CVE-2021-3930

Description

An off-by-one error was found in the SCSI device emulation in QEMU. It could occur while processing MODE SELECT commands in mode_sense_page() if the 'page' argument was set to MODE_PAGE_ALLS (0x3f). A malicious guest could use this flaw to potentially crash QEMU, resulting in a denial of service condition.

Category

6.5
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.03%
Vendor Advisory gentoo.org Vendor Advisory redhat.com
Affected: n/a QEMU
Published at:
Updated at:

References

Link Tags
https://bugzilla.redhat.com/show_bug.cgi?id=2020588 issue tracking patch vendor advisory
https://security.netapp.com/advisory/ntap-20220225-0007/ third party advisory
https://lists.debian.org/debian-lts-announce/2022/04/msg00002.html third party advisory mailing list
https://security.gentoo.org/glsa/202208-27 third party advisory vendor advisory
https://lists.debian.org/debian-lts-announce/2022/09/msg00008.html third party advisory mailing list

Frequently Asked Questions

What is the severity of CVE-2021-3930?
CVE-2021-3930 has been scored as a medium severity vulnerability.
How to fix CVE-2021-3930?
To fix CVE-2021-3930, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-3930 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-3930 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-3930?
CVE-2021-3930 affects n/a QEMU.
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