Linux Kernel up to 8058c88ac0df21239daee54b5934d5c80ca9685f netfilter nf_set_pipapo_avx2 memory leak

CVSS Meta Temp Score
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CTI Interest Score
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4.4$0-$5k1.72

Summaryinfo

A vulnerability classified as problematic was found in Linux Kernel up to 8058c88ac0df21239daee54b5934d5c80ca9685f. The impacted element is the function nf_set_pipapo_avx2 of the component netfilter. The manipulation results in memory leak. This vulnerability is identified as CVE-2025-38120. There is not any exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability, which was classified as problematic, was found in Linux Kernel up to 8058c88ac0df21239daee54b5934d5c80ca9685f. Affected is the function nf_set_pipapo_avx2 of the component netfilter. The manipulation with an unknown input leads to a memory leak vulnerability. CWE is classifying the issue as CWE-401. The product does not sufficiently track and release allocated memory after it has been used, which slowly consumes remaining memory. This is going to have an impact on confidentiality. CVE summarizes:

In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_set_pipapo_avx2: fix initial map fill If the first field doesn't cover the entire start map, then we must zero out the remainder, else we leak those bits into the next match round map. The early fix was incomplete and did only fix up the generic C implementation. A followup patch adds a test case to nft_concat_range.sh.

The advisory is available at git.kernel.org. This vulnerability is traded as CVE-2025-38120 since 04/16/2025. Technical details are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 249177 (Debian dsa-5973 : affs-modules-6.1.0-37-4kc-malta-di - security update), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 5.15.186, 6.1.142, 6.6.94, 6.12.34, 6.15.3 or 6.16-rc1 eliminates this vulnerability. Applying the patch b5ad58285f9217d68cd5ea2ad86ce254a3fe7c4d/90bc7f5a244aadee4292b28098b7c98aadd4b3aa/39bab2d3517b5b50c609b4f8c66129bf619fffa0/251496ce1728c9fd47bd2b20a7b21b20b9a020ca/8068e1e42b46518ce680dc6470bcd710efc3fa0a/ea77c397bff8b6d59f6d83dae1425b08f465e8b5 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 (249177), EUVD (EUVD-2025-19823) and CERT Bund (WID-SEC-2025-1452). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Affected

  • Google Container-Optimized OS
  • Debian Linux
  • Amazon Linux 2
  • Red Hat Enterprise Linux
  • Ubuntu Linux
  • SUSE Linux
  • Oracle Linux
  • IBM QRadar SIEM
  • SUSE openSUSE
  • RESF Rocky Linux
  • Dell Avamar
  • Open Source Linux Kernel
  • Dell NetWorker
  • Dell Secure Connect Gateway

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.5
VulDB Meta Temp Score: 4.4

VulDB Base Score: 3.5
VulDB Temp Score: 3.4
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: Memory leak
CWE: CWE-401 / 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: 249177
Nessus Name: Debian dsa-5973 : affs-modules-6.1.0-37-4kc-malta-di - security update

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Kernel 5.15.186/6.1.142/6.6.94/6.12.34/6.15.3/6.16-rc1
Patch: b5ad58285f9217d68cd5ea2ad86ce254a3fe7c4d/90bc7f5a244aadee4292b28098b7c98aadd4b3aa/39bab2d3517b5b50c609b4f8c66129bf619fffa0/251496ce1728c9fd47bd2b20a7b21b20b9a020ca/8068e1e42b46518ce680dc6470bcd710efc3fa0a/ea77c397bff8b6d59f6d83dae1425b08f465e8b5

Timelineinfo

04/16/2025 CVE reserved
07/03/2025 +78 days Advisory disclosed
07/03/2025 +0 days VulDB entry created
04/18/2026 +288 days VulDB entry last update

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2025-38120 (🔒)
GCVE (CVE): GCVE-0-2025-38120
GCVE (VulDB): GCVE-100-314706
EUVD: 🔒
CERT Bund: WID-SEC-2025-1452 - Linux Kernel: Mehrere Schwachstellen

Entryinfo

Created: 07/03/2025 11:42
Updated: 04/18/2026 00:34
Changes: 07/03/2025 11:42 (59), 07/03/2025 14:51 (1), 08/13/2025 12:55 (2), 08/23/2025 16:30 (7), 09/21/2025 18:46 (1), 11/09/2025 14:00 (1), 12/06/2025 06:33 (1), 12/07/2025 00:30 (1), 12/18/2025 01:39 (11), 04/18/2026 00:34 (1)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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