PT-2025-16696 · Linux+10 · Linux Kernel+10

Published 2025-04-16 · Updated 2026-04-20 · CVE-2025-22056

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description A vulnerability in the Linux kernel's netfilter component, specifically in the nft tunnel module, has been resolved. The issue arises from incorrect pointer addition and type conversion when handling multiple NFTA TUNNEL KEY OPTS GENEVE attributes, leading to a heap out-of-bounds write. This can cause a slab-out-of-bounds error, as reported by the KASAN (Kernel Address Sanitizer).

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

DoS

Memory Corruption

Weakness Enumeration

CWE-787

Related Identifiers

ALSA-2025:20095

ALSA-2025:20518

ALT-PU-2025-12647

ALT-PU-2025-5437

ALT-PU-2025-6382

ALT-PU-2025-6606

ALT-PU-2025-7195

AZL-61463

BDU:2025-08099

CVE-2025-22056

DLA-4178-1

DLA-4193-1

DSA-5907-1

ECHO-A606-1CAD-61A6

INFSA-2025_20518

MGASA-2025-0142

MGASA-2025-0146

OESA-2025-2118

OESA-2025-2119

OESA-2025-2120

OESA-2025-2121

OESA-2025-2122

RHSA-2025:20095

RHSA-2025:20518

RHSA-2025_20518

RHSA-2026:4011

SUSE-SU-2025:01918-1

SUSE-SU-2025:01919-1

SUSE-SU-2025:01951-1

SUSE-SU-2025:01964-1

SUSE-SU-2025:01965-1

SUSE-SU-2025:01966-1

SUSE-SU-2025:01967-1

SUSE-SU-2025:01972-1

SUSE-SU-2025:02000-1

SUSE-SU-2025:02173-1

SUSE-SU-2025:02262-1

SUSE-SU-2025:20408-1

SUSE-SU-2025:20413-1

SUSE-SU-2025:20419-1

SUSE-SU-2025:20421-1

SUSE-SU-2025:2173-1

SUSE-SU-2025_01951-1

SUSE-SU-2025_01964-1

SUSE-SU-2025_01965-1

SUSE-SU-2025_01967-1

SUSE-SU-2025_01972-1

SUSE-SU-2025_02000-1

SUSE-SU-2025_02173-1

SUSE-SU-2025_02262-1

USN-7591-1

USN-7591-2

USN-7591-3

USN-7591-4

USN-7591-5

USN-7591-6

USN-7592-1

USN-7593-1

USN-7594-1

USN-7594-2

USN-7594-3

USN-7597-1

USN-7597-2

USN-7598-1

USN-7602-1

USN-7605-1

USN-7605-2

USN-7606-1

USN-7628-1

USN-7655-1

USN-7835-1

USN-7835-2

USN-7835-3

USN-7835-4

USN-7835-5

USN-7835-6

USN-7887-1

USN-7887-2

USN-7940-1

USN-7940-2

Affected Products

Alt Linux

Almalinux

Astra Linux

Debian

Linuxmint

Linux Kernel

Red Hat

Red Os

Rocky Linux

Suse

Ubuntu

References · 2969

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/22xxx/CVE-2025-22056.json · Exploit
• https://ubuntu.com/security/CVE-2025-22125 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-21945 · Vendor Advisory
• https://ubuntu.com/security/CVE-2024-35866 · Vendor Advisory
• https://osv.dev/vulnerability/USN-7591-1 · Vendor Advisory
• https://osv.dev/vulnerability/OESA-2025-2121 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2025-22056 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-37819 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-37740 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:20421-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-37786 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-22034 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-37881 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-38044 · Security Note
• https://ubuntu.com/security/CVE-2025-37755 · Vendor Advisory