Linux Kernel up to 5.17.1 fs/nfsd/nfsxdr.c nfssvc_decode_writeargs data authenticity

CVSS Meta Temp Score
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CTI Interest Score
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5.4$0-$5k0.00

Summaryinfo

A vulnerability marked as problematic has been reported in Linux Kernel up to 5.17.1. Affected by this issue is the function nfssvc_decode_writeargs of the file fs/nfsd/nfsxdr.c. This manipulation causes data authenticity. This vulnerability is registered as CVE-2022-49280. No exploit is available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic was found in Linux Kernel up to 5.17.1. Affected by this vulnerability is the function nfssvc_decode_writeargs of the file fs/nfsd/nfsxdr.c. The manipulation with an unknown input leads to a data authenticity vulnerability. The CWE definition for the vulnerability is CWE-345. The product does not sufficiently verify the origin or authenticity of data, in a way that causes it to accept invalid data. The impact remains unknown. The summary by CVE is:

In the Linux kernel, the following vulnerability has been resolved: NFSD: prevent underflow in nfssvc_decode_writeargs() Smatch complains: fs/nfsd/nfsxdr.c:341 nfssvc_decode_writeargs() warn: no lower bound on 'args->len' Change the type to unsigned to prevent this issue.

It is possible to read the advisory at git.kernel.org. This vulnerability is known as CVE-2022-49280 since 02/26/2025. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 235744 (EulerOS 2.0 SP10 : kernel (EulerOS-SA-2025-1520)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 4.9.311, 4.14.276, 4.19.238, 5.4.189, 5.10.110, 5.15.33, 5.16.19 or 5.17.2 eliminates this vulnerability. Applying the patch 1a33e0de60feda402d05ac8a6cf409c19ea3e0b3/438068f4912183a59fcb6b7496a06437f7fd4e2b/9f0f048c1bfa7867d565a95fd8c28f4484ba1043/85259340fc9bd54e3d567b41b881ecb4d0055da1/65e21cc042f4c1518c8c55283f53bc725b78419d/614a61e1592051cc42d3c38f899c9f7bdaad8a1d/2764af8ce0bf03cc43ee4a11897cab96bde6caae/413d8fefafe531a9442bb623e3fe292a38f88d65/184416d4b98509fb4c3d8fc3d6dc1437896cc159 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.

The vulnerability is also documented in the vulnerability database at Tenable (235744). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.4

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔍

CVSSv2info

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

Exploitinginfo

Class: Data authenticity
CWE: CWE-345
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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Nessus ID: 235744
Nessus Name: EulerOS 2.0 SP10 : kernel (EulerOS-SA-2025-1520)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Kernel 4.9.311/4.14.276/4.19.238/5.4.189/5.10.110/5.15.33/5.16.19/5.17.2
Patch: 1a33e0de60feda402d05ac8a6cf409c19ea3e0b3/438068f4912183a59fcb6b7496a06437f7fd4e2b/9f0f048c1bfa7867d565a95fd8c28f4484ba1043/85259340fc9bd54e3d567b41b881ecb4d0055da1/65e21cc042f4c1518c8c55283f53bc725b78419d/614a61e1592051cc42d3c38f899c9f7bdaad8a1d/2764af8ce0bf03cc43ee4a11897cab96bde6caae/413d8fefafe531a9442bb623e3fe292a38f88d65/184416d4b98509fb4c3d8fc3d6dc1437896cc159

Timelineinfo

02/26/2025 🔍
02/26/2025 +0 days 🔍
02/26/2025 +0 days 🔍
05/13/2025 +76 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2022-49280 (🔍)
GCVE (CVE): GCVE-0-2022-49280
GCVE (VulDB): GCVE-100-297595

Entryinfo

Created: 02/26/2025 13:19
Updated: 05/13/2025 13:10
Changes: 02/26/2025 13:19 (58), 04/15/2025 10:11 (11), 05/13/2025 13:10 (2)
Complete: 🔍
Committer: sany
Cache ID: 216::103

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