CVE-2020-14394
published 2022-08-17CVE-2020-14394: An infinite loop flaw was found in the USB xHCI controller emulation of QEMU while computing the length of the Transfer Request Block (TRB) Ring. This flaw…
PriorityP410low3.2CVSS 3.1
AVLACLPRHUINSCCNINAL
EPSS
0.36%
28.6th percentile
An infinite loop flaw was found in the USB xHCI controller emulation of QEMU while computing the length of the Transfer Request Block (TRB) Ring. This flaw allows a privileged guest user to hang the QEMU process on the host, resulting in a denial of service.
Affected
22 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | qemu | < qemu 1:7.1+dfsg-1 (bookworm) | qemu 1:7.1+dfsg-1 (bookworm) |
| fedoraproject | extra_packages_for_enterprise_linux | — | — |
| fedoraproject | fedora | — | — |
| fedoraproject | fedora | — | — |
| qemu | qemu | — | — |
| qemu | qemu | — | — |
| qemu | qemu | >= 0 < 1:5.2+dfsg-11+deb11u3 | 1:5.2+dfsg-11+deb11u3 |
| qemu | qemu | >= 0 < 1:7.1+dfsg-1 | 1:7.1+dfsg-1 |
| qemu | qemu | >= 0 < 1:7.1+dfsg-1 | 1:7.1+dfsg-1 |
| qemu | qemu | >= 0 < 1:7.1+dfsg-1 | 1:7.1+dfsg-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 |
| redhat | enterprise_linux | — | — |
| redhat | enterprise_linux | — | — |
| redhat | enterprise_linux | — | — |
| redhat | enterprise_linux | — | — |
| redhat | enterprise_linux | — | — |
| redhat | openstack_platform | — | — |
| redhat | openstack_platform | — | — |
| ubuntu | qemu | — | — |
CVSS provenance
nvdv3.13.2LOWCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:L
osv3.2LOW
vendor_ubuntu3.8LOW
vendor_debian3.2LOW
vendor_redhat3.2LOW
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Ubuntu
QEMU regression
vendor_ubuntu·2026-06-28·CVSS 3.8
CVE-2020-11947 [LOW] QEMU regression
Title: QEMU regression
Summary: USN-8412-1 introduced a regression in QEMU
USN-8412-1 fixed vulnerabilities QEMU. On Ubuntu 20.04 LTS, the fix for
CVE-2024-4467 was incomplete and prevented the creation of boot volumes
from qcow2 images. This update fixes the problem.
We apologize for the inconvenience.
Original advisory details:
Felipe Franciosi, Raphael Norwitz, and Peter Turschmid discovered that the
iSCSI block driver in QEMU incorrectly handled certain responses from an
iSCSI server. A remote attacker could possibly use this issue to cause
QEMU to crash, resulting in a denial of service, or possibly execute
arbitrary code. This issue only affected Ubuntu 14.04 LTS. (CVE-2020-1711)
It was discovered that the iSCSI block driver in QEMU incorrectly handled
certain memory operations
Ubuntu
QEMU vulnerabilities
vendor_ubuntu·2026-06-09·CVSS 3.8
CVE-2021-3416 [LOW] QEMU vulnerabilities
Title: QEMU vulnerabilities
Summary: Several security issues were fixed in QEMU.
