OpenSSH < 5.9 Multiple DoS
medium Nessus Network Monitor Plugin ID 701162
Synopsis
The remote SSH server may be affected by multiple denial of service vulnerabilities.Description
The version of OpenSSH running on the remote host is prior to version 5.9. Such versions are affected by multiple denial of service vulnerabilities:- A denial of service vulnerability exists in the gss-serv.c 'ssh_gssapi_parse_ename' function. A remote attacker may be able to trigger this vulnerability if gssapi-with-mic is enabled to create a denial of service condition via a large value in a certain length field. (CVE-2011-5000)
- On FreeBSD, NetBSD, OpenBSD, and other products, a remote, authenticated attacker could exploit the remote_glob() and process_put() functions to cause a denial of service (CPU and memory consumption). (CVE-2010-4755)
Solution
Upgrade to OpenSSH 5.9 or later.See Also
Plugin Details
Severity: Medium
ID: 701162
Family: SSH
Published: 8/21/2019
Updated: 8/21/2019
Nessus ID: 17703
Risk Information
CVSS v2
Risk Factor: Medium
Base Score: 5.3
Temporal Score: 4.6
Vector: AV:N/AC:L/Au:S/C:N/I:N/A:P
Temporal Vector: E:U/RL:OF/RC:C
CVSS v3
Risk Factor: Medium
Base Score: 5.3
Temporal Score: 4.5
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Temporal Vector: E:U/RL:O/RC:C
Vulnerability Information
CPE: cpe:/a:openbsd:openssh
Patch Publication Date: 9/6/2011
Vulnerability Publication Date: 7/7/2010
Reference Information
CVE: CVE-2010-4755, CVE-2011-5000