssh/kex.c?rev=1.127&content-type=text/x-cvsweb-markup
Issue Tracking
Vendor Advisory
http://www.openwall.com/lists/oss-security/2016/10/19/3
Mailing List
Third Party Advisory
http://www.openwall.com/lists/oss-security/2016/10/20/1
Mailing List
Third Party Advisory
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://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf
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
Issue Tracking
Patch
Third Party Advisory
https://security.FreeBSD.org/advisories/FreeBSD-SA-16:33.openssh.asc
Third Party Advisory
https://security.gentoo.org/glsa/201612-18
Third Party Advisory
https://security.netapp.com/advisory/ntap-20180201-0001/
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
Issue Tracking
Vendor Advisory
http://cvsweb.openbsd.org/cgi-bin/cvsweb/src/usr.bin/ssh/kex.c?rev=1.127&content-type=text/x-cvsweb-markup
Issue Tracking
Vendor Advisory
http://www.openwall.com/lists/oss-security/2016/10/19/3
Mailing List
Third Party Advisory
http://www.openwall.com/lists/oss-security/2016/10/20/1
Mailing List
Third Party Advisory
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

Уязвимые конфигурации

Конфигурация 1

Одно из

cpe:2.3:a:openbsd:openssh:6.8:*:*:*:*:*:*:*

cpe:2.3:a:openbsd:openssh:6.9:*:*:*:*:*:*:*

cpe:2.3:a:openbsd:openssh:7.0:*:*:*:*:*:*:*

cpe:2.3:a:openbsd:openssh:7.1:*:*:*:*:*:*:*

cpe:2.3:a:openbsd:openssh:7.2:*:*:*:*:*:*:*

cpe:2.3:a:openbsd:openssh:7.3:*:*:*:*:*:*:*

EPSS

Процентиль: 96%

0.27135

Средний

7.5 High

CVSS3

7.8 High

CVSS2

Дефекты

CWE-399

Связанные уязвимости

CVE-2016-8858

CVSS3: 7.5

ubuntu

около 9 лет назад

CVE-2016-8858

CVSS3: 5.8

redhat

больше 9 лет назад

CVE-2016-8858

CVSS3: 7.5

debian

около 9 лет назад

The kex_input_kexinit function in kex.c in OpenSSH 6.x and 7.x through ...

GHSA-cfx4-r6f2-m2mc

CVSS3: 7.5

github

больше 3 лет назад

** 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."

BDU:2016-02352

fstec

около 9 лет назад

Уязвимость средства криптографической защиты OpenSSH, позволяющая нарушителю вызвать отказ в обслуживании

EPSS

Процентиль: 96%

0.27135

Средний

7.5 High

CVSS3

7.8 High

CVSS2

Дефекты

CWE-399