Use-after-free in Linux kernel - CVE-2024-53186

Vulnerability identifier: #VU102050

CSH Severity: Low

CVSS v4: 8.5 [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]

CVE-ID: CVE-2024-53186

CWE-ID: CWE-416

Exploitation vector: Local access

Exploit availability: No public exploit available

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

The vulnerability exists due to a use-after-free error within the handle_ksmbd_work() function in fs/smb/server/server.c. A local user can escalate privileges on the system.

Linux kernel
openEuler
bpftool
kernel
python3-perf-debuginfo
python3-perf
perf-debuginfo
perf
kernel-tools-devel
kernel-tools-debuginfo
kernel-tools
kernel-source
kernel-headers
kernel-devel
kernel-debugsource
kernel-debuginfo
bpftool-debuginfo

Install update from vendor's website.

Linux kernel - update to 6.11.11
bpftool - addressed in versions 6.6.0-73.0.0.65, 6.6.0-73.0.0.77
kernel - addressed in versions 6.6.0-73.0.0.65, 6.6.0-73.0.0.77
python3-perf-debuginfo - addressed in versions 6.6.0-73.0.0.65, 6.6.0-73.0.0.77
python3-perf - addressed in versions 6.6.0-73.0.0.65, 6.6.0-73.0.0.77
perf-debuginfo - addressed in versions 6.6.0-73.0.0.65, 6.6.0-73.0.0.77
perf - addressed in versions 6.6.0-73.0.0.65, 6.6.0-73.0.0.77
kernel-tools-devel - addressed in versions 6.6.0-73.0.0.65, 6.6.0-73.0.0.77
kernel-tools-debuginfo - addressed in versions 6.6.0-73.0.0.65, 6.6.0-73.0.0.77
kernel-tools - addressed in versions 6.6.0-73.0.0.65, 6.6.0-73.0.0.77
kernel-source - addressed in versions 6.6.0-73.0.0.65, 6.6.0-73.0.0.77
kernel-headers - addressed in versions 6.6.0-73.0.0.65, 6.6.0-73.0.0.77
kernel-devel - addressed in versions 6.6.0-73.0.0.65, 6.6.0-73.0.0.77
kernel-debugsource - addressed in versions 6.6.0-73.0.0.65, 6.6.0-73.0.0.77
kernel-debuginfo - addressed in versions 6.6.0-73.0.0.65, 6.6.0-73.0.0.77
bpftool-debuginfo - addressed in versions 6.6.0-73.0.0.65, 6.6.0-73.0.0.77

• https://git.kernel.org/stable/c/96261adb998a3b513468b6ce17dbec76be5507d4
• https://git.kernel.org/stable/c/9a8c5d89d327ff58e9b2517f8a6afb4181d32c6e
• https://git.kernel.org/stable/c/a96f9eb7add30ba0fafcfe7b7aca090978196800
• https://git.kernel.org/stable/c/f20b77f7897e6aab9ce5527e6016ad2be5d70a33
• https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.11.11

• Use-after-free in Linux kernel smb server
• openEuler 24.03 LTS update for kernel
• openEuler 24.03 LTS SP1 update for kernel