NULL Pointer Dereference Affecting libssh package, versions <0:0.9.4-2.el8
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Test your applications- Snyk ID SNYK-ORACLE8-LIBSSH-2569219
- published 10 Apr 2022
- disclosed 13 Apr 2020
Introduced: 13 Apr 2020
CVE-2020-1730 Open this link in a new tabHow to fix?
Upgrade Oracle:8
libssh
to version 0:0.9.4-2.el8 or higher.
This issue was patched in ELSA-2020-4545
.
NVD Description
Note: Versions mentioned in the description apply only to the upstream libssh
package and not the libssh
package as distributed by Oracle
.
See How to fix?
for Oracle:8
relevant fixed versions and status.
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.
References
- https://linux.oracle.com/cve/CVE-2020-1730.html
- https://linux.oracle.com/errata/ELSA-2020-4545.html
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-1730
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/2A7BIFKUYIYKTY7FX4BEWVC2OHS5DPOU/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VLSWHBQ3EPKGTGLQNH554Z746BJ3C554/
- https://security.netapp.com/advisory/ntap-20200424-0001/
- https://usn.ubuntu.com/4327-1/
- https://www.libssh.org/security/advisories/CVE-2020-1730.txt
- https://www.oracle.com/security-alerts/cpuoct2020.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2A7BIFKUYIYKTY7FX4BEWVC2OHS5DPOU/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VLSWHBQ3EPKGTGLQNH554Z746BJ3C554/