CVE-2023-42467
published 2023-09-11CVE-2023-42467: QEMU through 8.0.0 could trigger a division by zero in scsi_disk_reset in hw/scsi/scsi-disk.c because scsi_disk_emulate_mode_select does not prevent…
PriorityP420medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
EPSS
0.38%
30.2th percentile
QEMU through 8.0.0 could trigger a division by zero in scsi_disk_reset in hw/scsi/scsi-disk.c because scsi_disk_emulate_mode_select does not prevent s->qdev.blocksize from being 256. This stops QEMU and the guest immediately.
Affected
13 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | qemu | < qemu 1:7.2+dfsg-7+deb12u3 (bookworm) | qemu 1:7.2+dfsg-7+deb12u3 (bookworm) |
| msrc | azl3_qemu_6.2.0-18_on_azure_linux_3.0 | — | — |
| msrc | azl3_qemu_8.2.0-1_on_azure_linux_3.0 | — | — |
| msrc | azure_linux_3.0_arm | — | — |
| msrc | azure_linux_3.0_x64 | — | — |
| qemu | qemu | <= 8.0.0 | — |
| qemu | qemu | >= 0 < 1:7.2+dfsg-7+deb12u3 | 1:7.2+dfsg-7+deb12u3 |
| qemu | qemu | >= 0 < 1:8.1.1+ds-1 | 1:8.1.1+ds-1 |
| qemu | qemu | >= 0 < 1:8.1.1+ds-1 | 1:8.1.1+ds-1 |
| qemu | qemu | >= 0 < 1:4.2-3ubuntu6.28 | 1:4.2-3ubuntu6.28 |
| qemu | qemu | >= 0 < 1:4.2-3ubuntu6.29 | 1:4.2-3ubuntu6.29 |
| qemu | qemu | >= 0 < 1:6.2+dfsg-2ubuntu6.16 | 1:6.2+dfsg-2ubuntu6.16 |
| qemu | qemu | >= 0 < 1:6.2+dfsg-2ubuntu6.21 | 1:6.2+dfsg-2ubuntu6.21 |
CVSS provenance
nvdv3.15.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
osv5.5MEDIUM
vendor_debian5.5MEDIUM
vendor_msrc5.5MEDIUM
vendor_redhat5.5MEDIUM
vendor_ubuntu3.2LOW
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OSV
qemu regression
osv·2024-06-06·CVSS 3.2
CVE-2023-2861 [LOW] qemu regression
qemu regression
USN-6567-1 fixed vulnerabilities QEMU. The fix for CVE-2023-2861 was too
restrictive and introduced a behaviour change leading to a regression in
certain environments. This update fixes the problem.
Original advisory details:
Gaoning Pan and Xingwei Li discovered that QEMU incorrectly handled the
USB xHCI controller device. A privileged guest attacker could possibly use
this issue to cause QEMU to crash, leading to a denial of service. This
issue only affected Ubuntu 20.04 LTS and Ubuntu 22.04 LTS. (CVE-2020-14394)
It was discovered that QEMU incorrectly handled the TCG Accelerator. A
local attacker could use this issue to cause QEMU to crash, leading to a
denial of service, or possibly execute arbitrary code and esclate
privileges. This issue only affected Ubuntu 20.04
OSV
qemu vulnerabilities
osv·2024-01-08·CVSS 3.2
CVE-2020-14394 [LOW] qemu vulnerabilities
qemu vulnerabilities
Gaoning Pan and Xingwei Li discovered that QEMU incorrectly handled the
USB xHCI controller device. A privileged guest attacker could possibly use
this issue to cause QEMU to crash, leading to a denial of service. This
issue only affected Ubuntu 20.04 LTS and Ubuntu 22.04 LTS. (CVE-2020-14394)
It was discovered that QEMU incorrectly handled the TCG Accelerator. A
local attacker could use this issue to cause QEMU to crash, leading to a
denial of service, or possibly execute arbitrary code and esclate
privileges. This issue only affected Ubuntu 20.04 LTS. (CVE-2020-24165)
It was discovered that QEMU incorrectly handled the Intel HD audio device.
A malicious guest attacker could use this issue to cause QEMU to crash,
leading to a denial of service. This issue only affe
OSV
CVE-2023-42467: QEMU through 8
osv·2023-09-11·CVSS 5.5
CVE-2023-42467 [MEDIUM] CVE-2023-42467: QEMU through 8
QEMU through 8.0.0 could trigger a division by zero in scsi_disk_reset in hw/scsi/scsi-disk.c because scsi_disk_emulate_mode_select does not prevent s->qdev.blocksize from being 256. This stops QEMU and the guest immediately.
GHSA
GHSA-q76v-8f8c-4c2j: QEMU through 8
ghsa_unreviewed·2023-09-11
CVE-2023-42467 [MEDIUM] CWE-369 GHSA-q76v-8f8c-4c2j: QEMU through 8
QEMU through 8.0.0 could trigger a division by zero in scsi_disk_reset in hw/scsi/scsi-disk.c because scsi_disk_emulate_mode_select does not prevent s->qdev.blocksize from being 256. This stops QEMU and the guest immediately.
