Note: This is a public test instance of Red Hat Bugzilla. The data contained within is a snapshot of the live data so any changes you make will not be reflected in the production Bugzilla. Email is disabled so feel free to test any aspect of the site that you want. File any problems you find or give feedback at bugzilla.redhat.com.
Bug 1644973 (CVE-2018-18849) - CVE-2018-18849 QEMU: lsi53c895a: OOB msg buffer access leads to DoS
Summary: CVE-2018-18849 QEMU: lsi53c895a: OOB msg buffer access leads to DoS
Keywords:
Status: CLOSED WONTFIX
Alias: CVE-2018-18849
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1644977 1644978
Blocks:
TreeView+ depends on / blocked
 
Reported: 2018-11-01 06:03 UTC by Prasad Pandit
Modified: 2021-02-16 22:50 UTC (History)
37 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed: 2019-06-10 10:41:26 UTC
Embargoed:


Attachments (Terms of Use)

Description Prasad Pandit 2018-11-01 06:03:05 UTC
An out of bounds memory access issue was found in the LSI53C895A SCSI Host Bus Adapter emulation while writing a message in lsi_do_msgin. It could occur during migration if the 'msg_len' field has an invalid value.  A user/process could use this flaw to crash the Qemu process resulting in DoS.

Upstream patch:
---------------
  -> https://lists.gnu.org/archive/html/qemu-devel/2018-10/msg06682.html

Reference:
----------
  -> https://www.openwall.com/lists/oss-security/2018/11/01/1

Comment 1 Prasad Pandit 2018-11-01 06:03:30 UTC
Acknowledgments:

Name: Deja vu Security (dejavusecurity.com)

Comment 2 Prasad Pandit 2018-11-01 06:31:31 UTC
Created qemu tracking bugs for this issue:

Affects: fedora-all [bug 1644977]


Created xen tracking bugs for this issue:

Affects: fedora-all [bug 1644978]


Note You need to log in before you can comment on or make changes to this bug.