CVE-2021-3392

LOW

QEMU 2.10.0-5.2.0 - Use-After-Free in MegaRAID SCSI I/O Request Handling

Title source: llm

Description

A use-after-free flaw was found in the MegaRAID emulator of QEMU. This issue occurs while processing SCSI I/O requests in the case of an error mptsas_free_request() that does not dequeue the request object 'req' from a pending requests queue. This flaw allows a privileged guest user to crash the QEMU process on the host, resulting in a denial of service. Versions between 2.10.0 and 5.2.0 are potentially affected.

References (5)

Core 5

Core References

Issue Tracking, Patch, Third Party Advisory x_refsource_misc

https://bugzilla.redhat.com/show_bug.cgi?id=1924042

Exploit, Third Party Advisory x_refsource_misc

https://bugs.launchpad.net/qemu/+bug/1914236

Third Party Advisory mailing-list x_refsource_mlist

https://lists.debian.org/debian-lts-announce/2021/04/msg00009.html

Third Party Advisory x_refsource_confirm

https://security.netapp.com/advisory/ntap-20210507-0001/

Mailing List, Third Party Advisory mailing-list x_refsource_mlist

https://lists.debian.org/debian-lts-announce/2022/09/msg00008.html

Scores

CVSS v3 3.2

EPSS 0.0003

EPSS Percentile 8.0%

Attack Vector LOCAL

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:L

Details

CWE

CWE-416

Status published

Products (4)

debian/debian_linux 9.0

debian/debian_linux 10.0

fedoraproject/fedora 33

qemu/qemu 2.10.0 - 5.2.0

Published Mar 23, 2021

Tracked Since Feb 18, 2026