Felipe Franciosi, Raphael Norwitz, and Peter Turschmid discovered that the
iSCSI block driver in QEMU incorrectly handled certain responses from an
iSCSI server. A remote attacker could possibly use this issue to cause QEMU
to crash, resulting in a denial of service, or possibly execute arbitrary
code. This issue only affected Ubuntu 14.04 LTS. (CVE-2020-1711)
It was discovered that the iSCSI block driver in QEMU incorrectly handled
certain memory operations, leading to a heap-based buffer over-read. An
attacker could possibly use this issue to expose sensitive information from
the host. This issue only affected Ubuntu 14.04 LTS. (CVE-2020-11947)
Ziming Zhang discovered that the SM501 display driver in QEM
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
Red Hat
QEMU: infinite loop in xhci_ring_chain_length() in hw/usb/hcd-xhci.c
vendor_redhat·2020-12-15·CVSS 3.2
CVE-2020-14394 [LOW] CWE-835 QEMU: infinite loop in xhci_ring_chain_length() in hw/usb/hcd-xhci.c
QEMU: infinite loop in xhci_ring_chain_length() in hw/usb/hcd-xhci.c
An infinite loop flaw was found in the USB xHCI controller emulation of QEMU while computing the length of the Transfer Request Block (TRB) Ring. This flaw allows a privileged guest user to hang the QEMU process on the host, resulting in a denial of service.
An infinite loop flaw was found in the USB xHCI controller emulation of QEMU while computing the length of the Transfer Request Block (TRB) Ring. This flaw allows a privileged guest user to hang the QEMU process on the host, resulting in a denial of service. The highest threat from this vulnerability is to system availability.
Statement: This flaw has been rated as having a security impact of Low, and is not currently planned to be addressed in future updates of Re
Debian
CVE-2020-14394: qemu - An infinite loop flaw was found in the USB xHCI controller emulation of QEMU whi...
vendor_debian·2020·CVSS 3.2
CVE-2020-14394 [LOW] CVE-2020-14394: qemu - An infinite loop flaw was found in the USB xHCI controller emulation of QEMU whi...
An infinite loop flaw was found in the USB xHCI controller emulation of QEMU while computing the length of the Transfer Request Block (TRB) Ring. This flaw allows a privileged guest user to hang the QEMU process on the host, resulting in a denial of service.
Scope: local
bookworm: resolved (fixed in 1:7.1+dfsg-1)
bullseye: resolved (fixed in 1:5.2+dfsg-11+deb11u3)
forky: resolved (fixed in 1:7.1+dfsg-1)
sid: resolved (fixed in 1:7.1+dfsg-1)
trixie: resolved (fixed in 1:7.1+dfsg-1)
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
GHSA
GHSA-9gg5-9c3q-7g76: An infinite loop flaw was found in the USB xHCI controller emulation of QEMU while computing the length of the Transfer Request Block (TRB) Ring
ghsa_unreviewed·2022-08-18
CVE-2020-14394 [LOW] CWE-835 GHSA-9gg5-9c3q-7g76: An infinite loop flaw was found in the USB xHCI controller emulation of QEMU while computing the length of the Transfer Request Block (TRB) Ring
An infinite loop flaw was found in the USB xHCI controller emulation of QEMU while computing the length of the Transfer Request Block (TRB) Ring. This flaw allows a privileged guest user to hang the QEMU process on the host, resulting in a denial of service.
OSV
CVE-2020-14394: An infinite loop flaw was found in the USB xHCI controller emulation of QEMU while computing the length of the Transfer Request Block (TRB) Ring
osv·2022-08-17·CVSS 3.2
CVE-2020-14394 [LOW] CVE-2020-14394: An infinite loop flaw was found in the USB xHCI controller emulation of QEMU while computing the length of the Transfer Request Block (TRB) Ring
An infinite loop flaw was found in the USB xHCI controller emulation of QEMU while computing the length of the Transfer Request Block (TRB) Ring. This flaw allows a privileged guest user to hang the QEMU process on the host, resulting in a denial of service.
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
https://bugzilla.redhat.com/show_bug.cgi?id=1908004https://gitlab.com/qemu-project/qemu/-/issues/646https://lists.debian.org/debian-lts-announce/2023/03/msg00013.htmlhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/I7J5IRXJYLELW7D43A75LOWRUE5EU54O/https://bugzilla.redhat.com/show_bug.cgi?id=1908004https://gitlab.com/qemu-project/qemu/-/issues/646https://lists.debian.org/debian-lts-announce/2023/03/msg00013.htmlhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/I7J5IRXJYLELW7D43A75LOWRUE5EU54O/
2022-08-17
Published