CVE-2021-3947
published 2022-02-18CVE-2021-3947: A stack-buffer-overflow was found in QEMU in the NVME component. The flaw lies in nvme_changed_nslist() where a malicious guest controlling certain input can…
PriorityP425medium5.5CVSS 3.1
AVLACLPRLUINSUCHINAN
EPSS
0.32%
24.0th percentile
A stack-buffer-overflow was found in QEMU in the NVME component. The flaw lies in nvme_changed_nslist() where a malicious guest controlling certain input can read out of bounds memory. A malicious user could use this flaw leading to disclosure of sensitive information.
Affected
13 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | qemu | < qemu 1:6.2+dfsg-1 (bookworm) | qemu 1:6.2+dfsg-1 (bookworm) |
| msrc | cbl2_qemu_6.2.0-2_on_cbl_mariner_2.0 | — | — |
| msrc | cbl_mariner_1.0_arm | — | — |
| msrc | cbl_mariner_1.0_x64 | — | — |
| msrc | cbl_mariner_2.0_arm | — | — |
| msrc | cbl_mariner_2.0_x64 | — | — |
| msrc | cm1_qemu-kvm_4.2.0-38_on_cbl_mariner_1.0 | — | — |
| qemu | qemu | — | — |
| qemu | qemu | — | — |
| qemu | qemu | >= 0 < 1:6.2+dfsg-1 | 1:6.2+dfsg-1 |
| qemu | qemu | >= 0 < 1:6.2+dfsg-1 | 1:6.2+dfsg-1 |
| qemu | qemu | >= 0 < 1:6.2+dfsg-1 | 1:6.2+dfsg-1 |
| qemu | qemu | 6.0.0 – 6.1.0 | — |
CVSS provenance
nvdv3.15.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
nvdv2.02.1LOWAV:L/AC:L/Au:N/C:P/I:N/A:N
osv5.5MEDIUM
vendor_debian5.5MEDIUM
vendor_msrc5.5MEDIUM
vendor_redhat5.5MEDIUM
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Microsoft
A stack-buffer-overflow was found in QEMU in the NVME component. The flaw lies in nvme_changed_nslist() where a malicious guest controlling certain input can read out of bounds memory. A malicious use
vendor_msrc·2022-02-08·CVSS 5.5
CVE-2021-3947 [MEDIUM] CWE-125 A stack-buffer-overflow was found in QEMU in the NVME component. The flaw lies in nvme_changed_nslist() where a malicious guest controlling certain input can read out of bounds memory. A malicious use
A stack-buffer-overflow was found in QEMU in the NVME component. The flaw lies in nvme_changed_nslist() where a malicious guest controlling certain input can read out of bounds memory. A malicious user could use this flaw leading to disclosure of sensitive information.
FAQ: Is Azure Linux the only Microsoft product that includes this open-source library and is therefore potentially affected by this vulnerability?
One of the main benefits to our customers who choose to use the Azure Linux distro is the commitment to keep it up to date with the most recent and most secure versions of the open source libraries with which the distro is composed. Microsoft is committed to transparency in this work which is why we began publishing CSAF/VEX in October 2025. See this blog post for more informatio
Red Hat
QEMU: NVMe: out-of-bounds memory read in nvme_changed_nslist
vendor_redhat·2021-11-10·CVSS 5.5
CVE-2021-3947 [MEDIUM] CWE-125 QEMU: NVMe: out-of-bounds memory read in nvme_changed_nslist
QEMU: NVMe: out-of-bounds memory read in nvme_changed_nslist
A stack-buffer-overflow was found in QEMU in the NVME component. The flaw lies in nvme_changed_nslist() where a malicious guest controlling certain input can read out of bounds memory. A malicious user could use this flaw leading to disclosure of sensitive information.
A stack-buffer-overflow was found in QEMU in the NVME component. The flaw lies in nvme_changed_nslist() where a malicious guest controlling certain input can read out of bounds memory. A malicious user could use this flaw leading to disclosure of sensitive information.
Statement: The `qemu-kvm` packages as shipped with Red Hat Enterprise Linux are not affected by this flaw as they do not include support for NVMe emulation.
Package: qemu-kvm (Red Hat Enterprise
Debian
CVE-2021-3947: qemu - A stack-buffer-overflow was found in QEMU in the NVME component. The flaw lies i...
vendor_debian·2021·CVSS 5.5
CVE-2021-3947 [MEDIUM] CVE-2021-3947: qemu - A stack-buffer-overflow was found in QEMU in the NVME component. The flaw lies i...
A stack-buffer-overflow was found in QEMU in the NVME component. The flaw lies in nvme_changed_nslist() where a malicious guest controlling certain input can read out of bounds memory. A malicious user could use this flaw leading to disclosure of sensitive information.
Scope: local
bookworm: resolved (fixed in 1:6.2+dfsg-1)
bullseye: resolved
forky: resolved (fixed in 1:6.2+dfsg-1)
sid: resolved (fixed in 1:6.2+dfsg-1)
trixie: resolved (fixed in 1:6.2+dfsg-1)
GHSA
GHSA-435p-4r6f-2842: A stack-buffer-overflow was found in QEMU in the NVME component
ghsa_unreviewed·2022-02-19
CVE-2021-3947 [MEDIUM] CWE-125 GHSA-435p-4r6f-2842: A stack-buffer-overflow was found in QEMU in the NVME component
A stack-buffer-overflow was found in QEMU in the NVME component. The flaw lies in nvme_changed_nslist() where a malicious guest controlling certain input can read out of bounds memory. A malicious user could use this flaw leading to disclosure of sensitive information.
OSV
CVE-2021-3947: A stack-buffer-overflow was found in QEMU in the NVME component
osv·2022-02-18·CVSS 5.5
CVE-2021-3947 [MEDIUM] CVE-2021-3947: A stack-buffer-overflow was found in QEMU in the NVME component
A stack-buffer-overflow was found in QEMU in the NVME component. The flaw lies in nvme_changed_nslist() where a malicious guest controlling certain input can read out of bounds memory. A malicious user could use this flaw leading to disclosure of sensitive information.
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2022-02-18
Published