QEMU up to 6.x USB EHCI Controller Emulation use after free

CVSS Meta Temp Score
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CTI Interest Score
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5.5$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic was found in QEMU up to 6.x. The affected element is an unknown function of the component USB EHCI Controller Emulation. Such manipulation leads to use after free. This vulnerability is uniquely identified as CVE-2021-3750. No exploit exists. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in QEMU up to 6.x (Virtualization Software) and classified as problematic. Affected by this issue is an unknown function of the component USB EHCI Controller Emulation. The manipulation with an unknown input leads to a use after free vulnerability. Using CWE to declare the problem leads to CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. Impacted is availability.

The weakness was disclosed 05/03/2022 as 541. The advisory is available at gitlab.com. This vulnerability is handled as CVE-2021-3750 since 08/30/2021. The technical details are unknown and an exploit is not available.

The vulnerability scanner Nessus provides a plugin with the ID 209571 (Oracle Linux 8 : virt:kvm_utils3 (ELSA-2024-12792)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 7.0.0 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (209571). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.7
VulDB Meta Temp Score: 5.5

VulDB Base Score: 5.7
VulDB Temp Score: 5.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Use after free
CWE: CWE-416 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Partially

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 209571
Nessus Name: Oracle Linux 8 : virt:kvm_utils3 (ELSA-2024-12792)

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: QEMU 7.0.0

Timelineinfo

08/30/2021 🔍
05/03/2022 +246 days 🔍
05/03/2022 +0 days 🔍
10/25/2024 +906 days 🔍

Sourcesinfo

Product: qemu.org

Advisory: 541
Status: Confirmed

CVE: CVE-2021-3750 (🔍)
GCVE (CVE): GCVE-0-2021-3750
GCVE (VulDB): GCVE-100-198842

Entryinfo

Created: 05/03/2022 06:29
Updated: 10/25/2024 05:47
Changes: 05/03/2022 06:29 (40), 05/05/2022 09:16 (1), 05/05/2022 09:19 (1), 10/25/2024 05:47 (16)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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