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Vulnerability Details : CVE-2009-0845

The spnego_gss_accept_sec_context function in lib/gssapi/spnego/spnego_mech.c in MIT Kerberos 5 (aka krb5) 1.5 through 1.6.3, when SPNEGO is used, allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via invalid ContextFlags data in the reqFlags field in a negTokenInit token.
Publish Date : 2009-03-27 Last Update Date : 2017-09-28
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- CVSS Scores & Vulnerability Types

CVSS Score
5.0
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 Low (Specialized access conditions or extenuating circumstances do not exist. Very little knowledge or skill is required to exploit. )
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s) Denial Of Service
CWE ID 20

- Additional Vendor Supplied Data

Vendor Impact CVSS Score CVSS Vector Report Date Publish Date
Redhat important
5.8
AV:N/AC:M/Au:N/C:P/I:N/A:P 2009-03-13 2009-03-13
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- Related OVAL Definitions

Title Definition Id Class Family
CVE-2009-0845 oval:org.opensuse.security:def:20090845 unix
DSA-1766 krb5 -- several vulnerabilities oval:org.mitre.oval:def:8181 unix
DSA-1766-1 krb5 -- several oval:org.mitre.oval:def:13177 unix
ELSA-2009:0408: krb5 security update (Important) oval:org.mitre.oval:def:22765 unix
Kerberos GSS-API SPNEGO Null Pointer Dereference and Invalid Memory Access Bugs Let Remote Denial of Service oval:org.mitre.oval:def:6449 unix
RHSA-2009:0408 -- krb5 security update (Important) oval:org.mitre.oval:def:28421 unix
RHSA-2009:0408: krb5 security update (Important) oval:com.redhat.rhsa:def:20090408 unix
The spnego_gss_accept_sec_context function in lib/gssapi/spnego/spnego_mech.c in MIT Kerberos 5 (aka krb5) 1.5 through 1... oval:org.mitre.oval:def:10044 unix
USN-755-1 -- krb5 vulnerabilities oval:org.mitre.oval:def:13874 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-2009-0845

# Product Type Vendor Product Version Update Edition Language
1 Application MIT Kerberos 5-1.5 Version Details Vulnerabilities
2 Application MIT Kerberos 5-1.5.1 Version Details Vulnerabilities
3 Application MIT Kerberos 5-1.5.2 Version Details Vulnerabilities
4 Application MIT Kerberos 5-1.5.3 Version Details Vulnerabilities
5 Application MIT Kerberos 5-1.6 Version Details Vulnerabilities
6 Application MIT Kerberos 5-1.6.1 Version Details Vulnerabilities
7 Application MIT Kerberos 5-1.6.2 Version Details Vulnerabilities
8 Application MIT Kerberos 5-1.6.3 Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
MIT Kerberos 8

- References For CVE-2009-0845

http://src.mit.edu/fisheye/changelog/krb5/?cs=22084 CONFIRM
https://www.redhat.com/archives/fedora-package-announce/2009-April/msg00206.html
FEDORA FEDORA-2009-2852
https://www.redhat.com/archives/fedora-package-announce/2009-April/msg00205.html
FEDORA FEDORA-2009-2834
https://exchange.xforce.ibmcloud.com/vulnerabilities/49448
XF kerberos-spnego-dos(49448)
http://www.vupen.com/english/advisories/2009/2248
VUPEN ADV-2009-2248
http://www.vupen.com/english/advisories/2009/1297
VUPEN ADV-2009-1297
http://www.vupen.com/english/advisories/2009/1106
VUPEN ADV-2009-1106
http://www.vupen.com/english/advisories/2009/1057
VUPEN ADV-2009-1057
http://www.vupen.com/english/advisories/2009/0976
VUPEN ADV-2009-0976
http://www.vupen.com/english/advisories/2009/0847
VUPEN ADV-2009-0847
http://www.ubuntu.com/usn/usn-755-1
UBUNTU USN-755-1
http://www.us-cert.gov/cas/techalerts/TA09-133A.html
CERT TA09-133A
http://www.securityfocus.com/bid/34257
BID 34257 MIT Kerberos 'NegTokenInit' Token Handling Remote Denial Of Service Vulnerability Release Date:2013-01-31
http://www.securitytracker.com/id?1021867
SECTRACK 1021867
http://support.novell.com/docs/Readmes/InfoDocument/patchbuilder/readme_5047181.html
http://web.mit.edu/kerberos/advisories/MITKRB5-SA-2009-001.txt CONFIRM
http://wiki.rpath.com/Advisories:rPSA-2009-0058 CONFIRM
http://wiki.rpath.com/wiki/Advisories:rPSA-2009-0058
http://www-01.ibm.com/support/docview.wss?uid=swg21396120 CONFIRM
http://www.kb.cert.org/vuls/id/662091
CERT-VN VU#662091
http://www.mandriva.com/security/advisories?name=MDVSA-2009:082
MANDRIVA MDVSA-2009:082
http://www.redhat.com/support/errata/RHSA-2009-0408.html
REDHAT RHSA-2009:0408
http://www.securityfocus.com/archive/1/archive/1/502526/100/0/threaded
BUGTRAQ 20090407 MITKRB5-SA-2009-001: multiple vulnerabilities in SPNEGO, ASN.1 decoder [CVE-2009-0844 CVE-2009-0845 CVE-2009-0847]
http://www.securityfocus.com/archive/1/archive/1/502546/100/0/threaded
BUGTRAQ 20090407 rPSA-2009-0058-1 krb5 krb5-server krb5-services krb5-test krb5-workstation
http://support.apple.com/kb/HT3549 CONFIRM
http://support.avaya.com/elmodocs2/security/ASA-2009-142.htm CONFIRM
http://support.novell.com/docs/Readmes/InfoDocument/patchbuilder/readme_5047180.html
http://sunsolve.sun.com/search/document.do?assetkey=1-26-256728-1
SUNALERT 256728
http://krbdev.mit.edu/rt/Ticket/Display.html?user=guest&pass=guest&id=6402 CONFIRM
http://security.gentoo.org/glsa/glsa-200904-09.xml
GENTOO GLSA-200904-09
http://src.mit.edu/fisheye/browse/krb5/trunk/src/lib/gssapi/spnego/spnego_mech.c?r1=21875&r2=22084 CONFIRM
http://lists.apple.com/archives/security-announce/2009/May/msg00002.html
APPLE APPLE-SA-2009-05-12

- Metasploit Modules Related To CVE-2009-0845

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


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