Integer underflow in Linux kernel - CVE-2024-50241

Vulnerability identifier: #VU100197

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-2024-50241

CWE-ID: CWE-191

Exploitation vector: Local access

Exploit availability: No public exploit available

The vulnerability allows a local user to execute arbitrary code.

The vulnerability exists due to integer underflow within the nfsd4_copy() function in fs/nfsd/nfs4proc.c. A local user can execute arbitrary code.

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

Install update from vendor's website.

Linux kernel - addressed in versions 5.10.231, 5.15.174, 6.1.119, 6.6.63, 6.11.7, 6.12
python3-perf-debuginfo - addressed in versions 5.10.0-136.103.0.184, 5.10.0-238.0.0.137, 5.10.0-238.0.0.140, 6.6.0-57.0.0.59
kernel - addressed in versions 5.10.0-136.103.0.184, 5.10.0-238.0.0.137, 5.10.0-238.0.0.140, 6.6.0-57.0.0.59
kernel-debuginfo - addressed in versions 5.10.0-136.103.0.184, 5.10.0-238.0.0.137, 5.10.0-238.0.0.140, 6.6.0-57.0.0.59
kernel-debugsource - addressed in versions 5.10.0-136.103.0.184, 5.10.0-238.0.0.137, 5.10.0-238.0.0.140, 6.6.0-57.0.0.59
kernel-devel - addressed in versions 5.10.0-136.103.0.184, 5.10.0-238.0.0.137, 5.10.0-238.0.0.140, 6.6.0-57.0.0.59
kernel-headers - addressed in versions 5.10.0-136.103.0.184, 5.10.0-238.0.0.137, 5.10.0-238.0.0.140, 6.6.0-57.0.0.59
kernel-source - addressed in versions 5.10.0-136.103.0.184, 5.10.0-238.0.0.137, 5.10.0-238.0.0.140, 6.6.0-57.0.0.59
kernel-tools-debuginfo - addressed in versions 5.10.0-136.103.0.184, 5.10.0-238.0.0.137, 5.10.0-238.0.0.140, 6.6.0-57.0.0.59
kernel-tools-devel - addressed in versions 5.10.0-136.103.0.184, 5.10.0-238.0.0.137, 5.10.0-238.0.0.140, 6.6.0-57.0.0.59
perf - addressed in versions 5.10.0-136.103.0.184, 5.10.0-238.0.0.137, 5.10.0-238.0.0.140, 6.6.0-57.0.0.59
perf-debuginfo - addressed in versions 5.10.0-136.103.0.184, 5.10.0-238.0.0.137, 5.10.0-238.0.0.140, 6.6.0-57.0.0.59
python3-perf - addressed in versions 5.10.0-136.103.0.184, 5.10.0-238.0.0.137, 5.10.0-238.0.0.140, 6.6.0-57.0.0.59
kernel-tools - addressed in versions 5.10.0-136.103.0.184, 5.10.0-238.0.0.137, 5.10.0-238.0.0.140, 6.6.0-57.0.0.59
bpftool-debuginfo - addressed in versions 5.10.0-238.0.0.137, 6.6.0-57.0.0.59
bpftool - addressed in versions 5.10.0-238.0.0.137, 6.6.0-57.0.0.59

• https://git.kernel.org/stable/c/e30a9a2f69c34a00a3cb4fd45c5d231929e66fb1
• https://git.kernel.org/stable/c/63fab04cbd0f96191b6e5beedc3b643b01c15889
• https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.231
• https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.174
• https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.119
• https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.11.7
• https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.12
• https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.63

• Integer underflow in Linux kernel nfsd
• openEuler 22.03 LTS SP3 update for kernel
• openEuler 22.03 LTS SP4 update for kernel
• openEuler 24.03 LTS update for kernel
• openEuler 22.03 LTS SP1 update for kernel