SB2024071318 - Use-after-free in Linux kernel

CSH
CYBERSECURITY HELP
Sign In REGISTER

Main Vulnerability Database SB2024071318

SB2024071318 - Use-after-free in Linux kernel

Published: July 13, 2024 Updated: May 13, 2025

Security Bulletin ID SB2024071318
Severity
Low
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Local access
Highest impact Code execution

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 security vulnerability.


1) Use-after-free (CVE-ID: CVE-2024-40947)

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a use-after-free error within the smack_post_notification() function in security/smack/smack_lsm.c, within the selinux_audit_rule_free() and selinux_audit_rule_init() functions in security/selinux/ss/services.c, within the security_key_getsecurity() function in security/security.c, within the ima_free_rule(), ima_lsm_copy_rule(), ima_lsm_update_rule() and ima_lsm_rule_init() functions in security/integrity/ima/ima_policy.c, within the aa_audit_rule_free() and aa_audit_rule_init() functions in security/apparmor/audit.c, within the audit_data_to_entry() and audit_dupe_lsm_field() functions in kernel/auditfilter.c. A local user can escalate privileges on the system.


Remediation

Install update from vendor's website.

References