vulnerability
Red Hat: CVE-2020-14145: CVE-2020-14145 openssh: Observable discrepancy leading to an information leak in the algorithm negotiation (Multiple Advisories)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 4 | (AV:N/AC:M/Au:N/C:P/I:N/A:N) | Jun 29, 2020 | Nov 10, 2021 | Aug 11, 2025 |
Severity
4
CVSS
(AV:N/AC:M/Au:N/C:P/I:N/A:N)
Published
Jun 29, 2020
Added
Nov 10, 2021
Modified
Aug 11, 2025
Description
The client side in OpenSSH 5.7 through 8.4 has an Observable Discrepancy leading to an information leak in the algorithm negotiation. This allows man-in-the-middle attackers to target initial connection attempts (where no host key for the server has been cached by the client). NOTE: some reports state that 8.5 and 8.6 are also affected.
Solutions
no-fix-redhat-rpm-packageredhat-upgrade-opensshredhat-upgrade-openssh-askpassredhat-upgrade-openssh-askpass-debuginforedhat-upgrade-openssh-cavsredhat-upgrade-openssh-cavs-debuginforedhat-upgrade-openssh-clientsredhat-upgrade-openssh-clients-debuginforedhat-upgrade-openssh-debuginforedhat-upgrade-openssh-debugsourceredhat-upgrade-openssh-keycatredhat-upgrade-openssh-keycat-debuginforedhat-upgrade-openssh-ldapredhat-upgrade-openssh-ldap-debuginforedhat-upgrade-openssh-serverredhat-upgrade-openssh-server-debuginforedhat-upgrade-pam_ssh_agent_authredhat-upgrade-pam_ssh_agent_auth-debuginfo
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