PT-2025-13210 · Linux+4 · Linux Kernel+4

Published 2025-02-20 · Updated 2026-04-20 · CVE-2025-21873

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

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

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

Description A crash can occur in the Linux kernel when the arpmb command fails due to the device not supporting it. This happens because user data is copied in bsg transport sg io fn(), leading to a memory crash. The issue arises when ufs bsg exec advanced rpmb req() returns an error, and the job's reply len is not set. A memory crash backtrace is provided, showing the call trace and error messages, including "ARPMB OP failed: error code -22".

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

Exploit

RCE

Weakness Enumeration

CWE-20

Related Identifiers

BDU:2025-03740

CVE-2025-21873

OESA-2025-1446

OESA-2025-1450

OPENSUSE-SU-2025_01614-1

OPENSUSE-SU-2025_01707-1

SUSE-SU-2025:01614-1

SUSE-SU-2025:01707-1

SUSE-SU-2025:01919-1

SUSE-SU-2025:01951-1

SUSE-SU-2025:01964-1

SUSE-SU-2025:01967-1

SUSE-SU-2025:20192-1

SUSE-SU-2025:20206-1

SUSE-SU-2025:20270-1

SUSE-SU-2025:20283-1

SUSE-SU-2025_01614-1

SUSE-SU-2025_01707-1

SUSE-SU-2025_01951-1

SUSE-SU-2025_01964-1

SUSE-SU-2025_01967-1

USN-7521-1

USN-7521-2

USN-7521-3

USN-7764-1

USN-7764-2

USN-7765-1

USN-7766-1

USN-7767-1

USN-7767-2

USN-7779-1

USN-7790-1

USN-7800-1

USN-7801-1

USN-7801-2

USN-7801-3

USN-7802-1

USN-7809-1

Affected Products

Astra Linux

Linuxmint

Linux Kernel

Suse

Ubuntu

References · 2057

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/21xxx/CVE-2025-21873.json · Exploit
• https://ubuntu.com/security/CVE-2024-57997 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-21780 · Security Note
• https://osv.dev/vulnerability/USN-7764-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-21871 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-21941 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2025-21927 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2025-21914 · Security Note
• https://ubuntu.com/security/CVE-2025-21864 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-21791 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-21978 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-7800-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-21820 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-7764-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2024-58082 · Vendor Advisory