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CVE-2021-3392
Good to know:
Date: March 23, 2021
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.
Language: C
Severity Score
Related Resources (10)
Severity Score
Weakness Type (CWE)
Use After Free
CWE-416Top Fix
CVSS v3.1
Base Score: |
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---|---|
Attack Vector (AV): | LOCAL |
Attack Complexity (AC): | LOW |
Privileges Required (PR): | HIGH |
User Interaction (UI): | NONE |
Scope (S): | CHANGED |
Confidentiality (C): | NONE |
Integrity (I): | NONE |
Availability (A): | LOW |
CVSS v2
Base Score: |
|
---|---|
Access Vector (AV): | LOCAL |
Access Complexity (AC): | LOW |
Authentication (AU): | NONE |
Confidentiality (C): | NONE |
Integrity (I): | NONE |
Availability (A): | PARTIAL |
Additional information: |