QEMU up to 6.1.x UAS Device Emulator data3/status3 out-of-bounds write

CVSS Meta Temp Score
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CTI Interest Score
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5.3$0-$5k0.00

Summaryinfo

A vulnerability classified as critical has been found in QEMU up to 6.1.x. Affected by this vulnerability is an unknown functionality of the component UAS Device Emulator. Performing a manipulation of the argument data3/status3 results in out-of-bounds write. This vulnerability is reported as CVE-2021-3713. No exploit exists. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical has been found in QEMU up to 6.1.x (Virtualization Software). This affects some unknown processing of the component UAS Device Emulator. The manipulation of the argument data3/status3 with an unknown input leads to a out-of-bounds write vulnerability. CWE is classifying the issue as CWE-787. The product writes data past the end, or before the beginning, of the intended buffer. This is going to have an impact on confidentiality, integrity, and availability.

The weakness was disclosed 08/25/2021. It is possible to read the advisory at bugzilla.redhat.com. This vulnerability is uniquely identified as CVE-2021-3713. Technical details of the vulnerability are known, but there is no available exploit.

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 6.2.0-rc0 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (209571). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.3

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
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: Out-of-bounds write
CWE: CWE-787 / 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 6.2.0-rc0

Timelineinfo

08/17/2021 🔍
08/25/2021 +8 days 🔍
08/25/2021 +0 days 🔍
10/25/2024 +1157 days 🔍

Sourcesinfo

Product: qemu.org

Advisory: bugzilla.redhat.com
Status: Confirmed

CVE: CVE-2021-3713 (🔍)
GCVE (CVE): GCVE-0-2021-3713
GCVE (VulDB): GCVE-100-181467

Entryinfo

Created: 08/25/2021 23:53
Updated: 10/25/2024 20:36
Changes: 08/25/2021 23:53 (39), 08/29/2021 09:59 (2), 10/25/2024 20:36 (16)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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