CVE-2022-3872
First published: Mon Nov 07 2022(Updated: )
An off-by-one read/write issue was found in the SDHCI device of QEMU. It occurs when reading/writing the Buffer Data Port Register in sdhci_read_dataport and sdhci_write_dataport, respectively, if data_count == block_size. A malicious guest could use this flaw to crash the QEMU process on the host, resulting in a denial of service condition.
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| QEMU qemu | <7.1.0 | |
| QEMU qemu | =7.1.0 | |
| QEMU qemu | =7.1.0-rc0 | |
| QEMU qemu | =7.1.0-rc1 | |
| QEMU qemu | =7.1.0-rc2 | |
| QEMU qemu | =7.1.0-rc3 | |
| QEMU qemu | =7.1.0-rc4 |
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Reference Links
Frequently Asked Questions
What is the vulnerability ID?
The vulnerability ID is CVE-2022-3872.
What is the severity of CVE-2022-3872?
The severity of CVE-2022-3872 is high with a score of 8.6.
How does CVE-2022-3872 affect QEMU?
CVE-2022-3872 affects QEMU version up to and excluding 7.1.0.
How can a malicious guest exploit CVE-2022-3872?
A malicious guest could exploit CVE-2022-3872 to crash the QEMU process on the host.
Where can I find more information about CVE-2022-3872?
You can find more information about CVE-2022-3872 in the references: [1](https://lists.nongnu.org/archive/html/qemu-devel/2022-11/msg01068.html), [2](https://security.netapp.com/advisory/ntap-20221215-0005/).
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- version/qemu qemu/7.1.0
- version/qemu qemu/7.1.0-rc0
- version/qemu qemu/7.1.0-rc1
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- version/qemu qemu/7.1.0-rc3
- version/qemu qemu/7.1.0-rc4