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.
Metrics
CVSS 3.1 7.5/10
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| n/a | n/a | n/a |
References
- http://blog.swiecki.net/2018/01/fuzzing-tcp-servers.htmlPatch, Third Party Advisory
- http://www.securityfocus.com/bid/102780Third Party Advisory, VDB Entry
- https://anongit.mindrot.org/openssh.git/commit/?id=28652bca29046f62c7045e933e6b931de1d16737Patch, Third Party Advisory
- https://cert-portal.siemens.com/productcert/pdf/ssa-676336.pdf
- https://kc.mcafee.com/corporate/index?page=content&id=SB10284
- https://lists.debian.org/debian-lts-announce/2018/01/msg00031.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2018/09/msg00010.htmlMailing List, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20180423-0003/Third Party Advisory
- https://support.f5.com/csp/article/K32485746?utm_source=f5support&%3Butm_medium=RSS
- https://usn.ubuntu.com/3809-1/Third Party Advisory
- https://www.openssh.com/releasenotes.htmlRelease Notes, Vendor Advisory
- http://blog.swiecki.net/2018/01/fuzzing-tcp-servers.htmlPatch, Third Party Advisory
- http://www.securityfocus.com/bid/102780Third Party Advisory, VDB Entry
- https://anongit.mindrot.org/openssh.git/commit/?id=28652bca29046f62c7045e933e6b931de1d16737Patch, Third Party Advisory
- https://cert-portal.siemens.com/productcert/pdf/ssa-676336.pdf
- https://kc.mcafee.com/corporate/index?page=content&id=SB10284
- https://lists.debian.org/debian-lts-announce/2018/01/msg00031.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2018/09/msg00010.htmlMailing List, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20180423-0003/Third Party Advisory
- https://support.f5.com/csp/article/K32485746?utm_source=f5support&%3Butm_medium=RSS
- https://usn.ubuntu.com/3809-1/Third Party Advisory
- https://www.openssh.com/releasenotes.htmlRelease Notes, Vendor Advisory
Timeline
- Published
- Jan 21, 2018
- Last modified
- Jun 17, 2026
- NVD status
- Modified