DEBIAN-CVE-2015-5600
Record from OSV · Published August 3, 2015
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.
Fixed versions
Upgrade to a fixed version or later. Language registries are listed first, then Linux distributions, then vendor products.
| Package | Ecosystem | Fixed in |
|---|---|---|
| openssh | Debian:14 | 1:6.9p1-1 |
| openssh | Debian:13 | 1:6.9p1-1 |
| openssh | Debian:12 | 1:6.9p1-1 |
Risk scores
Affected products
| Vendor | Product | Versions |
|---|---|---|
| Debian:14 | openssh | 0 |
| Debian:13 | openssh | 0 |
| Debian:12 | openssh | 0 |
Timeline
- Aug 3, 2015 CVE Published
- Sep 9, 2026 CVE Updated
Query this with the API
The same record, from the CLI:
vulnetix vdb vuln DEBIAN-CVE-2015-5600
vulnetix vdb fixes DEBIAN-CVE-2015-5600Or with curl, using the org id and key from your account page:
curl -s -H "Authorization: ApiKey ${VULNETIX_ORG_ID}:${VULNETIX_API_KEY}" \
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