QID 38866

Date Published: 2022-06-07

QID 38866: OpenSSH Denial of Service (DoS) Vulnerability

OpenSSH (OpenBSD Secure Shell) is a set of computer programs providing encrypted communication sessions over a computer network using the SSH protocol.

The ssh_gssapi_parse_ename function in gss-serv.c in OpenSSH 5.8 and earlier, when gssapi-with-mic authentication is enabled, allows remote authenticated users to cause a denial of service (memory consumption) via a large value in a certain length field.

Affected Versions:
OpenSSH before 5.9

QID Detection Logic:
This unauthenticated detection works by reviewing the version of the OpenSSH service.

Allows remote authenticated users to cause a denial of service.

CVSS V3 rated as Medium - 5.5 severity.

CVSS V2 rated as Medium - 3.5 severity.

Solution

Customers are advised to upgrade to OpenSSH 5.9 or later to remediate these vulnerabilities.

Vendor References

Openssh - seclists.org/fulldisclosure/2011/Aug/2

CVEs related to QID 38866

CVE-2011-5000 |

Software Advisories

Advisory ID	Software	Component	Link
CVE-2011-5000			seclists.org/fulldisclosure/2011/Aug/2

By selecting these links, you may be leaving CVEreport webspace. We have provided these links to other websites because they may have information that would be of interest to you. No inferences should be drawn on account of other sites being referenced, or not, from this page. There may be other websites that are more appropriate for your purpose. CVEreport does not necessarily endorse the views expressed, or concur with the facts presented on these sites. Further, CVEreport does not endorse any commercial products that may be mentioned on these sites. Please address comments about any linked pages to [email protected].