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Bug 82961 - krb5 < 1.2.5 vulnerable to multiple attacks
Summary: krb5 < 1.2.5 vulnerable to multiple attacks
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat Linux
Classification: Retired
Component: krb5
Version: 7.3
Hardware: All
OS: Linux
high
medium
Target Milestone: ---
Assignee: Nalin Dahyabhai
QA Contact: Brian Brock
URL: http://online.securityfocus.com/archi...
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2003-01-28 23:57 UTC by Seth Vidal
Modified: 2007-03-27 04:00 UTC (History)
0 users

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2003-04-23 10:36:01 UTC


Attachments (Terms of Use)

Description Seth Vidal 2003-01-28 23:57:13 UTC
Description of problem: According to the included URL krb5's kdc <1.2.5 is
vulnerable to multiple attacks.

Are there patches and/or errata in the queue for release?

would a rebuild of srpms from 8.0 work on 7.3?



thanks
-sv

Comment 1 Mark J. Cox 2003-02-06 11:23:32 UTC
Only the following two of the four listed vulnerabilities apply to Red Hat Linux
7.3:

An integer signedness error in the ASN.1 decoder before version 1.2.5
allows remote attackers to cause a denial of service via a large unsigned
data element length, which is later used as a negative value. The Common
Vulnerabilities and Exposures project has assigned the name CAN-2002-0036
to this issue. Red Hat Linux 8.0 and later is not affected by this issue.

The Key Distribution Center (KDC) before version 1.2.5 allows remote,
authenticated, attackers to cause a denial of service (crash) on KDCs
within the same realm via a certain protocol request that causes a null
dereference. The Common Vulnerabilities and Exposures project has assigned
the name CAN-2003-0058 to this issue. Red Hat Linux 8.0 and later is not
affected by this issue.

An advisory containing backported patches for these issues is being worked on

Comment 2 Mark J. Cox 2003-04-23 10:36:01 UTC
These and other issues were fixed by errata
http://rhn.redhat.com/errata/RHSA-2003-051.html
out on Mar26


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