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CVE-2021-20255
Date: March 9, 2021
A stack overflow via an infinite recursion vulnerability was found in the eepro100 i8255x device emulator of QEMU. This issue occurs while processing controller commands due to a DMA reentry issue. This flaw allows a guest user or process to consume CPU cycles or crash the QEMU process on the host, resulting in a denial of service. The highest threat from this vulnerability is to system availability.
Language: C
Severity Score
Related Resources (11)
Severity Score
Weakness Type (CWE)
CVSS v3
| Base Score: |
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|---|---|
| Attack Vector (AV): | |
| Attack Complexity (AC): | |
| Privileges Required (PR): | |
| User Interaction (UI): | |
| Scope (S): | |
| Confidentiality (C): | NONE |
| Integrity (I): | NONE |
| Availability (A): | PARTIAL |
CVSS v2
| Base Score: |
|
|---|---|
| Access Vector (AV): | |
| Access Complexity (AC): | |
| Authentication (AU): | |
| Confidentiality (C): | HIGH |
| Integrity (I): | NONE |
| Availability (A): | NONE |
| Additional information: |