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Bug 227495 - CVE-2007-0006 Key serial number collision problem
Summary: CVE-2007-0006 Key serial number collision problem
Alias: None
Product: Red Hat Enterprise Linux 4
Classification: Red Hat
Component: kernel
Version: 4.0
Hardware: All
OS: Linux
Target Milestone: ---
: ---
Assignee: David Howells
QA Contact: Brian Brock
Whiteboard: impact=important,source=kernelbugzill...
Depends On:
TreeView+ depends on / blocked
Reported: 2007-02-06 13:56 UTC by Marcel Holtmann
Modified: 2007-11-30 22:07 UTC (History)
2 users (show)

Fixed In Version: RHSA-2007-0085
Doc Type: Bug Fix
Doc Text:
Clone Of:
Last Closed: 2007-02-27 07:56:34 UTC
Target Upstream Version:

Attachments (Terms of Use)
Patch to fix key serial number collision problem in RHEL4 (deleted)
2007-02-06 14:50 UTC, David Howells
no flags Details | Diff

System ID Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2007:0085 normal SHIPPED_LIVE Important: kernel security update 2007-02-27 07:54:19 UTC

Description Marcel Holtmann 2007-02-06 13:56:06 UTC
The key serial number collision avoidance code is wrong.

This didn't use to be a problem as the key serial numbers were allocated from 
a simple incremented counter, and you'd have to go through 2 billion keys 
before encountering a collision.

However, now that random numbers are used instead, collisions are much more 

Comment 2 David Howells 2007-02-06 14:50:21 UTC
Created attachment 147468 [details]
Patch to fix key serial number collision problem in RHEL4

Comment 5 Jason Baron 2007-02-19 22:48:49 UTC
committed in stream E5 build 42.0.10. A test kernel with this patch is available

Comment 7 RHEL Product and Program Management 2007-02-20 15:04:02 UTC
This request was evaluated by Red Hat Product Management for inclusion in a Red
Hat Enterprise Linux maintenance release.  Product Management has requested
further review of this request by Red Hat Engineering, for potential
inclusion in a Red Hat Enterprise Linux Update release for currently deployed
products.  This request is not yet committed for inclusion in an Update

Comment 10 Red Hat Bugzilla 2007-02-27 07:56:35 UTC
An advisory has been issued which should help the problem
described in this bug report. This report is therefore being
closed with a resolution of ERRATA. For more information
on the solution and/or where to find the updated files,
please follow the link below. You may reopen this bug report
if the solution does not work for you.

Comment 11 Jason Baron 2007-02-27 20:17:30 UTC
committed in stream U5 build 49. A test kernel with this patch is available from

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