CVE-2020-25625
published 2020-09-25CVE-2020-25625: hw/usb/hcd-ohci.c in QEMU 5.0.0 has an infinite loop when a TD list has a loop.
PriorityP417medium5.3CVSS 3.1
AVLACHPRHUINSCCNINAH
EPSS
0.44%
36.1th percentile
hw/usb/hcd-ohci.c in QEMU 5.0.0 has an infinite loop when a TD list has a loop.
Affected
12 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | debian_linux | — | — |
| debian | debian_linux | — | — |
| debian | qemu | < qemu 1:5.2+dfsg-1 (bookworm) | qemu 1:5.2+dfsg-1 (bookworm) |
| qemu | qemu | — | — |
| qemu | qemu | >= 0 < 1:5.2+dfsg-1 | 1:5.2+dfsg-1 |
| qemu | qemu | >= 0 < 1:5.2+dfsg-1 | 1:5.2+dfsg-1 |
| qemu | qemu | >= 0 < 1:5.2+dfsg-1 | 1:5.2+dfsg-1 |
| qemu | qemu | >= 0 < 1:5.2+dfsg-1 | 1:5.2+dfsg-1 |
| qemu | qemu | >= 0 < 1:2.5+dfsg-5ubuntu10.48 | 1:2.5+dfsg-5ubuntu10.48 |
| qemu | qemu | >= 0 < 1:2.11+dfsg-1ubuntu7.34 | 1:2.11+dfsg-1ubuntu7.34 |
| qemu | qemu | >= 0 < 1:4.2-3ubuntu6.10 | 1:4.2-3ubuntu6.10 |
| ubuntu | qemu | — | — |
CVSS provenance
nvdv3.15.3MEDIUMCVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:N/I:N/A:H
nvdv2.04.7MEDIUMAV:L/AC:M/Au:N/C:N/I:N/A:C
osv6.3MEDIUM
vendor_ubuntu6.3MEDIUM
vendor_debian5.3MEDIUM
vendor_redhat5.3MEDIUM
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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 vulnerabilities
vendor_ubuntu·2020-11-30·CVSS 6.3
CVE-2020-25624 [MEDIUM] QEMU vulnerabilities
Title: QEMU vulnerabilities
Summary: Several security issues were fixed in QEMU.
Alexander Bulekov discovered that QEMU incorrectly handled SDHCI device
emulation. An attacker inside the guest could use this issue to cause QEMU
to crash, resulting in a denial of service, or possibly execute arbitrary
code on the host. In the default installation, when QEMU is used with
libvirt, attackers would be isolated by the libvirt AppArmor profile.
(CVE-2020-17380)
Sergej Schumilo, Cornelius Aschermann, and Simon Wrner discovered that QEMU
incorrectly handled USB device emulation. An attacker inside the guest
could use this issue to cause QEMU to crash, resulting in a denial of
service. (CVE-2020-25084)
Sergej Schumilo, Cornelius Aschermann, and Simon Wrner discovered that QEMU
incorrectly handle
Red Hat
QEMU: usb: hcd-ohci: infinite loop issue while processing transfer descriptors
vendor_redhat·2020-09-11·CVSS 5.3
CVE-2020-25625 [MEDIUM] CWE-835 QEMU: usb: hcd-ohci: infinite loop issue while processing transfer descriptors
QEMU: usb: hcd-ohci: infinite loop issue while processing transfer descriptors
hw/usb/hcd-ohci.c in QEMU 5.0.0 has an infinite loop when a TD list has a loop.
An infinite loop flaw was found in the USB OHCI controller emulator of QEMU. This flaw occurs while servicing OHCI isochronous transfer descriptors (TD) in the ohci_service_iso_td routine, as it retires a TD if it has passed its time frame. It does not check if the TD was already processed and holds an error code in TD_CC. This issue may happen if the TD list has a loop. This flaw allows a guest user or process to consume CPU cycles on the host, resulting in a denial of service.
Package: kvm (Red Hat Enterprise Linux 5) - Not affected
Package: xen (Red Hat Enterprise Linux 5) - Not affected
Package: qemu-kvm (Red Hat Enterprise
Debian
CVE-2020-25625: qemu - hw/usb/hcd-ohci.c in QEMU 5.0.0 has an infinite loop when a TD list has a loop.
vendor_debian·2020·CVSS 5.3
CVE-2020-25625 [MEDIUM] CVE-2020-25625: qemu - hw/usb/hcd-ohci.c in QEMU 5.0.0 has an infinite loop when a TD list has a loop.
hw/usb/hcd-ohci.c in QEMU 5.0.0 has an infinite loop when a TD list has a loop.
Scope: local
bookworm: resolved (fixed in 1:5.2+dfsg-1)
bullseye: resolved (fixed in 1:5.2+dfsg-1)
forky: resolved (fixed in 1:5.2+dfsg-1)
sid: resolved (fixed in 1:5.2+dfsg-1)
trixie: resolved (fixed in 1:5.2+dfsg-1)
GHSA
GHSA-pf4f-4m5g-p5w2: hw/usb/hcd-ohci
ghsa_unreviewed·2022-05-24
CVE-2020-25625 [MEDIUM] CWE-835 GHSA-pf4f-4m5g-p5w2: hw/usb/hcd-ohci
hw/usb/hcd-ohci.c in QEMU 5.0.0 has an infinite loop when a TD list has a loop.
