SB20260202103 - Ubuntu update for linux 

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Main Vulnerability Database SB20260202103

SB20260202103 - Ubuntu update for linux

Published: February 2, 2026

Security Bulletin ID SB20260202103
Severity
Low
Patch available
YES
Number of vulnerabilities 3
Exploitation vector Local access
Highest impact Code execution

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 3 secuirty vulnerabilities.


1) Input validation error (CVE-ID: CVE-2025-40019)

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

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


2) Use-after-free (CVE-ID: CVE-2025-21726)

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

The vulnerability exists due to a use-after-free error within the padata_reorder() and invoke_padata_reorder() functions in kernel/padata.c. A local user can escalate privileges on the system.


3) Input validation error (CVE-ID: CVE-2022-49698)

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

The vulnerability exists due to improper input validation within the DEFINE_PER_CPU(), nft_ng_random_gen() and nft_ng_random_init() functions in net/netfilter/nft_numgen.c, within the DEFINE_PER_CPU(), nft_meta_get_eval_ifname(), nft_meta_get_eval() and nft_meta_get_init() functions in net/netfilter/nft_meta.c. A local user can perform a denial of service (DoS) attack.


Remediation

Install update from vendor's website.

References