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Vulnerability Details : CVE-2011-5000

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.
Publish Date : 2012-04-05 Last Update Date : 2012-07-21
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- CVSS Scores & Vulnerability Types

CVSS Score
3.5
Confidentiality Impact None (There is no impact to the confidentiality of the system.)
Integrity Impact None (There is no impact to the integrity of the system)
Availability Impact Partial (There is reduced performance or interruptions in resource availability.)
Access Complexity Medium (The access conditions are somewhat specialized. Some preconditions must be satistified to exploit)
Authentication Single system (The vulnerability requires an attacker to be logged into the system (such as at a command line or via a desktop session or web interface).)
Gained Access None
Vulnerability Type(s) Denial Of Service
CWE ID 189

- Additional Vendor Supplied Data

Vendor Impact CVSS Score CVSS Vector Report Date Publish Date
Redhat low
3.5
AV:N/AC:M/Au:S/C:N/I:N/A:P 2011-08-01 2011-08-01
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- Related OVAL Definitions

Title Definition Id Class Family
ELSA-2012:0884: openssh security, bug fix, and enhancement update (Low) oval:org.mitre.oval:def:23663 unix
RHSA-2012:0884: openssh security, bug fix, and enhancement update (Low) oval:org.mitre.oval:def:21581 unix
RHSA-2012:0884: openssh security, bug fix, and enhancement update (Low) oval:com.redhat.rhsa:def:20120884 unix
OVAL (Open Vulnerability and Assessment Language) definitions define exactly what should be done to verify a vulnerability or a missing patch. Check out the OVAL definitions if you want to learn what you should do to verify a vulnerability.

- Products Affected By CVE-2011-5000

# Product Type Vendor Product Version Update Edition Language
1 Application Openbsd Openssh 1.2 Version Details Vulnerabilities
2 Application Openbsd Openssh 1.2.1 Version Details Vulnerabilities
3 Application Openbsd Openssh 1.2.2 Version Details Vulnerabilities
4 Application Openbsd Openssh 1.2.3 Version Details Vulnerabilities
5 Application Openbsd Openssh 1.2.27 Version Details Vulnerabilities
6 Application Openbsd Openssh 1.3 Version Details Vulnerabilities
7 Application Openbsd Openssh 1.5 Version Details Vulnerabilities
8 Application Openbsd Openssh 1.5.7 Version Details Vulnerabilities
9 Application Openbsd Openssh 1.5.8 Version Details Vulnerabilities
10 Application Openbsd Openssh 3.0p1 Version Details Vulnerabilities
11 Application Openbsd Openssh 3.0 Version Details Vulnerabilities
12 Application Openbsd Openssh 3.0.1 Version Details Vulnerabilities
13 Application Openbsd Openssh 3.0.1p1 Version Details Vulnerabilities
14 Application Openbsd Openssh 3.0.2p1 Version Details Vulnerabilities
15 Application Openbsd Openssh 3.0.2 Version Details Vulnerabilities
16 Application Openbsd Openssh 3.1 Version Details Vulnerabilities
17 Application Openbsd Openssh 3.1p1 Version Details Vulnerabilities
18 Application Openbsd Openssh 3.2 Version Details Vulnerabilities
19 Application Openbsd Openssh 3.2.2 Version Details Vulnerabilities
20 Application Openbsd Openssh 3.2.2p1 Version Details Vulnerabilities
21 Application Openbsd Openssh 3.2.3p1 Version Details Vulnerabilities
22 Application Openbsd Openssh 3.3p1 Version Details Vulnerabilities
23 Application Openbsd Openssh 3.3 Version Details Vulnerabilities
24 Application Openbsd Openssh 3.4 Version Details Vulnerabilities
25 Application Openbsd Openssh 3.4p1 Version Details Vulnerabilities
26 Application Openbsd Openssh 3.5 Version Details Vulnerabilities
27 Application Openbsd Openssh 3.5p1 Version Details Vulnerabilities
28 Application Openbsd Openssh 3.6 Version Details Vulnerabilities
29 Application Openbsd Openssh 3.6.1 Version Details Vulnerabilities
30 Application Openbsd Openssh 3.6.1p1 Version Details Vulnerabilities
31 Application Openbsd Openssh 3.6.1p2 Version Details Vulnerabilities
32 Application Openbsd Openssh 3.7 Version Details Vulnerabilities
33 Application Openbsd Openssh 3.7.1 Version Details Vulnerabilities
34 Application Openbsd Openssh 3.7.1p1 Version Details Vulnerabilities
35 Application Openbsd Openssh 3.7.1p2 Version Details Vulnerabilities
36 Application Openbsd Openssh 3.8 Version Details Vulnerabilities
37 Application Openbsd Openssh 3.8.1 Version Details Vulnerabilities
38 Application Openbsd Openssh 3.8.1p1 Version Details Vulnerabilities
39 Application Openbsd Openssh 3.9 Version Details Vulnerabilities
40 Application Openbsd Openssh 3.9.1p1 Version Details Vulnerabilities
41 Application Openbsd Openssh 3.9.1 Version Details Vulnerabilities
42 Application Openbsd Openssh 4.0 Version Details Vulnerabilities
43 Application Openbsd Openssh 4.0p1 Version Details Vulnerabilities
44 Application Openbsd Openssh 4.1 Version Details Vulnerabilities
45 Application Openbsd Openssh 4.1p1 Version Details Vulnerabilities
46 Application Openbsd Openssh 4.2p1 Version Details Vulnerabilities
47 Application Openbsd Openssh 4.2 Version Details Vulnerabilities
48 Application Openbsd Openssh 4.3p2 Version Details Vulnerabilities
49 Application Openbsd Openssh 4.3 Version Details Vulnerabilities
50 Application Openbsd Openssh 4.3p1 Version Details Vulnerabilities
51 Application Openbsd Openssh 4.4 Version Details Vulnerabilities
52 Application Openbsd Openssh 4.4p1 Version Details Vulnerabilities
53 Application Openbsd Openssh 4.5 Version Details Vulnerabilities
54 Application Openbsd Openssh 4.6 Version Details Vulnerabilities
55 Application Openbsd Openssh 4.7 Version Details Vulnerabilities
56 Application Openbsd Openssh 4.8 Version Details Vulnerabilities
57 Application Openbsd Openssh 4.9 Version Details Vulnerabilities
58 Application Openbsd Openssh 5.0 Version Details Vulnerabilities
59 Application Openbsd Openssh 5.1 Version Details Vulnerabilities
60 Application Openbsd Openssh 5.2 Version Details Vulnerabilities
61 Application Openbsd Openssh 5.3 Version Details Vulnerabilities
62 Application Openbsd Openssh 5.4 Version Details Vulnerabilities
63 Application Openbsd Openssh 5.5 Version Details Vulnerabilities
64 Application Openbsd Openssh 5.6 Version Details Vulnerabilities
65 Application Openbsd Openssh 5.7 Version Details Vulnerabilities
66 Application Openbsd Openssh 5.8 Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Openbsd Openssh 66

- References For CVE-2011-5000

http://rhn.redhat.com/errata/RHSA-2012-0884.html
REDHAT RHSA-2012:0884
http://site.pi3.com.pl/adv/ssh_1.txt
http://seclists.org/fulldisclosure/2011/Aug/2
FULLDISC 20110801 Useless OpenSSH resources exhausion bug via GSSAPI

- Metasploit Modules Related To CVE-2011-5000

There are not any metasploit modules related to this vulnerability (Please visit www.metasploit.com for more information)


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