CVE Vulnerability

CVE-2021-3392

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.

2.1 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 2.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

Scope

3.2 /10

CVSS v3.0 : LOW

V3 Legend

Vector :

Exploitability : 1.5 / Impact : 1.4

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required HIGH

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact LOW

Scope CHANGED

References
Link Resource
https://bugzilla.redhat.com/show_bug.cgi?id=1924042 Issue Tracking Patch
https://bugs.launchpad.net/qemu/+bug/1914236 Exploit Third Party Advisory
https://lists.debian.org/debian-lts-announce/2021/04/msg00009.html Third Party Advisory
https://security.netapp.com/advisory/ntap-20210507-0001/ Third Party Advisory
https://lists.debian.org/debian-lts-announce/2022/09/msg00008.html Mailing List Third Party Advisory
Configurations

Configuration 1

cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
Information

Published : 2021-03-23 08:15

Updated : 2022-09-30 07:48

NVD link : CVE-2021-3392

Mitre link : CVE-2021-3392

Products Affected
No products.
CWE
CWE-416