Ubuntu
QEMU regression
vendor_ubuntu·2024-06-06·CVSS 3.2
CVE-2023-2861 [LOW] QEMU regression
Title: QEMU regression
Summary: USN-6567-1 introduced a regression in QEMU.
USN-6567-1 fixed vulnerabilities QEMU. The fix for CVE-2023-2861 was too
restrictive and introduced a behaviour change leading to a regression in
certain environments. This update fixes the problem.
Original advisory details:
Gaoning Pan and Xingwei Li discovered that QEMU incorrectly handled the
USB xHCI controller device. A privileged guest attacker could possibly use
this issue to cause QEMU to crash, leading to a denial of service. This
issue only affected Ubuntu 20.04 LTS and Ubuntu 22.04 LTS. (CVE-2020-14394)
It was discovered that QEMU incorrectly handled the TCG Accelerator. A
local attacker could use this issue to cause QEMU to crash, leading to a
denial of service, or possibly execute arbitrary code
Ubuntu
QEMU vulnerabilities
vendor_ubuntu·2024-01-08·CVSS 3.2
CVE-2023-1544 [LOW] QEMU vulnerabilities
Title: QEMU vulnerabilities
Summary: Several security issues were fixed in QEMU.
Gaoning Pan and Xingwei Li discovered that QEMU incorrectly handled the
USB xHCI controller device. A privileged guest attacker could possibly use
this issue to cause QEMU to crash, leading to a denial of service. This
issue only affected Ubuntu 20.04 LTS and Ubuntu 22.04 LTS. (CVE-2020-14394)
It was discovered that QEMU incorrectly handled the TCG Accelerator. A
local attacker could use this issue to cause QEMU to crash, leading to a
denial of service, or possibly execute arbitrary code and esclate
privileges. This issue only affected Ubuntu 20.04 LTS. (CVE-2020-24165)
It was discovered that QEMU incorrectly handled the Intel HD audio device.
A malicious guest attacker could use this issue to cause QEMU t
Microsoft
QEMU through 8.0.0 could trigger a division by zero in scsi_disk_reset in hw/scsi/scsi-disk.c because scsi_disk_emulate_mode_select does not prevent s->qdev.blocksize from being 256. This stops QEMU a
vendor_msrc·2023-09-12·CVSS 5.5
CVE-2023-42467 [MEDIUM] CWE-369 QEMU through 8.0.0 could trigger a division by zero in scsi_disk_reset in hw/scsi/scsi-disk.c because scsi_disk_emulate_mode_select does not prevent s->qdev.blocksize from being 256. This stops QEMU a
QEMU through 8.0.0 could trigger a division by zero in scsi_disk_reset in hw/scsi/scsi-disk.c because scsi_disk_emulate_mode_select does not prevent s->qdev.blocksize from being 256. This stops QEMU and the guest immediately.
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 information. If impact to additional products is ident
Red Hat
QEMU: am53c974: denial of service due to division by zero
vendor_redhat·2023-09-11·CVSS 5.5
CVE-2023-42467 [MEDIUM] CWE-369 QEMU: am53c974: denial of service due to division by zero
QEMU: am53c974: denial of service due to division by zero
QEMU through 8.0.0 could trigger a division by zero in scsi_disk_reset in hw/scsi/scsi-disk.c because scsi_disk_emulate_mode_select does not prevent s->qdev.blocksize from being 256. This stops QEMU and the guest immediately.
A denial of service vulnerability was found in the qemu package. A division by zero in the scsi_disk_reset function can cause QEMU and the guest to stop immediately.
Statement: Triggering this bug requires kernel or root privileges in the guest VM because it requires direct hardware access. Anyone who has these privileges could also just perform a regular shutdown of the VM, with only a very slightly different result.
Package: qemu-kvm (Red Hat Enterprise Linux 6) - Not affected
Package: qemu-kvm (Red Hat
Debian
CVE-2023-42467: qemu - QEMU through 8.0.0 could trigger a division by zero in scsi_disk_reset in hw/scs...
vendor_debian·2023·CVSS 5.5
CVE-2023-42467 [MEDIUM] CVE-2023-42467: qemu - QEMU through 8.0.0 could trigger a division by zero in scsi_disk_reset in hw/scs...
QEMU through 8.0.0 could trigger a division by zero in scsi_disk_reset in hw/scsi/scsi-disk.c because scsi_disk_emulate_mode_select does not prevent s->qdev.blocksize from being 256. This stops QEMU and the guest immediately.
Scope: local
bookworm: resolved (fixed in 1:7.2+dfsg-7+deb12u3)
bullseye: resolved
forky: resolved (fixed in 1:8.1.1+ds-1)
sid: resolved (fixed in 1:8.1.1+ds-1)
trixie: resolved (fixed in 1:8.1.1+ds-1)
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
https://gitlab.com/qemu-project/qemu/-/commit/7cfcc79b0ab800959716738aff9419f53fc68c9chttps://gitlab.com/qemu-project/qemu/-/issues/1813https://security.netapp.com/advisory/ntap-20231103-0005/https://gitlab.com/qemu-project/qemu/-/commit/7cfcc79b0ab800959716738aff9419f53fc68c9chttps://gitlab.com/qemu-project/qemu/-/issues/1813https://security.netapp.com/advisory/ntap-20231103-0005/
2023-09-11
Published