Public Date:
809938: CVE-2011-5000 openssh: post-authentication resource exhaustion bug via GSSAPI

The MITRE CVE dictionary describes this issue as:

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. NOTE: there may be limited scenarios in which this issue is relevant.

Find out more about CVE-2011-5000 from the MITRE CVE dictionary dictionary and NIST NVD.

CVSS v2 metrics

NOTE: The following CVSS v2 metrics and score provided are preliminary and subject to review.

Base Score 3.5
Base Metrics AV:N/AC:M/Au:S/C:N/I:N/A:P
Access Vector Network
Access Complexity Medium
Authentication Single
Confidentiality Impact None
Integrity Impact None
Availability Impact Partial

Find out more about Red Hat support for the Common Vulnerability Scoring System (CVSS).

Red Hat Security Errata

Platform Errata Release Date
Red Hat Enterprise Linux version 6 (openssh) RHSA-2012:0884 2012-06-19

Affected Packages State

Platform Package State
Red Hat Enterprise Linux 4 openssh Will not fix
Red Hat Enterprise Linux 5 openssh Will not fix