Linux Kernel IP Framework net/xfrm/xfrm_user.c xfrm_update_ae_params denial of service

CVSS Meta Temp Score
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CTI Interest Score
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5.1$0-$5k0.00

Summaryinfo

A vulnerability marked as problematic has been reported in Linux Kernel. The impacted element is the function xfrm_update_ae_params of the file net/xfrm/xfrm_user.c of the component IP Framework. Performing a manipulation results in denial of service. This vulnerability is reported as CVE-2023-3772. The attack requires a local approach. No exploit exists. It is recommended to apply a patch to fix this issue.

Detailsinfo

A vulnerability, which was classified as problematic, was found in Linux Kernel (Operating System) (the affected version is unknown). This affects the function xfrm_update_ae_params of the file net/xfrm/xfrm_user.c of the component IP Framework. The manipulation with an unknown input leads to a denial of service vulnerability. CWE is classifying the issue as CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. This is going to have an impact on availability. The summary by CVE is:

A flaw was found in the Linux kernel’s IP framework for transforming packets (XFRM subsystem). This issue may allow a malicious user with CAP_NET_ADMIN privileges to directly dereference a NULL pointer in xfrm_update_ae_params(), leading to a possible kernel crash and denial of service.

The weakness was disclosed 07/26/2023. It is possible to read the advisory at access.redhat.com. This vulnerability is uniquely identified as CVE-2023-3772 since 07/19/2023. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 281316 (Unity Linux 20.1060a / 20.1070a Security Update: kernel (UTSA-2025-993218)), which helps to determine the existence of the flaw in a target environment.

Applying a patch is able to eliminate this problem. The bugfix is ready for download at lore.kernel.org.

The vulnerability is also documented in the databases at Tenable (281316), EUVD (EUVD-2023-44405) and CERT Bund (WID-SEC-2023-1882). Be aware that VulDB is the high quality source for vulnerability data.

Affected

  • Debian Linux
  • Amazon Linux 2
  • Red Hat Enterprise Linux
  • Ubuntu Linux
  • SUSE Linux
  • Oracle Linux
  • Open Source Linux Kernel
  • IBM Spectrum Protect
  • Oracle VM
  • Dell NetWorker

Productinfo

Type

Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.1
VulDB Meta Temp Score: 5.1

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 4.4
NVD Vector: 🔍

CNA Base Score: 5.5
CNA Vector (Red Hat, Inc.): 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Denial of service
CWE: CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 281316
Nessus Name: Unity Linux 20.1060a / 20.1070a Security Update: kernel (UTSA-2025-993218)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: lore.kernel.org

Timelineinfo

07/19/2023 🔍
07/26/2023 +7 days 🔍
07/26/2023 +0 days 🔍
01/01/2026 +890 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: access.redhat.com
Status: Confirmed

CVE: CVE-2023-3772 (🔍)
GCVE (CVE): GCVE-0-2023-3772
GCVE (VulDB): GCVE-100-235407
EUVD: 🔍
CERT Bund: WID-SEC-2023-1882 - Linux Kernel: Mehrere Schwachstellen

Entryinfo

Created: 07/26/2023 09:41
Updated: 01/01/2026 23:20
Changes: 07/26/2023 09:41 (52), 09/13/2024 21:42 (26), 07/24/2025 01:02 (1), 11/12/2025 08:53 (7), 01/01/2026 23:20 (2)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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