VDB-276610 · CVE-2024-42416 · GCVE-0-2024-42416

FreeBSD Kernel ctl_report_supported_opcodes improper filtering of special elements

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8.0	$0-$5k	0.00

Summaryinfo

A vulnerability described as critical has been identified in FreeBSD. This issue affects the function ctl_report_supported_opcodes of the component Kernel. Executing a manipulation can lead to improper filtering of special elements. This vulnerability is registered as CVE-2024-42416. The attack needs to be launched locally. No exploit is available. A patch should be applied to remediate this issue.

Detailsinfo

A vulnerability has been found in FreeBSD (unknown version) and classified as critical. This vulnerability affects the function ctl_report_supported_opcodes of the component Kernel. The manipulation with an unknown input leads to a improper filtering of special elements vulnerability. The CWE definition for the vulnerability is CWE-790. The product receives data from an upstream component, but does not filter or incorrectly filters special elements before sending it to a downstream component. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

The ctl_report_supported_opcodes function did not sufficiently validate a field provided by userspace, allowing an arbitrary write to a limited amount of kernel help memory. Malicious software running in a guest VM that exposes virtio_scsi can exploit the vulnerabilities to achieve code execution on the host in the bhyve userspace process, which typically runs as root. Note that bhyve runs in a Capsicum sandbox, so malicious code is constrained by the capabilities available to the bhyve process. A malicious iSCSI initiator could achieve remote code execution on the iSCSI target host.

The weakness was published by Synacktiv. The advisory is available at security.freebsd.org. This vulnerability was named CVE-2024-42416 since 08/27/2024. The exploitation appears to be difficult. Local access is required to approach this attack. Technical details are known, but there is no available exploit.

Applying a patch is able to eliminate this problem.

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

Productinfo

Type

Operating System

Name

FreeBSD

License

open-source

Website

Product: https://www.freebsd.org/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.1
VulDB Meta Temp Score: 8.0

VulDB Base Score: 7.0
VulDB Temp Score: 6.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.8
NVD Vector: 🔍

CNA Base Score: 8.4
CNA Vector (freebsd): 🔍

CVSSv2info

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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Improper filtering of special elements
CWE: CWE-790 / CWE-184 / CWE-183
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Timelineinfo

08/27/2024 🔍
09/05/2024 +9 days 🔍
09/05/2024 +0 days 🔍
09/06/2024 +1 days 🔍

Sourcesinfo

Product: freebsd.org

Advisory: security.freebsd.org
Researcher: Synacktiv
Status: Confirmed

CVE: CVE-2024-42416 (🔍)
GCVE (CVE): GCVE-0-2024-42416
GCVE (VulDB): GCVE-100-276610

Entryinfo

Created: 09/05/2024 06:42
Updated: 09/06/2024 12:28
Changes: 09/05/2024 06:42 (54), 09/06/2024 12:28 (21)
Complete: 🔍
Cache ID: 216::103