VDB
DEBIAN-CVE-2015-5600
DEBIAN-CVE-2015-5600
PUBLISHED
CVSS 9.300000190734863 CRITICAL
The kbdint_next_device function in auth2-chall.c in sshd in OpenSSH through 6.9 does not properly restrict the processing of keyboard-interactive devices within a single connection, which makes it easier for remote attackers to conduct brute-force attacks or cause a denial of service (CPU consumption) via a long and duplicative list in the ssh -oKbdInteractiveDevices option, as demonstrated by a modified client that provides a different password for each pam element on this list.
Risk Scores
CVSS v4.0
9.300000190734863
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Debian:14 | openssh | 0, 0, 0 |
| Debian:11 | openssh | 0, 0, 0 |
| Debian:13 | openssh | 0, 0, 0 |
| Debian:12 | openssh | 0, 0, 0 |
Timeline
- Aug 3, 2015 CVE Published
- Apr 28, 2026 CVE Updated