SB2024103144 - Denial of service in FreeBSD ctl CAM Target Layer

CSH
CYBERSECURITY HELP
Sign In REGISTER

Main Vulnerability Database SB2024103144

SB2024103144 - Denial of service in FreeBSD ctl CAM Target Layer

Published: October 31, 2024

Security Bulletin ID SB2024103144
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Denial of service

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Resource management error (CVE-ID: CVE-2024-39281)

CWE-ID: CWE-399 - Resource Management Errors

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green


The vulnerability allows a malicious guest to perform a denial of service (DoS) attack.

The vulnerability exists due to improper management of internal resources in ctl(4) subsystem. The command ctl_persistent_reserve_out allows the caller to specify an arbitrary size which will be passed to the kernel's memory allocator. A malicious guest can pass an overly large value to the allocator and consume all available memory resources on the system, resulting in a denial of service (DoS) attack.


Remediation

Install update from vendor's website.

References