Bug 633140 (CVE-2010-3298)

Summary:	CVE-2010-3298 kernel: drivers/net/usb/hso.c: prevent reading uninitialized memory
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:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	arozansk, bhu, fhrbata, jkacur, lgoncalv, peterm, pmatouse, 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 09:14:36 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:	633142, 633143, 633144
Bug Blocks:

Description Eugene Teo (Security Response) 2010-09-13 03:56:05 UTC

Description of problem:
http://lkml.org/lkml/2010/9/11/167

The TIOCGICOUNT device ioctl allows unprivileged users to read 9 bytes of uninitialized stack memory, because the "reserved" member of the serial_icounter_struct struct declared on the stack in hso_get_count() is not altered or zeroed before being copied back to the user.  This patch takes care of it.

Acknowledgements:

Red Hat would like to thank Dan Rosenberg for reporting this issue.

Comment 3 John Kacur 2010-09-17 12:09:10 UTC

Commit in David Miller's tree is
7011e660938fc44ed86319c18a5954e95a82ab3e

Comment 4 Eugene Teo (Security Response) 2010-11-02 05:06:46 UTC

Statement:

This issue did not affect the versions of Linux kernel as shipped with Red Hat Enterprise Linux 3, 4, and 5, as they did not support USB Option High Speed Mobile Devices. This was addressed in Red Hat Enterprise Linux Enterprise MRG via https://rhn.redhat.com/errata/RHSA-2010-0771.html.

Comment 5 errata-xmlrpc 2011-01-11 19:46:13 UTC

This issue has been addressed in following products:

  Red Hat Enterprise Linux 6

Via RHSA-2011:0007 https://rhn.redhat.com/errata/RHSA-2011-0007.html