vulnerability
Ubuntu: USN-7292-1 (CVE-2021-36369): Dropbear vulnerabilities
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 8 | (AV:N/AC:L/Au:N/C:N/I:C/A:N) | Oct 12, 2022 | Nov 19, 2024 | Aug 18, 2025 |
Severity
8
CVSS
(AV:N/AC:L/Au:N/C:N/I:C/A:N)
Published
Oct 12, 2022
Added
Nov 19, 2024
Modified
Aug 18, 2025
Description
An issue was discovered in Dropbear through 2020.81. Due to a non-RFC-compliant check of the available authentication methods in the client-side SSH code, it is possible for an SSH server to change the login process in its favor. This attack can bypass additional security measures such as FIDO2 tokens or SSH-Askpass. Thus, it allows an attacker to abuse a forwarded agent for logging on to another server unnoticed.
Solutions
ubuntu-pro-upgrade-dropbearubuntu-pro-upgrade-dropbear-bin
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