OSV
qemu vulnerabilities
osv·2020-11-30·CVSS 6.3
CVE-2020-17380 [MEDIUM] qemu vulnerabilities
qemu vulnerabilities
Alexander Bulekov discovered that QEMU incorrectly handled SDHCI device
emulation. An attacker inside the guest could use this issue to cause QEMU
to crash, resulting in a denial of service, or possibly execute arbitrary
code on the host. In the default installation, when QEMU is used with
libvirt, attackers would be isolated by the libvirt AppArmor profile.
(CVE-2020-17380)
Sergej Schumilo, Cornelius Aschermann, and Simon Wrner discovered that QEMU
incorrectly handled USB device emulation. An attacker inside the guest
could use this issue to cause QEMU to crash, resulting in a denial of
service. (CVE-2020-25084)
Sergej Schumilo, Cornelius Aschermann, and Simon Wrner discovered that QEMU
incorrectly handled SDHCI device emulation. An attacker inside the guest
could
OSV
CVE-2020-25625: hw/usb/hcd-ohci
osv·2020-09-25·CVSS 5.3
CVE-2020-25625 [MEDIUM] CVE-2020-25625: hw/usb/hcd-ohci
hw/usb/hcd-ohci.c in QEMU 5.0.0 has an infinite loop when a TD list has a loop.
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2020-25625 qemu: usb: hcd-ohci: infinite loop issue while processing transfer descriptors [fedora-all]
bugzilla·2020-09-17·CVSS 5.3
CVE-2020-25625 [MEDIUM] CVE-2020-25625 qemu: usb: hcd-ohci: infinite loop issue while processing transfer descriptors [fedora-all]
CVE-2020-25625 qemu: usb: hcd-ohci: infinite loop issue while processing transfer descriptors [fedora-all]
This is an automatically created tracking bug! It was created to ensure
that one or more security vulnerabilities are fixed in affected versions
of fedora-all.
For comments that are specific to the vulnerability please use bugs filed
against the "Security Response" product referenced in the "Blocks" field.
For more information see:
http://fedoraproject.org/wiki/Security/TrackingBugs
When submitting as an update, use the fedpkg template provided in the next
comment(s). This will include the bug IDs of this tracking bug as well as
the relevant top-level CVE bugs.
Please also mention the CVE IDs being fixed in the RPM changelog and the
fedpkg commit message.
NOTE: this issue affect
Bugzilla
CVE-2020-25625 QEMU: usb: hcd-ohci: infinite loop issue while processing transfer descriptors
bugzilla·2020-09-17·CVSS 5.3
CVE-2020-25625 [MEDIUM] CVE-2020-25625 QEMU: usb: hcd-ohci: infinite loop issue while processing transfer descriptors
CVE-2020-25625 QEMU: usb: hcd-ohci: infinite loop issue while processing transfer descriptors
An infinite loop issue was found in the USB OHCI controller emulator of QEMU. It could occur while servicing OHCI isochronous transfer descriptors (TD) in ohci_service_iso_td routine, as it retires a TD if it has passed its time frame. While do so it does not check if the TD was already processed ones and holds an error code in TD_CC. It may happen if the TD list has a loop. A guest user/process may use this flaw to consume cpu cycles on the host resulting in DoS scenario.
Upstream patch:
-> https://lists.nongnu.org/archive/html/qemu-devel/2020-09/msg05905.html
Reference:
-> https://www.openwall.com/lists/oss-security/2020/09/17/1
Discussion:
Created qemu tracking bugs for this issue:
Affect
Bugzilla
CVE-2020-25625 xen: QEMU: usb: hcd-ohci: infinite loop issue while processing transfer descriptors [fedora-all]
bugzilla·2020-09-17·CVSS 5.3
CVE-2020-25625 [MEDIUM] CVE-2020-25625 xen: QEMU: usb: hcd-ohci: infinite loop issue while processing transfer descriptors [fedora-all]
CVE-2020-25625 xen: QEMU: usb: hcd-ohci: infinite loop issue while processing transfer descriptors [fedora-all]
This is an automatically created tracking bug! It was created to ensure
that one or more security vulnerabilities are fixed in affected versions
of fedora-all.
For comments that are specific to the vulnerability please use bugs filed
against the "Security Response" product referenced in the "Blocks" field.
For more information see:
http://fedoraproject.org/wiki/Security/TrackingBugs
When submitting as an update, use the fedpkg template provided in the next
comment(s). This will include the bug IDs of this tracking bug as well as
the relevant top-level CVE bugs.
Please also mention the CVE IDs being fixed in the RPM changelog and the
fedpkg commit message.
NOTE: this issue a
http://www.openwall.com/lists/oss-security/2020/09/17/1https://lists.debian.org/debian-lts-announce/2020/11/msg00047.htmlhttps://lists.debian.org/debian-lts-announce/2022/09/msg00008.htmlhttps://lists.nongnu.org/archive/html/qemu-devel/2020-09/msg05905.htmlhttps://security.netapp.com/advisory/ntap-20201009-0005/http://www.openwall.com/lists/oss-security/2020/09/17/1https://lists.debian.org/debian-lts-announce/2020/11/msg00047.htmlhttps://lists.debian.org/debian-lts-announce/2022/09/msg00008.htmlhttps://lists.nongnu.org/archive/html/qemu-devel/2020-09/msg05905.htmlhttps://security.netapp.com/advisory/ntap-20201009-0005/
2020-09-25
Published