Linux Kernel up to 6.3 ksmbd fs/ksmbd/server.c ksmbd_server_init race condition

CVSS Meta Temp Score
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CTI Interest Score
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3.8$0-$5k0.00

A vulnerability has been found in Linux Kernel up to 6.3 (Operating System) and classified as problematic. This vulnerability affects the function ksmbd_server_init of the file fs/ksmbd/server.c of the component ksmbd. The manipulation with an unknown input leads to a race condition vulnerability. The CWE definition for the vulnerability is CWE-362. The product contains a code sequence that can run concurrently with other code, and the code sequence requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence that is operating concurrently. As an impact it is known to affect confidentiality, integrity, and availability.

The weakness was disclosed 05/18/2023. The advisory is available at zerodayinitiative.com. This vulnerability was named CVE-2023-32246 since 05/05/2023. Technical details are known, but there is no available exploit.

Upgrading to version 6.4-rc1 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying the patch eb307d09fe15844fdaebeb8cc8c9b9e925430aa5 is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

Productinfo

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Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.9
VulDB Meta Temp Score: 3.8

VulDB Base Score: 3.9
VulDB Temp Score: 3.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

Exploitinginfo

Class: Race condition
CWE: CWE-362
CAPEC: 🔍
ATT&CK: 🔍

Local: Yes
Remote: No

Availability: 🔍
Status: Not defined
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 6.4-rc1
Patch: eb307d09fe15844fdaebeb8cc8c9b9e925430aa5

Timelineinfo

05/05/2023 🔍
05/18/2023 +13 days 🔍
05/18/2023 +0 days 🔍
05/18/2023 +0 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: zerodayinitiative.com
Status: Confirmed

CVE: CVE-2023-32246 (🔍)

Entryinfo

Created: 05/18/2023 09:32 AM
Changes: 05/18/2023 09:32 AM (44)
Complete: 🔍
Cache ID: 18:0A8:40

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