SB2024060479 - Use-after-free in Linux kernel qualcomm emac driver



SB2024060479 - Use-after-free in Linux kernel qualcomm emac driver

Published: June 4, 2024 Updated: May 13, 2025

Security Bulletin ID SB2024060479
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) Use-after-free (CVE-ID: CVE-2021-47013)

CWE-ID: CWE-416 - Use After Free

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 use-after-free error within the emac_mac_tx_buf_send() function in drivers/net/ethernet/qualcomm/emac/emac-mac.c. A local user can escalate privileges on the system.


Remediation

Install update from vendor's website.