SB2025121114 - Ubuntu update for linux 

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Main Vulnerability Database SB2025121114

SB2025121114 - Ubuntu update for linux

Published: December 11, 2025

Security Bulletin ID SB2025121114
Severity
Low
Patch available
YES
Number of vulnerabilities 4
Exploitation vector Local access
Highest impact Code execution

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 4 secuirty vulnerabilities.


1) Use-after-free (CVE-ID: CVE-2025-40018)

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

The vulnerability exists due to a use-after-free error within the __ip_vs_ftp_exit() and ip_vs_ftp_init() functions in net/netfilter/ipvs/ip_vs_ftp.c. A local user can escalate privileges on the system.


2) Use-after-free (CVE-ID: CVE-2025-39993)

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

The vulnerability exists due to a use-after-free error within the display_open(), send_packet(), vfd_write(), lcd_write() and imon_disconnect() functions in drivers/media/rc/imon.c. A local user can escalate privileges on the system.


3) Input validation error (CVE-ID: CVE-2025-39964)

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

The vulnerability exists due to improper input validation within the include/crypto/if_alg.h. A local user can perform a denial of service (DoS) attack.


4) Out-of-bounds read (CVE-ID: CVE-2025-39946)

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 tls_rx_msg_size() function in net/tls/tls_sw.c. A local user can perform a denial of service (DoS) attack.


Remediation

Install update from vendor's website.

References