Linux Kernel Amateur Radio use after free

CVSS Meta Temp Score
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CTI Interest Score
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6.8$0-$5k0.00

Summaryinfo

A vulnerability identified as critical has been detected in Linux Kernel. The impacted element is an unknown function of the component Amateur Radio Handler. Performing a manipulation results in use after free. This vulnerability is cataloged as CVE-2022-1199. It is possible to initiate the attack remotely. There is no exploit available. It is suggested to install a patch to address this issue.

Detailsinfo

A vulnerability, which was classified as critical, was found in Linux Kernel (Operating System) (affected version not known). This affects some unknown functionality of the component Amateur Radio Handler. The manipulation with an unknown input leads to a use after free vulnerability. CWE is classifying the issue as CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. This is going to have an impact on availability. The summary by CVE is:

A flaw was found in the Linux kernel. This flaw allows an attacker to crash the Linux kernel by simulating amateur radio from the user space, resulting in a null-ptr-deref vulnerability and a use-after-free vulnerability.

The weakness was shared 08/29/2022. The advisory is shared at bugzilla.redhat.com. This vulnerability is uniquely identified as CVE-2022-1199 since 03/31/2022. Neither technical details nor an exploit are publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 236670 (Alibaba Cloud Linux 3 : 0125: cloud-kernel bugfix, enhancement and (ALINUX3-SA-2022:0125)), which helps to determine the existence of the flaw in a target environment.

Applying the patch 4e0f718daf97d47cf7dec122da1be970f145c809 is able to eliminate this problem. The bugfix is ready for download at github.com.

The vulnerability is also documented in the databases at Tenable (236670) and EUVD (EUVD-2022-24539). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.0
VulDB Meta Temp Score: 6.8

VulDB Base Score: 6.5
VulDB Temp Score: 6.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

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: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 236670
Nessus Name: Alibaba Cloud Linux 3 : 0125: cloud-kernel bugfix, enhancement and (ALINUX3-SA-2022:0125)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: 4e0f718daf97d47cf7dec122da1be970f145c809

Timelineinfo

03/31/2022 🔍
08/29/2022 +151 days 🔍
08/29/2022 +0 days 🔍
04/04/2026 +1314 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: 4e0f718daf97d47cf7dec122da1be970f145c809
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2022-1199 (🔍)
GCVE (CVE): GCVE-0-2022-1199
GCVE (VulDB): GCVE-100-207489
EUVD: 🔍

Entryinfo

Created: 08/29/2022 18:37
Updated: 04/04/2026 22:09
Changes: 08/29/2022 18:37 (42), 10/09/2022 10:19 (1), 10/09/2022 10:24 (11), 04/23/2025 21:51 (15), 05/18/2025 18:44 (2), 04/04/2026 22:09 (1)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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