Linux Kernel up to 6.8.9 NFSD nfsd4_encode_fattr4 initialization

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

Summaryinfo

A vulnerability classified as critical has been found in Linux Kernel up to 6.8.9. The affected element is the function nfsd4_encode_fattr4 of the component NFSD. The manipulation leads to initialization. This vulnerability is uniquely identified as CVE-2024-36958. No exploit exists. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Linux Kernel up to 6.8.9 and classified as critical. This issue affects the function nfsd4_encode_fattr4 of the component NFSD. The manipulation with an unknown input leads to a initialization vulnerability. Using CWE to declare the problem leads to CWE-665. The product does not initialize or incorrectly initializes a resource, which might leave the resource in an unexpected state when it is accessed or used. Impacted is availability. The summary by CVE is:

In the Linux kernel, the following vulnerability has been resolved: NFSD: Fix nfsd4_encode_fattr4() crasher Ensure that args.acl is initialized early. It is used in an unconditional call to kfree() on the way out of nfsd4_encode_fattr4().

The advisory is shared at git.kernel.org. The identification of this vulnerability is CVE-2024-36958 since 05/30/2024. Technical details are known, but no exploit is available.

Upgrading to version 6.8.10 eliminates this vulnerability. Applying the patch 6a7b07689af6/18180a4550d0 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

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

Exploitinginfo

Class: Initialization
CWE: CWE-665
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 6.8.10
Patch: 6a7b07689af6/18180a4550d0

Timelineinfo

05/30/2024 🔍
05/30/2024 +0 days 🔍
05/30/2024 +0 days 🔍
10/01/2025 +489 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2024-36958 (🔍)
GCVE (CVE): GCVE-0-2024-36958
GCVE (VulDB): GCVE-100-266657

Entryinfo

Created: 05/30/2024 18:59
Updated: 10/01/2025 16:57
Changes: 05/30/2024 18:59 (58), 04/05/2025 07:10 (2), 10/01/2025 16:57 (10)
Complete: 🔍
Cache ID: 216::103

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