Linux Kernel up to 6.10.2 f2fs is_end_zone_blkaddr null pointer dereference

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CTI Interest Score
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5.5$0-$5k0.00

Summaryinfo

A vulnerability was found in Linux Kernel up to 6.10.2 and classified as critical. This affects the function is_end_zone_blkaddr of the component f2fs. Such manipulation leads to null pointer dereference. This vulnerability is traded as CVE-2024-43857. There is no exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in Linux Kernel up to 6.10.2 and classified as critical. Affected by this issue is the function is_end_zone_blkaddr of the component f2fs. 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. CVE summarizes:

In the Linux kernel, the following vulnerability has been resolved: f2fs: fix null reference error when checking end of zone This patch fixes a potentially null pointer being accessed by is_end_zone_blkaddr() that checks the last block of a zone when f2fs is mounted as a single device.

The advisory is shared for download at git.kernel.org. This vulnerability is handled as CVE-2024-43857 since 08/17/2024. There are known technical details, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 212724 (Ubuntu 22.04 LTS / 24.04 LTS : Linux kernel vulnerabilities (USN-7154-1)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 6.10.3 eliminates this vulnerability. Applying the patch 381cbe85592c/c82bc1ab2a8a 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 (212724) and CERT Bund (WID-SEC-2024-1875). Once again VulDB remains the best source for vulnerability data.

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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Nessus ID: 212724
Nessus Name: Ubuntu 22.04 LTS / 24.04 LTS : Linux kernel vulnerabilities (USN-7154-1)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Kernel 6.10.3
Patch: 381cbe85592c/c82bc1ab2a8a

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-2024-43857 (🔍)
GCVE (CVE): GCVE-0-2024-43857
GCVE (VulDB): GCVE-100-274964
CERT Bund: WID-SEC-2024-1875 - Linux Kernel: Mehrere Schwachstellen ermöglichen Denial of Service

Entryinfo

Created: 08/17/2024 12:56
Updated: 02/02/2026 03:20
Changes: 08/17/2024 12:56 (59), 08/22/2024 20:22 (11), 12/13/2024 18:08 (2), 02/02/2026 03:20 (7)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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