Linux Kernel up to 6.10.2 Netlink Attribute ethnl_set_pse_validate 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 classified as critical has been found in Linux Kernel up to 6.10.2. The affected element is the function ethnl_set_pse_validate of the component Netlink Attribute Handler. The manipulation leads to null pointer dereference. This vulnerability is listed as CVE-2024-43836. There is no available exploit. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Linux Kernel up to 6.10.2 and classified as critical. This issue affects the function ethnl_set_pse_validate of the component Netlink Attribute Handler. The manipulation with an unknown input leads to a null pointer dereference vulnerability. Using CWE to declare the problem leads to 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. Impacted is availability. The summary by CVE is:

In the Linux kernel, the following vulnerability has been resolved: net: ethtool: pse-pd: Fix possible null-deref Fix a possible null dereference when a PSE supports both c33 and PoDL, but only one of the netlink attributes is specified. The c33 or PoDL PSE capabilities are already validated in the ethnl_set_pse_validate() call.

The advisory is shared at git.kernel.org. The identification of this vulnerability is CVE-2024-43836 since 08/17/2024. Technical details are known, but no exploit is available.

Upgrading to version 6.10.3 eliminates this vulnerability. Applying the patch e187690b125a/4cddb0f15ea9 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 CERT Bund (WID-SEC-2024-1875). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Affected

  • Debian Linux
  • Amazon Linux 2
  • Red Hat Enterprise Linux
  • Ubuntu Linux
  • SUSE Linux
  • IBM InfoSphere Guardium
  • Oracle Linux
  • IBM Security Guardium
  • RESF Rocky Linux
  • Broadcom Brocade SANnav
  • Open Source Linux Kernel
  • IBM QRadar SIEM
  • IBM Spectrum Protect Plus
  • SolarWinds Security Event Manager
  • IBM DataPower Gateway
  • Dell NetWorker

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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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Kernel 6.10.3
Patch: e187690b125a/4cddb0f15ea9

Timelineinfo

08/17/2024 🔍
08/17/2024 +0 days 🔍
08/17/2024 +0 days 🔍
02/02/2026 +534 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2024-43836 (🔍)
GCVE (CVE): GCVE-0-2024-43836
GCVE (VulDB): GCVE-100-274973
CERT Bund: WID-SEC-2024-1875 - Linux Kernel: Mehrere Schwachstellen ermöglichen Denial of Service

Entryinfo

Created: 08/17/2024 12:57
Updated: 02/02/2026 02:08
Changes: 08/17/2024 12:57 (59), 08/22/2024 20:11 (11), 02/02/2026 02:08 (7)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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