SB2024073116 - Use-after-free in Linux kernel wangxun libwx driver

Description

This security bulletin contains information about 1 vulnerability.

1) Use-after-free (CVE-ID: CVE-2024-42112)

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 txgbe_open() and txgbe_remove() functions in drivers/net/ethernet/wangxun/txgbe/txgbe_main.c, within the wx_free_irq() and ngbe_close() functions in drivers/net/ethernet/wangxun/ngbe/ngbe_main.c, within the wx_setup_isb_resources() and wx_free_all_tx_resources() functions in drivers/net/ethernet/wangxun/libwx/wx_lib.c. A local user can escalate privileges on the system.

Remediation

Install update from vendor's website.

References

• https://git.kernel.org/stable/c/efdc3f54299835ddef23bea651c753c4d467010b
• https://git.kernel.org/stable/c/935124dd5883b5de68dc5a94f582480a10643dc9
• https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.10