Bug 633140 – CVE-2010-3298 kernel: drivers/net/usb/hso.c: prevent reading uninitialized memory

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Bug 633140 - (CVE-2010-3298) CVE-2010-3298 kernel: drivers/net/usb/hso.c: prevent reading uninitialized memory

Summary:	CVE-2010-3298 kernel: drivers/net/usb/hso.c: prevent reading uninitialized me...

Status:	NEW

Aliases:	CVE-2010-3298

Product:	Security Response
Classification:	Other
Component:	vulnerability (Show other bugs)
Sub Component:
Version:	unspecified
Hardware:	All Linux

Priority	low Severity low
Target Milestone:	---
Target Release:	---
Assigned To:	Red Hat Product Security
QA Contact:
Docs Contact:

URL:
Whiteboard:	reported=20100913,source=lkml,impact=...
Keywords:	Security

Depends On:	633142 633143 633144
Blocks:
	Show dependency tree / graph

Reported:	2010-09-12 23:56 EDT by Eugene Teo (Security Response)
Modified:	2018-08-28 17:50 EDT (History)
CC List:	9 users (show)

See Also:
Fixed In Version:
Doc Type:	Bug Fix
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RHEL 7.3 requirements from Atomic Host:
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Add an attachment (proposed patch, testcase, etc.)

External Trackers
Tracker	ID	Priority	Status	Summary	Last Updated
Red Hat Product Errata	RHSA-2011:0007	normal	SHIPPED_LIVE	Important: kernel security and bug fix update	2011-01-11 14:44:55 EST

Groups: None (edit)

Description Eugene Teo (Security Response) 2010-09-12 23:56:05 EDT

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 08:09:10 EDT

Commit in David Miller's tree is
7011e660938fc44ed86319c18a5954e95a82ab3e

Comment 4 Eugene Teo (Security Response) 2010-11-02 01:06:46 EDT

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 14:46:13 EST

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

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