Description
sshd in OpenSSH before 7.4 allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via an out-of-sequence NEWKEYS message, as demonstrated by Honggfuzz, related to kex.c and packet.c.
Exploits (1)
References (11)
Core 11
Core References
Release Notes, Vendor Advisory x_refsource_misc
https://www.openssh.com/releasenotes.html
Third Party Advisory x_refsource_confirm
https://security.netapp.com/advisory/ntap-20180423-0003/
Mailing List, Third Party Advisory mailing-list
x_refsource_mlist
https://lists.debian.org/debian-lts-announce/2018/01/msg00031.html
Patch, Third Party Advisory x_refsource_misc
https://anongit.mindrot.org/openssh.git/commit/?id=28652bca29046f62c7045e933e6b931de1d16737
Third Party Advisory vendor-advisory
x_refsource_ubuntu
https://usn.ubuntu.com/3809-1/
Third Party Advisory, VDB Entry vdb-entry
x_refsource_bid
http://www.securityfocus.com/bid/102780
Mailing List, Third Party Advisory mailing-list
x_refsource_mlist
https://lists.debian.org/debian-lts-announce/2018/09/msg00010.html
Patch, Third Party Advisory x_refsource_misc
http://blog.swiecki.net/2018/01/fuzzing-tcp-servers.html
Vendor Advisory x_refsource_confirm
https://kc.mcafee.com/corporate/index?page=content&id=SB10284
Vendor Advisory x_refsource_confirm
https://support.f5.com/csp/article/K32485746?utm_source=f5support&%3Butm_medium=RSS
Vendor Advisory x_refsource_confirm
https://cert-portal.siemens.com/productcert/pdf/ssa-676336.pdf
Scores
CVSS v3
7.5
EPSS
0.0312
EPSS Percentile
86.9%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
yes
Technical Impact
partial
Details
CWE
CWE-476
Status
published
Products (15)
canonical/ubuntu_linux
14.04
canonical/ubuntu_linux
16.04
canonical/ubuntu_linux
18.04
debian/debian_linux
7.0
debian/debian_linux
8.0
netapp/cloud_backup
netapp/clustered_data_ontap
netapp/data_ontap
netapp/data_ontap_edge
netapp/oncommand_unified_manager
9.4
... and 5 more
Published
Jan 21, 2018
Tracked Since
Feb 18, 2026