SB2025120122 - Red Hat Enterprise Linux 8 update for kernel
Published: December 1, 2025
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 6 secuirty vulnerabilities.
1) Use-after-free (CVE-ID: CVE-2025-38724)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the nfsd4_setclientid_confirm() function in fs/nfsd/nfs4state.c. A local user can escalate privileges on the system.
2) Race condition (CVE-ID: CVE-2025-39825)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a race condition within the cifs_rename2() function in fs/smb/client/inode.c. A local user can escalate privileges on the system.
3) Improper error handling (CVE-ID: CVE-2025-39883)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper error handling within the unpoison_memory() function in mm/memory-failure.c. A local user can perform a denial of service (DoS) attack.
4) Input validation error (CVE-ID: CVE-2025-39898)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper input validation within the e1000_set_eeprom() function in drivers/net/ethernet/intel/e1000e/ethtool.c. A local user can perform a denial of service (DoS) attack.
5) Buffer overflow (CVE-ID: CVE-2023-53513)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to memory corruption within the nbd_set_size() and nbd_add_socket() functions in drivers/block/nbd.c. A local user can perform a denial of service (DoS) attack.
6) Resource management error (CVE-ID: CVE-2025-39955)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to resource management error within the tcp_disconnect() function in net/ipv4/tcp.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.