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: Embargoed1623665
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:
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Last Closed: 2019-06-10 10:41:26 UTC

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

Reference:
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  -> 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]
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