SB2025102723 - Red Hat Enterprise Linux 8 update for kernel 

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Main Vulnerability Database SB2025102723

SB2025102723 - Red Hat Enterprise Linux 8 update for kernel

Published: October 27, 2025

Security Bulletin ID SB2025102723
Severity
Low
Patch available
YES
Number of vulnerabilities 6
Exploitation vector Local access
Highest impact Code execution

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 6 secuirty vulnerabilities.


1) Input validation error (CVE-ID: CVE-2023-53297)

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to improper input validation within the l2cap_disconnect_rsp() function in net/bluetooth/l2cap_core.c. A local user can perform a denial of service (DoS) attack.


2) Buffer overflow (CVE-ID: CVE-2025-39817)

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to memory corruption within the efivarfs_d_compare() function in fs/efivarfs/super.c. A local user can perform a denial of service (DoS) attack.


3) Use-after-free (CVE-ID: CVE-2023-53386)

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

The vulnerability exists due to a use-after-free error within the hci_uuids_clear() function in net/bluetooth/hci_core.c. A local user can escalate privileges on the system.


4) Use-after-free (CVE-ID: CVE-2022-50386)

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

The vulnerability exists due to a use-after-free error within the l2cap_connect_create_rsp() function in net/bluetooth/l2cap_core.c. A local user can escalate privileges on the system.


5) Buffer overflow (CVE-ID: CVE-2025-39849)

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

The vulnerability exists due to memory corruption within the __cfg80211_connect_result() function in net/wireless/sme.c. A local user can escalate privileges on the system.


6) Use-after-free (CVE-ID: CVE-2025-39841)

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

The vulnerability exists due to a use-after-free error within the lpfc_nvmet_defer_rcv() function in drivers/scsi/lpfc/lpfc_nvmet.c. A local user can escalate privileges on the system.


Remediation

Install update from vendor's website.

References