National Vulnerability Database

National Vulnerability Database

National Vulnerability

CVE-2009-0847 Detail


The asn1buf_imbed function in the ASN.1 decoder in MIT Kerberos 5 (aka krb5) 1.6.3, when PK-INIT is used, allows remote attackers to cause a denial of service (application crash) via a crafted length value that triggers an erroneous malloc call, related to incorrect calculations with pointer arithmetic.

Source:  MITRE      Last Modified:  04/08/2009

Quick Info

CVE Dictionary Entry:
Original release date:
Last revised:


CVSS Severity (version 2.0):
CVSS v2 Base Score:
(AV:N/AC:M/Au:N/C:N/I:N/A:P) (legend)
Impact Subscore:
Exploitability Subscore:
CVSS Version 2 Metrics:
Access Vector:
Network exploitable
Access Complexity:
Not required to exploit
Impact Type:
Allows disruption of service

Vendor Statements (disclaimer)

Official Statement from Red Hat (04/09/2009)

Not vulnerable. This issue did not affect the versions of krb5 as shipped with Red Hat Enterprise Linux 2.1, 3, 4, or 5.

References to Advisories, Solutions, and Tools

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Hyperlink Resource Type Source Name External Source APPLE APPLE-SA-2009-05-12 External Source HP HPSBUX02421 External Source GENTOO GLSA-200904-09 External Source SUNALERT 256728 External Source CONFIRM External Source CONFIRM External Source MISC External Source MISC Vendor Advisory External Source CONFIRM External Source CONFIRM External Source MISC External Source MANDRIVA MDVSA-2009:098 External Source BUGTRAQ 20090407 MITKRB5-SA-2009-001: multiple vulnerabilities in SPNEGO, ASN.1 decoder [CVE-2009-0844 CVE-2009-0845 CVE-2009-0847] External Source BUGTRAQ 20090407 rPSA-2009-0058-1 krb5 krb5-server krb5-services krb5-test krb5-workstation External Source BID 34408 External Source SECTRACK 1021993 External Source UBUNTU USN-755-1 US Government Resource External Source CERT TA09-133A External Source VUPEN ADV-2009-0960 External Source VUPEN ADV-2009-0976 External Source VUPEN ADV-2009-1057 External Source VUPEN ADV-2009-1106 External Source VUPEN ADV-2009-1297 External Source VUPEN ADV-2009-2084 External Source VUPEN ADV-2009-2248 External Source CONFIRM External Source OVAL oval:org.mitre.oval:def:6387 External Source FEDORA FEDORA-2009-2834 External Source FEDORA FEDORA-2009-2852

References to Check Content

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Technical Details

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