Linux Kernel up to 5.15.23/5.16.9 ima asymmetric_verify denial of service

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

Summaryinfo

A vulnerability was found in Linux Kernel up to 5.15.23/5.16.9 and classified as critical. This issue affects the function asymmetric_verify of the component ima. Executing a manipulation can lead to denial of service. This vulnerability is registered as CVE-2022-48831. No exploit is available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability has been found in Linux Kernel up to 5.15.23/5.16.9 and classified as critical. This vulnerability affects the function asymmetric_verify of the component ima. The manipulation with an unknown input leads to a denial of service vulnerability. The CWE definition for the vulnerability is CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. As an impact it is known to affect availability. CVE summarizes:

In the Linux kernel, the following vulnerability has been resolved: ima: fix reference leak in asymmetric_verify() Don't leak a reference to the key if its algorithm is unknown.

The advisory is shared for download at git.kernel.org. This vulnerability was named CVE-2022-48831 since 07/16/2024. There are known technical details, but no exploit is available.

Upgrading to version 5.15.24 or 5.16.10 eliminates this vulnerability. Applying the patch 0838d6d68182/89f586d3398f/926fd9f23b27 is able to eliminate this problem. The bugfix is ready for download at git.kernel.org. The best possible mitigation is suggested to be upgrading to the latest version.

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Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.6
VulDB Meta Temp Score: 5.5

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

NVD Base Score: 5.5
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Denial of service
CWE: CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Partially

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: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Kernel 5.15.24/5.16.10
Patch: 0838d6d68182/89f586d3398f/926fd9f23b27

Timelineinfo

07/16/2024 🔍
07/16/2024 +0 days 🔍
07/16/2024 +0 days 🔍
09/25/2025 +436 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2022-48831 (🔍)
GCVE (CVE): GCVE-0-2022-48831
GCVE (VulDB): GCVE-100-271660

Entryinfo

Created: 07/16/2024 17:20
Updated: 09/25/2025 22:24
Changes: 07/16/2024 17:20 (58), 09/25/2025 22:24 (11)
Complete: 🔍
Cache ID: 216::103

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