Linux Kernel up to 5.19.1 fs/ksmbd/smb2misc.c smb2_get_data_area_len out-of-bounds

CVSS Meta Temp Score
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CTI Interest Score
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4.9$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic has been found in Linux Kernel up to 5.19.1. Affected is the function smb2_get_data_area_len of the file fs/ksmbd/smb2misc.c. The manipulation leads to out-of-bounds. This vulnerability is uniquely identified as CVE-2022-47938. No exploit exists. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in Linux Kernel up to 5.19.1 (Operating System). This issue affects the function smb2_get_data_area_len of the file fs/ksmbd/smb2misc.c. The manipulation with an unknown input leads to a out-of-bounds vulnerability. Using CWE to declare the problem leads to CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. Impacted is confidentiality. The summary by CVE is:

An issue was discovered in ksmbd in the Linux kernel before 5.19.2. fs/ksmbd/smb2misc.c has an out-of-bounds read and OOPS for SMB2_TREE_CONNNECT.

The weakness was disclosed 12/23/2022. The advisory is shared at openwall.com. The identification of this vulnerability is CVE-2022-47938 since 12/23/2022. Technical details are known, but no exploit is available.

Upgrading to version 5.19.2 eliminates this vulnerability. The upgrade is hosted for download at cdn.kernel.org. Applying a patch 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

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.0
VulDB Meta Temp Score: 4.9

VulDB Base Score: 3.5
VulDB Temp Score: 3.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.5
NVD Vector: 🔍

CVSSv2info

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

Exploitinginfo

Class: Out-of-bounds
CWE: CWE-125 / 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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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Kernel 5.19.2
Patch: git.kernel.org

Timelineinfo

12/23/2022 🔍
12/23/2022 +0 days 🔍
12/23/2022 +0 days 🔍
04/15/2025 +844 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: 824d4f64c20093275f72fc8101394d75ff6a249e
Status: Confirmed

CVE: CVE-2022-47938 (🔍)
GCVE (CVE): GCVE-0-2022-47938
GCVE (VulDB): GCVE-100-216677

Entryinfo

Created: 12/23/2022 20:38
Updated: 04/15/2025 07:13
Changes: 12/23/2022 20:38 (44), 01/23/2023 13:14 (1), 01/23/2023 13:21 (11), 04/15/2025 07:13 (16)
Complete: 🔍
Cache ID: 216::103

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