CVERadar
HIGH · CVSS 3.1 7.8CISA KEV · added 2025-04-09EPSS 4.12% (p91)Threat level 55

CVE-2024-53197: Linux Kernel Out-of-Bounds Access Vulnerability

Linux · Kernel · NVD published 2024-12-27 · posted 2025-04-09 · last modified 2026-06-17

What it is

In the Linux kernel, the following vulnerability has been resolved: ALSA: usb-audio: Fix potential out-of-bound accesses for Extigy and Mbox devices A bogus device can provide a bNumConfigurations value that exceeds the initial value used in usb_get_configuration for allocating dev->config. This can lead to out-of-bounds accesses later, e.g. in usb_destroy_configuration.

WeaknessCWE-787
CVSS vectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H (source: 134c704f-9b21-4f2e-91b3-4a467353bcc0)
CISA due date2025-04-30 (for US federal agencies under BOD; a good deadline for everyone)
ATT&CK tacticsInitial Access → Lateral Movement → Execution → Privilege Escalation

Exploitation evidence

First exploit evidence seen: 2025-04-09 (earliest date across the sources below).

Exploited in the wild

  • CISA KEV: listed since 2025-04-09. Source

Sources: CISA KEV.

Defend the Chain

The attack chain for CVE-2024-53197 laid across the MITRE ATT&CK Enterprise tactics. Solid cards come from the MITRE CTID KEV mappings; dashed cards are inferred by CVERadar from the CWE or description. Correct defences are real ATT&CK mitigations for that technique.

Threat level 55/100
Defender level 1 · 0 XP
Chain links broken: 0/3

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Stealth

Defense Impairment

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Pick a red technique card on the board, then choose the defence that stops it.

Defend against T1091 Replication Through Removable Media CTID: exploitation technique

Using a malicious USB device, an attacker can trigger an out-of-bounds heap write in the kernel, allowing the attacker to obtain root access and potentiall execute arbitrary code.

How to fix it

CISA required action

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable. (source: CISA KEV)

Fixed versions

  • linux linux kernel: upgrade to 4.19.325 or later (affected from 2.6.12)
  • linux linux kernel: upgrade to 5.4.287 or later (affected from 4.20)
  • linux linux kernel: upgrade to 5.10.231 or later (affected from 5.5)
  • linux linux kernel: upgrade to 5.15.174 or later (affected from 5.11)
  • linux linux kernel: upgrade to 6.1.120 or later (affected from 5.16)
  • linux linux kernel: upgrade to 6.6.64 or later (affected from 6.2)
  • linux linux kernel: upgrade to 6.11.11 or later (affected from 6.7)
  • linux linux kernel: upgrade to 6.12.2 or later (affected from 6.12)

Derived from the NVD CPE configuration (versionEndExcluding / versionEndIncluding). Always confirm with the vendor advisory.

Vendor advisories and patches

MITRE ATT&CK mitigations for this chain

  • M1042 Disable or Remove Feature or Program (for T1091, T1059) : Disable Autorun if it is unnecessary. Disallow or restrict removable media at an organizational policy level if it is not required for business operations.
  • M1034 Limit Hardware Installation (for T1091) : Limit the use of USB devices and removable media within a network.
  • M1040 Behavior Prevention on Endpoint (for T1091, T1059) : On Windows 10, enable Attack Surface Reduction (ASR) rules to block unsigned/untrusted executable files (such as .exe, .dll, or .scr) from running from USB removable drives.
  • M1033 Limit Software Installation (for T1059) : Prevent user installation of unrequired command and scripting interpreters.
  • M1045 Code Signing (for T1059) : Where possible, only permit execution of signed scripts.
  • M1038 Execution Prevention (for T1059, T1068) : Use application control where appropriate. For example, PowerShell Constrained Language mode can be used to restrict access to sensitive or otherwise dangerous language elements such as those used to execute arbitrary Windows APIs or files (e.g., `Add-Type`).
  • M1049 Antivirus/Antimalware (for T1059) : Anti-virus can be used to automatically quarantine suspicious files.
  • M1026 Privileged Account Management (for T1059) : When PowerShell is necessary, consider restricting PowerShell execution policy to administrators. Be aware that there are methods of bypassing the PowerShell execution policy, depending on environment configuration. PowerShell JEA (Just Enough Administration) may also be used to sandbox administration and limit what c
  • M1047 Audit (for T1059) : Inventory systems for unauthorized command and scripting interpreter installations.
  • M1021 Restrict Web-Based Content (for T1059) : Script blocking extensions can help prevent the execution of scripts and HTA files that may commonly be used during the exploitation process. For malicious code served up through ads, adblockers can help prevent that code from executing in the first place.

Detection Generic guidance

  • Initial Access: Alert on unusual requests to the affected service (odd paths, oversized payloads, exploit strings) in WAF, reverse-proxy and application logs.
  • Lateral Movement: Watch for the compromised host authenticating to other internal systems it does not normally talk to.
  • Execution: Watch for the service process spawning shells or script interpreters (cmd.exe, powershell, sh, bash, python) via EDR process-tree rules.
  • Privilege Escalation: Alert on processes gaining SYSTEM/root unexpectedly, and on exploitation crashes of privileged services.

Response checklist Generic guidance

  1. Inventory: find every instance of the affected product and version (include internet-facing and forgotten ones).
  2. Patch or mitigate per the vendor advisory; if you cannot patch, remove internet exposure or apply the vendor workaround.
  3. Assume compromise if the system was exposed before patching: hunt for the indicators in the advisory and review logs back to the disclosure date.
  4. Rotate credentials and secrets stored on or used by the affected system if compromise cannot be ruled out.

Sources