CVE-2016-8858

Published: 9 December 2016

** 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."

Priority

Negligible

CVSS 3 base score: 7.5

Status

Notes

DoS is limited to attacker's connection only, and openssh
upstream does not consider this to be a security issue
We do not consider this to be a security issue either, marking
as ignored

References

• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-8858
• http://seclists.org/oss-sec/2016/q4/185
• NVD
• Launchpad
• Debian

Bugs

• https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=848717