vulnerability
Red Hat: CVE-2020-1730: CVE-2020-1730 libssh: denial of service when handling AES-CTR (or DES) ciphers (Multiple Advisories)
Severity | CVSS | Published | Added | Modified |
---|---|---|---|---|
5 | (AV:N/AC:L/Au:N/C:N/I:N/A:P) | Apr 13, 2020 | Nov 5, 2020 | Dec 15, 2023 |
Severity
5
CVSS
(AV:N/AC:L/Au:N/C:N/I:N/A:P)
Published
Apr 13, 2020
Added
Nov 5, 2020
Modified
Dec 15, 2023
Description
A flaw was found in libssh versions before 0.8.9 and before 0.9.4 in the way it handled AES-CTR (or DES ciphers if enabled) ciphers. The server or client could crash when the connection hasn't been fully initialized and the system tries to cleanup the ciphers when closing the connection. The biggest threat from this vulnerability is system availability.
Solution(s)
redhat-upgrade-libsshredhat-upgrade-libssh-configredhat-upgrade-libssh-debuginforedhat-upgrade-libssh-debugsourceredhat-upgrade-libssh-devel
References

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