SB20240806176 - Amazon Linux AMI update for kernel
Published: August 6, 2024
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 3 secuirty vulnerabilities.
1) Improper locking (CVE-ID: CVE-2024-26923)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to improper locking within the unix_gc() function in net/unix/garbage.c due to garbage collector does not take into account the risk of embryo getting enqueued during the garbage collection. A local user can execute arbitrary code with elevated privileges.
2) Improper locking (CVE-ID: CVE-2024-26925)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper locking within the __nf_tables_abort() and nf_tables_abort() functions in net/netfilter/nf_tables_api.c. A local user can perform a denial of service (DoS) attack.
3) Use-after-free (CVE-ID: CVE-2024-26928)
The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a use-after-free error within the cifs_debug_files_proc_show() function in fs/smb/client/cifs_debug.c. A remote non-authenticated attacker can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.