CVEvulnerability

CVE-2020-1730

5.3 MEDIUM Published 2020-04-13 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2020-04-13
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
5.3 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
CVSS 3.1 ([email protected])
5.3 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
CVSS 2.0 ([email protected])
5.0 MEDIUM — AV:N/AC:L/Au:N/C:N/I:N/A:P
Weaknesses
CWE-476

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.

Affected configurations

• libssh libssh (>= 0.8.0 < 0.8.9) • libssh libssh (>= 0.9.0 < 0.9.4) • netapp cloud backup • canonical ubuntu linux 18.04 • canonical ubuntu linux 19.10 • fedoraproject fedora 31 • fedoraproject fedora 32 • redhat enterprise linux 8.0 • oracle mysql workbench (<= 8.0.21)

Related

Weakness · CWE (1)

  • CWE-476 NULL Pointer Dereference weakness

References