Linux Kernel up to 6.9.7 bpf arena_vm_close use after free

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.6$0-$5k0.00

Summaryinfo

A vulnerability was found in Linux Kernel up to 6.9.7. It has been declared as critical. The affected element is the function arena_vm_close of the component bpf. Executing a manipulation can lead to use after free. This vulnerability is registered as CVE-2024-42075. No exploit is available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability has been found in Linux Kernel up to 6.9.7 and classified as critical. This vulnerability affects the function arena_vm_close of the component bpf. The manipulation with an unknown input leads to a use after free vulnerability. The CWE definition for the vulnerability is CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix remap of arena. The bpf arena logic didn't account for mremap operation. Add a refcnt for multiple mmap events to prevent use-after-free in arena_vm_close.

The advisory is shared for download at git.kernel.org. This vulnerability was named CVE-2024-42075 since 07/29/2024. There are known technical details, but no exploit is available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 09/02/2025).

Upgrading to version 6.9.8 eliminates this vulnerability. Applying the patch 87496a1b01e8/b90d77e5fd78 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-2024-1722). 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
  • NetApp FAS
  • NetApp ActiveIQ Unified Manager
  • Siemens SIMATIC S7
  • Oracle VM
  • IBM Security Guardium
  • RESF Rocky Linux
  • Broadcom Brocade SANnav
  • Dell PowerScale
  • Open Source Linux Kernel
  • IBM QRadar SIEM
  • Dell integrated Dell Remote Access Controller
  • Dell Avamar
  • IBM Storage Scale
  • IBM Spectrum Protect Plus
  • Juniper Junos Space
  • IBM Storage Scale System
  • SolarWinds Security Event Manager
  • Dell PowerProtect Data Domain
  • Dell PowerProtect Data Domain Management Center
  • Dell PowerProtect Data Domain OS

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.8
VulDB Meta Temp Score: 6.6

VulDB Base Score: 8.0
VulDB Temp Score: 7.6
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: Use after free
CWE: CWE-416 / CWE-119
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 6.9.8
Patch: 87496a1b01e8/b90d77e5fd78

Timelineinfo

07/29/2024 🔍
07/29/2024 +0 days 🔍
07/29/2024 +0 days 🔍
09/02/2025 +400 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2024-42075 (🔍)
GCVE (CVE): GCVE-0-2024-42075
GCVE (VulDB): GCVE-100-272740
CERT Bund: WID-SEC-2024-1722 - Linux Kernel: Mehrere Schwachstellen ermöglichen nicht spezifizierten Angriff

Entryinfo

Created: 07/29/2024 19:12
Updated: 09/02/2025 17:45
Changes: 07/29/2024 19:12 (58), 07/31/2024 00:09 (12), 07/15/2025 21:59 (8), 07/19/2025 17:33 (1), 09/02/2025 17:45 (1)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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