SB20251013104 - Ubuntu update for linux-oracle



SB20251013104 - Ubuntu update for linux-oracle

Published: October 13, 2025

Security Bulletin ID SB20251013104
Severity
Low
Patch available
YES
Number of vulnerabilities 8
Exploitation vector Local access
Highest impact Code execution

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 8 secuirty vulnerabilities.


1) Use-after-free (CVE-ID: CVE-2025-38618)

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

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


2) Improper locking (CVE-ID: CVE-2025-38617)

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

The vulnerability exists due to improper locking within the packet_set_ring() function in net/packet/af_packet.c. A local user can perform a denial of service (DoS) attack.


3) Use-after-free (CVE-ID: CVE-2025-38477)

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

The vulnerability exists due to a use-after-free error within the qfq_change_class(), qfq_delete_class(), qfq_dump_class() and qfq_dump_class_stats() functions in net/sched/sch_qfq.c. A local user can escalate privileges on the system.


4) Use-after-free (CVE-ID: CVE-2025-38350)

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

The vulnerability exists due to a use-after-free error within the qdisc_alloc_handle() and qdisc_tree_reduce_backlog() functions in net/sched/sch_api.c. A local user can escalate privileges on the system.


5) Use-after-free (CVE-ID: CVE-2025-37785)

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_check_dir_entry() function in fs/ext4/dir.c. A local user can escalate privileges on the system.


6) Out-of-bounds read (CVE-ID: CVE-2025-37752)

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

The vulnerability exists due to an out-of-bounds read error within the sfq_change() function in net/sched/sch_sfq.c. A local user can perform a denial of service (DoS) attack.


7) Use-after-free (CVE-ID: CVE-2025-21796)

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

The vulnerability exists due to a use-after-free error within the posix_acl_release() function in fs/nfsd/nfs3acl.c, within the posix_acl_release() function in fs/nfsd/nfs2acl.c. A local user can escalate privileges on the system.


8) Out-of-bounds read (CVE-ID: CVE-2024-57996)

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

The vulnerability exists due to an out-of-bounds read error within the sfq_change() function in net/sched/sch_sfq.c. A local user can perform a denial of service (DoS) attack.


Remediation

Install update from vendor's website.