SB20240608179 - Race condition in Linux kernel ipv4

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Main Vulnerability Database SB20240608179

SB20240608179 - Race condition in Linux kernel ipv4

Published: June 8, 2024 Updated: May 13, 2025

Security Bulletin ID SB20240608179
CSH Severity
Low
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Local access
Highest impact Code execution

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Race condition (CVE-ID: CVE-2021-47248)

CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear


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

The vulnerability exists due to a race condition within the udpv6_destroy_sock() function in net/ipv6/udp.c, within the udp_destroy_sock() and udp_abort() functions in net/ipv4/udp.c. A local user can escalate privileges on the system.


Remediation

Install update from vendor's website.

References