QEMU 9pfs hw/9pfs/9p-util.h openat_dir access control

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

Summaryinfo

A vulnerability was found in QEMU. It has been classified as critical. This affects the function openat_dir of the file hw/9pfs/9p-util.h of the component 9pfs. This manipulation causes access control. This vulnerability is tracked as CVE-2023-2861. No exploit exists. To fix this issue, it is recommended to deploy a patch.

Detailsinfo

A vulnerability classified as critical was found in QEMU (Virtualization Software) (unknown version). Affected by this vulnerability is the function openat_dir of the file hw/9pfs/9p-util.h of the component 9pfs. The manipulation with an unknown input leads to a access control vulnerability. The CWE definition for the vulnerability is CWE-284. The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. As an impact it is known to affect confidentiality, integrity, and availability.

The weakness was disclosed 07/03/2023. It is possible to read the advisory at bugzilla.redhat.com. This vulnerability is known as CVE-2023-2861 since 05/24/2023. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1068 according to MITRE ATT&CK.

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.

Applying the patch f6b0de53fb87ddefed348a39284c8e2f28dc4eda is able to eliminate this problem. The bugfix is ready for download at gitlab.com.

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

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: Access control
CWE: CWE-284 / CWE-266
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: Patch
Status: 🔍

0-Day Time: 🔍

Patch: f6b0de53fb87ddefed348a39284c8e2f28dc4eda

Timelineinfo

05/24/2023 🔍
07/03/2023 +40 days 🔍
07/03/2023 +0 days 🔍
10/25/2024 +480 days 🔍

Sourcesinfo

Product: qemu.org

Advisory: bugzilla.redhat.com
Status: Confirmed

CVE: CVE-2023-2861 (🔍)
GCVE (CVE): GCVE-0-2023-2861
GCVE (VulDB): GCVE-100-232867

Entryinfo

Created: 07/03/2023 11:04
Updated: 10/25/2024 06:28
Changes: 07/03/2023 11:04 (41), 10/25/2024 06:28 (17)
Complete: 🔍
Cache ID: 216::103

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

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