Bug 556680 (CVE-2010-0283) - CVE-2010-0283 krb5 KDC denial of service
Summary: CVE-2010-0283 krb5 KDC denial of service
Alias: CVE-2010-0283
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL: http://web.nvd.nist.gov/view/vuln/det...
Depends On: 566002 566003
TreeView+ depends on / blocked
Reported: 2010-01-19 03:45 UTC by Vincent Danen
Modified: 2021-11-12 20:03 UTC (History)
4 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Last Closed: 2010-03-29 11:19:50 UTC

Attachments (Terms of Use)

Description Vincent Danen 2010-01-19 03:45:03 UTC
A flaw was found in how the KDC processed invalid requests.  An unauthenticated remote attacker could send an invalid request to a KDC process that would cause it to crash due to an assertion failure, resulting in a denial of service of the KDC.

This flaw only affects MIT krb5 version 1.7 and later; earlier versions did not contain the vulnerable code.

Comment 2 Vincent Danen 2010-02-16 21:22:11 UTC
This is now public upstream via MITKRB5-SA-2010-001:


This issue does not affect Red Hat Enterprise Linux 3, 4, or 5 as they do not ship with Kerberos >=1.7, and this is a vulnerability in code introduced in Kerberos 1.7.

This issue does affect Fedora 11 and 12.

Comment 6 Fedora Update System 2010-02-18 22:26:32 UTC
krb5-1.7.1-2.fc12 has been pushed to the Fedora 12 stable repository.  If problems still persist, please make note of it in this bug report.

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