SB2025071541 - Red Hat Enterprise Linux 9 update for kernel 

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Main Vulnerability Database SB2025071541

SB2025071541 - Red Hat Enterprise Linux 9 update for kernel

Published: July 15, 2025

Security Bulletin ID SB2025071541
Severity
Low
Patch available
YES
Number of vulnerabilities 7
Exploitation vector Local access
Highest impact Code execution

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 7 secuirty vulnerabilities.


1) Use-after-free (CVE-ID: CVE-2025-21759)

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

The vulnerability exists due to a use-after-free error within the mld_send_cr() and igmp6_send() functions in net/ipv6/mcast.c. A local user can escalate privileges on the system.


2) Input validation error (CVE-ID: CVE-2023-52933)

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

The vulnerability exists due to improper input validation within the squashfs_xattr_lookup() function in fs/squashfs/xattr_id.c. A local user can perform a denial of service (DoS) attack.


3) Use-after-free (CVE-ID: CVE-2025-22004)

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

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


4) Use-after-free (CVE-ID: CVE-2025-22121)

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

The vulnerability exists due to a use-after-free error within the __ext4_xattr_check_block(), __xattr_check_inode(), ext4_xattr_ibody_get(), ext4_xattr_ibody_list(), ext4_get_inode_usage(), ext4_xattr_ibody_find() and sizeof() functions in fs/ext4/xattr.c, within the ext4_iget_extra_inode() function in fs/ext4/inode.c. A local user can escalate privileges on the system.


5) Use-after-free (CVE-ID: CVE-2025-23150)

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

The vulnerability exists due to a use-after-free error within the do_split() function in fs/ext4/namei.c. A local user can escalate privileges on the system.


6) Use-after-free (CVE-ID: CVE-2025-37738)

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

The vulnerability exists due to a use-after-free error within the ext4_xattr_inode_dec_ref_all() function in fs/ext4/xattr.c. A local user can escalate privileges on the system.


7) Out-of-bounds write (CVE-ID: CVE-2025-38110)

The vulnerability allows a local user to execute arbitrary code.

The vulnerability exists due to an out-of-bounds write within the __mdiobus_c45_read() and __mdiobus_c45_write() functions in drivers/net/phy/mdio_bus.c. A local user can execute arbitrary code.


Remediation

Install update from vendor's website.

References