NULL Pointer Dereference The advisory has been revoked - it doesn't affect any version of package libssh (opens in a new tab)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
Do your applications use this vulnerable package?
In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.
Test your applications- Snyk IDSNYK-DEBIAN8-LIBSSH-564986
- published9 Apr 2020
- disclosed13 Apr 2020
Introduced: 9 Apr 2020
CVE-2020-1730 (opens in a new tab)Amendment
The Debian security team deemed this advisory irrelevant for Debian:8.
NVD Description
Note: Versions mentioned in the description apply only to the upstream libssh package and not the libssh package as distributed by Debian.
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://security-tracker.debian.org/tracker/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://www.libssh.org/security/advisories/CVE-2020-1730.txt
- https://www.oracle.com/security-alerts/cpuoct2020.html
- https://security.netapp.com/advisory/ntap-20200424-0001/
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-1730
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2020-1730
- https://usn.ubuntu.com/4327-1/
- 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/