QEMU hcd-dwc2 USB Host Controller Emulation hw/usb/hcd-dwc2.c dwc2_handle_packet divide by zero
CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
3.4 | $0-$5k | 0.00 |
A vulnerability, which was classified as problematic, was found in QEMU (Virtualization Software) (the affected version is unknown). Affected is the function dwc2_handle_packet
of the file hw/usb/hcd-dwc2.c of the component hcd-dwc2 USB Host Controller Emulation. The manipulation with an unknown input leads to a divide by zero vulnerability. CWE is classifying the issue as CWE-369. The product divides a value by zero. This is going to have an impact on availability.
The weakness was published 06/02/2021. The advisory is available at bugzilla.redhat.com. This vulnerability is traded as CVE-2020-27661. Technical details are known, but there is no available exploit.
Applying a patch is able to eliminate this problem. The bugfix is ready for download at git.qemu.org.
Product
Type
Name
License
CPE 2.3
CPE 2.2
CVSSv4
VulDB CVSS-B Score: 🔍VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 3.5VulDB Meta Temp Score: 3.4
VulDB Base Score: 3.5
VulDB Temp Score: 3.4
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv2
AV | AC | Au | C | I | A |
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💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
---|---|---|---|---|---|
unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
Exploiting
Class: Divide by zeroCWE: CWE-369 / CWE-404
ATT&CK: Unknown
Local: No
Remote: Partially
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
0-Day | unlock | unlock | unlock | unlock |
---|---|---|---|---|
Today | unlock | unlock | unlock | unlock |
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: PatchStatus: 🔍
0-Day Time: 🔍
Patch: git.qemu.org
Timeline
10/22/2020 🔍06/02/2021 🔍
06/02/2021 🔍
06/05/2021 🔍
Sources
Product: qemu.orgAdvisory: bugzilla.redhat.com
Status: Confirmed
CVE: CVE-2020-27661 (🔍)
Entry
Created: 06/02/2021 22:39Updated: 06/05/2021 15:06
Changes: 06/02/2021 22:39 (36), 06/02/2021 22:40 (4), 06/05/2021 15:06 (2)
Complete: 🔍
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