Linux Kernel up to 6.11.1 nfsd xdr_reserve_space null pointer dereference

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

Summaryinfo

A vulnerability described as problematic has been identified in Linux Kernel up to 6.11.1. Affected is the function xdr_reserve_space of the component nfsd. Executing a manipulation can lead to null pointer dereference. The identification of this vulnerability is CVE-2024-47737. There is no exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in Linux Kernel up to 6.11.1. It has been declared as problematic. This vulnerability affects the function xdr_reserve_space of the component nfsd. The manipulation with an unknown input leads to a null pointer dereference vulnerability. The CWE definition for the vulnerability is CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. As an impact it is known to affect availability. CVE summarizes:

In the Linux kernel, the following vulnerability has been resolved: nfsd: call cache_put if xdr_reserve_space returns NULL If not enough buffer space available, but idmap_lookup has triggered lookup_fn which calls cache_get and returns successfully. Then we missed to call cache_put here which pairs with cache_get. Reviwed-by: Jeff Layton

The advisory is shared for download at git.kernel.org. This vulnerability was named CVE-2024-47737 since 09/30/2024. The exploitation appears to be easy. There are known technical details, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 212567 (SUSE SLES12 Security Update : kernel (SUSE-SU-2024:4100-1)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 5.10.227, 5.15.168, 6.1.113, 6.6.54, 6.10.13 or 6.11.2 eliminates this vulnerability. Applying the patch 9f03f0016ff7/9803ab882d56/818216173129/a1afbbb5276f/e32ee6a61041/8d0765f86135/d078cbf5c38d 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 databases at Tenable (212567) and CERT Bund (WID-SEC-2024-3251). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Affected

  • Google Container-Optimized OS
  • Debian Linux
  • Amazon Linux 2
  • Red Hat Enterprise Linux
  • NetApp StorageGRID
  • Ubuntu Linux
  • SUSE Linux
  • Oracle Linux
  • Kyocera Printer
  • NetApp AFF
  • NetApp ActiveIQ Unified Manager
  • SUSE openSUSE
  • IBM Security Guardium
  • RESF Rocky Linux
  • Dell NetWorker
  • Dell Avamar
  • IBM QRadar SIEM
  • NetApp FAS
  • SolarWinds Security Event Manager
  • Dell PowerProtect Data Domain
  • Open Source Linux Kernel
  • Dell PowerScale OneFS

Productinfo

Type

Vendor

Name

Version

License

Website

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: Null pointer dereference
CWE: CWE-476 / 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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Nessus ID: 212567
Nessus Name: SUSE SLES12 Security Update : kernel (SUSE-SU-2024:4100-1)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Kernel 5.10.227/5.15.168/6.1.113/6.6.54/6.10.13/6.11.2
Patch: 9f03f0016ff7/9803ab882d56/818216173129/a1afbbb5276f/e32ee6a61041/8d0765f86135/d078cbf5c38d

Timelineinfo

09/30/2024 🔍
10/21/2024 +21 days 🔍
10/21/2024 +0 days 🔍
01/19/2026 +455 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2024-47737 (🔍)
GCVE (CVE): GCVE-0-2024-47737
GCVE (VulDB): GCVE-100-281104
CERT Bund: WID-SEC-2024-3251 - Linux Kernel: Mehrere Schwachstellen ermöglichen Denial of Service

Entryinfo

Created: 10/21/2024 15:58
Updated: 01/19/2026 06:16
Changes: 10/21/2024 15:58 (59), 10/23/2024 22:18 (11), 12/12/2024 21:53 (2), 07/26/2025 01:33 (7), 10/05/2025 22:09 (1), 01/19/2026 06:16 (1)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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