Linux Kernel up to 6.14.1 IPv6 Address netlbl_conn_setattr 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 labeled as critical has been found in Linux Kernel up to 6.14.1. This vulnerability affects the function netlbl_conn_setattr of the component IPv6 Address Handler. The manipulation results in null pointer dereference. This vulnerability is cataloged as CVE-2025-22063. There is no exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability classified as critical has been found in Linux Kernel up to 6.14.1. Affected is the function netlbl_conn_setattr of the component IPv6 Address Handler. The manipulation with an unknown input leads to a null pointer dereference vulnerability. CWE is classifying the issue as 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. This is going to have an impact on availability. CVE summarizes:

In the Linux kernel, the following vulnerability has been resolved: netlabel: Fix NULL pointer exception caused by CALIPSO on IPv4 sockets When calling netlbl_conn_setattr(), addr->sa_family is used to determine the function behavior. If sk is an IPv4 socket, but the connect function is called with an IPv6 address, the function calipso_sock_setattr() is triggered. Inside this function, the following code is executed: sk_fullsock(__sk) ? inet_sk(__sk)->pinet6 : NULL; Since sk is an IPv4 socket, pinet6 is NULL, leading to a null pointer dereference. This patch fixes the issue by checking if inet6_sk(sk) returns a NULL pointer before accessing pinet6.

The advisory is available at git.kernel.org. This vulnerability is traded as CVE-2025-22063 since 12/29/2024. Technical details are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 234884 (Debian dsa-5907 : affs-modules-6.1.0-33-4kc-malta-di - security update), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 5.4.292, 5.10.236, 5.15.180, 6.1.134, 6.6.87, 6.12.23, 6.13.11, 6.14.2 or 6.15-rc1 eliminates this vulnerability. Applying the patch 1ad9166cab6a0f5c0b10344a97bdf749ae11dcbf/1e38f7a6cdd68377f8a4189b2fbaec14a6dd5152/a7e89541d05b98c79a51c0f95df020f8e82b62ed/797e5371cf55463b4530bab3fef5f27f7c6657a8/1927d0bcd5b81e80971bf6b8eba267508bd1c78b/3ba9cf69de50e8abed32b448616c313baa4c5712/9fe3839588db7519030377b7dee3f165e654f6c5/172a8a996a337206970467e871dd995ac07640b1/078aabd567de3d63d37d7673f714e309d369e6e2 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 (234884) and CERT Bund (WID-SEC-2025-0844). 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
  • SUSE openSUSE
  • RESF Rocky Linux
  • Open Source Linux Kernel
  • Dell Avamar
  • SolarWinds Security Event Manager
  • Dell NetWorker
  • Dell Secure Connect Gateway
  • IBM QRadar SIEM

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.7
VulDB Meta Temp Score: 5.5

VulDB Base Score: 5.7
VulDB Temp Score: 5.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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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: No
Local: No
Remote: Partially

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 234884
Nessus Name: Debian dsa-5907 : affs-modules-6.1.0-33-4kc-malta-di - security update

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Kernel 5.4.292/5.10.236/5.15.180/6.1.134/6.6.87/6.12.23/6.13.11/6.14.2/6.15-rc1
Patch: 1ad9166cab6a0f5c0b10344a97bdf749ae11dcbf/1e38f7a6cdd68377f8a4189b2fbaec14a6dd5152/a7e89541d05b98c79a51c0f95df020f8e82b62ed/797e5371cf55463b4530bab3fef5f27f7c6657a8/1927d0bcd5b81e80971bf6b8eba267508bd1c78b/3ba9cf69de50e8abed32b448616c313baa4c5712/9fe3839588db7519030377b7dee3f165e654f6c5/172a8a996a337206970467e871dd995ac07640b1/078aabd567de3d63d37d7673f714e309d369e6e2

Timelineinfo

12/29/2024 🔍
04/16/2025 +107 days 🔍
04/16/2025 +0 days 🔍
02/15/2026 +305 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2025-22063 (🔍)
GCVE (CVE): GCVE-0-2025-22063
GCVE (VulDB): GCVE-100-305154
CERT Bund: WID-SEC-2025-0844 - Linux Kernel: Mehrere Schwachstellen

Entryinfo

Created: 04/16/2025 17:28
Updated: 02/15/2026 09:17
Changes: 04/16/2025 17:28 (59), 04/28/2025 06:08 (2), 07/15/2025 01:31 (7), 10/13/2025 01:15 (1), 02/15/2026 09:17 (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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