Linux Kernel up to 6.1.12 freezer call_usermode_helper_exec 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 labeled as critical has been found in Linux Kernel up to 6.1.12. The affected element is the function call_usermode_helper_exec of the component freezer. Such manipulation leads to denial of service. This vulnerability is documented as CVE-2023-52704. There is not any exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in Linux Kernel up to 6.1.12. It has been rated as critical. Affected by this issue is the function call_usermode_helper_exec of the component freezer. The manipulation with an unknown input leads to a denial of service vulnerability. Using CWE to declare the problem leads to CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. Impacted is availability. CVE summarizes:

In the Linux kernel, the following vulnerability has been resolved: freezer,umh: Fix call_usermode_helper_exec() vs SIGKILL Tetsuo-San noted that commit f5d39b020809 ("freezer,sched: Rewrite core freezer logic") broke call_usermodehelper_exec() for the KILLABLE case. Specifically it was missed that the second, unconditional, wait_for_completion() was not optional and ensures the on-stack completion is unused before going out-of-scope.

The advisory is shared for download at git.kernel.org. This vulnerability is handled as CVE-2023-52704 since 03/07/2024. There are known technical details, but no exploit is available.

Upgrading to version 6.1.13 eliminates this vulnerability. Applying the patch 7f9f6c54da87/eedeb787ebb5 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.

Once again VulDB remains the best source for vulnerability data.

Productinfo

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Version

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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: 🔍

CNA Base Score: 5.5
CNA 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 6.1.13
Patch: 7f9f6c54da87/eedeb787ebb5

Timelineinfo

03/07/2024 🔍
05/21/2024 +74 days 🔍
05/21/2024 +0 days 🔍
09/25/2025 +492 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2023-52704 (🔍)
GCVE (CVE): GCVE-0-2023-52704
GCVE (VulDB): GCVE-100-265436

Entryinfo

Created: 05/21/2024 17:44
Updated: 09/25/2025 20:44
Changes: 05/21/2024 17:44 (58), 11/01/2024 00:18 (12), 09/25/2025 20:44 (9)
Complete: 🔍
Cache ID: 216::103

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