UBUNTU-CVE-2021-3392
Advisory lineage Upstream: 1 Downstream: 1
Upstream
Downstream
Published: 23 Mar 2021, 20:15
Last modified:02 Jun 2026, 20:15
Vulnerability Summary
Overall Risk (default)
low
13/100 CVSS Score
3.2 LOW
3.1 (osv_ubuntu)
EPSS Score
No data
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected
Timeline
23 Mar 2021, 20:15
Published
Vulnerability first disclosed
02 Jun 2026, 20:15
Last Modified
Vulnerability information updated
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.
CVSS Metrics
- v3.1•LOW•Score: 3.2CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:L
Affected Systems
- ubuntu•qemu
all | < 1:2.11+dfsg-1ubuntu7.37 | < 1:4.2-3ubuntu6.17