Bug 624903 (CVE-2010-2942)

Summary:	CVE-2010-2942 kernel: net sched: fix some kernel memory leaks
Product:	[Other] Security Response	Reporter:	Eugene Teo (Security Response) <eteo>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	bhu, dhoward, jkacur, jlieskov, jolsa, lgoncalv, plyons, rkhan, vgoyal, williams
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2021-10-19 09:13:39 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	624637, 624638, 624904, 624906, 624907, 626315, 626316
Bug Blocks:

Description Eugene Teo (Security Response) 2010-08-18 03:52:29 UTC

Description of problem:
We leak at least 32bits of kernel memory to user land in tc dump, because we dont init all fields (capab ?) of the dumped structure.

Use C99 initializers so that holes and non explicit fields are zeroed.

http://patchwork.ozlabs.org/patch/61857/

Comment 3 Jiri Pirko 2010-08-19 06:14:31 UTC

upstream commit:

http://git.kernel.org/?p=linux/kernel/git/davem/net-2.6.git;a=commitdiff;h=1c40be12f7d8ca1d387510d39787b12e512a7ce8

Comment 5 Eugene Teo (Security Response) 2010-08-23 07:39:42 UTC

Statement:

This issue did not affect the version of Linux kernel as shipped with Red Hat
Enterprise Linux 3 as it did not include upstream commit be84c7f6 (history repository) that introduced the problem. A future kernel update in Red Hat Enterprise Linux 4, 5 and Red Hat Enterprise MRG will address this issue.

Comment 6 errata-xmlrpc 2010-09-29 14:54:07 UTC

This issue has been addressed in following products:

  Red Hat Enterprise Linux 5

Via RHSA-2010:0723 https://rhn.redhat.com/errata/RHSA-2010-0723.html

Comment 7 errata-xmlrpc 2010-10-14 15:30:24 UTC

This issue has been addressed in following products:

  MRG for RHEL-5

Via RHSA-2010:0771 https://rhn.redhat.com/errata/RHSA-2010-0771.html

Comment 8 errata-xmlrpc 2010-10-19 18:48:01 UTC

This issue has been addressed in following products:

  Red Hat Enterprise Linux 4

Via RHSA-2010:0779 https://rhn.redhat.com/errata/RHSA-2010-0779.html