CVE-2021-20181
High
Description
A race condition flaw was found in the 9pfs server implementation of QEMU up to and including 5.2.0. This flaw allows a malicious 9p client to cause a use-after-free error, potentially escalating their privileges on the system. The highest threat from this vulnerability is to confidentiality, integrity as well as system availability.
SeverityHigh
CVSS7.5
Exploit probability—
Product
Qemu
PublishedMay 13, 2021
First seenMay 13, 2021
Weakness typeCWE-367CWE-367
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| qemu qemu | v ≤ 5.2.0 | — |
| debian debian_linux | 9.0, 10.0 | — |
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