Bug 557025 (CVE-2010-0297)

Summary: CVE-2010-0297 kvm-userspace-rhel5: usb-linux.c: fix buffer overflow
Product: [Other] Security Response Reporter: Eugene Teo (Security Response) <eteo>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED ERRATA QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: bressers, ehabkost, knoel, vdanen
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: 2013-03-26 15:12:12 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Bug Depends On: 560769, 560770, 560771    
Bug Blocks:    

Description Eugene Teo (Security Response) 2010-01-20 06:59:19 UTC
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 18:40:11 UTC
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 19:08:31 UTC
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 10:02:01 UTC
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 15:47:00 UTC
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