SB2024123008 - Memory leak in Linux kernel apparmor
Published: December 30, 2024 Updated: May 12, 2025
Security Bulletin ID
SB2024123008
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Memory leak (CVE-ID: CVE-2024-56741)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to memory leak within the policy_unpack_test_unpack_strdup_with_null_name(), policy_unpack_test_unpack_strdup_with_name() and policy_unpack_test_unpack_strdup_out_of_bounds() functions in security/apparmor/policy_unpack_test.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/2a9b68f2dc6812bd1b8880b5c00e60203d6f61f6
- https://git.kernel.org/stable/c/5354599855a9b5568e05ce686119ee3ff8b19bd5
- https://git.kernel.org/stable/c/59a149e7c38e7b76616c8b333fc6aa5b6fb2293c
- https://git.kernel.org/stable/c/7290f59231910ccba427d441a6e8b8c6f6112448
- https://git.kernel.org/stable/c/89265f88701e54dde255ddf862093baeca57548c
- https://git.kernel.org/stable/c/d62ee5739a66644b0e7f11e657d562458cdcdea3
- https://git.kernel.org/stable/c/f856246ff6da25c4f8fdd73a9c875e878b085e9f
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.231