Bug 557025 – CVE-2010-0297 kvm-userspace-rhel5: usb-linux.c: fix buffer overflow

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Bug 557025 - (CVE-2010-0297) CVE-2010-0297 kvm-userspace-rhel5: usb-linux.c: fix buffer overflow

Summary:	CVE-2010-0297 kvm-userspace-rhel5: usb-linux.c: fix buffer overflow

Status:	CLOSED ERRATA

Aliases:	CVE-2010-0297

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

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

URL:
Whiteboard:	impact=moderate,source=redhat,reporte...
Keywords:	Security

Depends On:	560769 560770 560771
Blocks:
	Show dependency tree / graph

Reported:	2010-01-20 01:59 EST by Eugene Teo (Security Response)
Modified:	2013-03-26 11:12 EDT (History)
CC List:	4 users (show)

See Also:
Fixed In Version:
Doc Type:	Bug Fix
Doc Text:
Story Points:	---
Clone Of:
Environment:
Last Closed:	2013-03-26 11:12:12 EDT
Type:	---
Regression:	---
Mount Type:	---
Documentation:	---
CRM:
Verified Versions:
Category:	---
oVirt Team:	---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---

Attachments	(Terms of Use)
Add an attachment (proposed patch, testcase, etc.)

External Trackers
Tracker	ID	Priority	Status	Summary	Last Updated
Red Hat Product Errata	RHSA-2010:0088	normal	SHIPPED_LIVE	Important: kvm security and bug fix update	2010-02-09 05:01:51 EST
Red Hat Product Errata	RHSA-2010:0172	normal	SHIPPED_LIVE	Important: rhev-hypervisor security and bug fix update	2010-03-24 11:46:46 EDT

Groups: None (edit)

Description Eugene Teo (Security Response) 2010-01-20 01:59:19 EST

Description of problem:
usb-linux.c: fix buffer overflow - made into 0.11.1. This bug is to ensure we backport this change to 0.10.0.

Comment 5 Josh Bressers 2010-01-20 13:40:11 EST

The patch for this seems to be here:
http://git.savannah.gnu.org/cgit/qemu.git/commit/?id=babd03fde68093482528010a5435c14ce9128e3f

Comment 6 Josh Bressers 2010-01-20 14:08:31 EST

So if I understand this correctly.

To exploit this flaw, an attacker would need:
1) A physical USB device plugged into the host machine
2) The USB device "attached" to a guest or the attacker has access to
    libvirtd and can attach a USB device.
3) Enough access to the guest to trigger the buffer overflow (root)

From what I can tell, without spending too much time on this, it's very
likely exploitable. I don't think we can prove it's not, as this will end
up overwriting a bunch of global structures, which would have a rather
unknown result.

Presuming my above alalysis is correct, this flaw is probably moderate.

Comment 10 errata-xmlrpc 2010-02-09 05:02:01 EST

This issue has been addressed in following products:

  Red Hat Enterprise Linux 5

Via RHSA-2010:0088 https://rhn.redhat.com/errata/RHSA-2010-0088.html

Comment 11 errata-xmlrpc 2010-03-24 11:47:00 EDT

This issue has been addressed in following products:

  Red Hat Enterprise Virtualization for RHEL-5

Via RHSA-2010:0172 https://rhn.redhat.com/errata/RHSA-2010-0172.html

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