#VU99048 Input validation error in Linux kernel - CVE-2024-47702
Published: October 22, 2024 / Updated: May 12, 2025
Vulnerability identifier: #VU99048
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2024-47702
CWE-ID: CWE-20
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerable software:
Linux kernel
Linux kernel
Software vendor:
Linux Foundation
Linux Foundation
Description
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper input validation within the bpf_skb_is_valid_access(), xdp_is_valid_access() and flow_dissector_is_valid_access() functions in net/core/filter.c, within the check_packet_access() and check_mem_access() functions in kernel/bpf/verifier.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.
External links
- https://git.kernel.org/stable/c/f1620c93a1ec950d87ef327a565d3907736d3340
- https://git.kernel.org/stable/c/f09757fe97a225ae505886eac572e4cbfba96537
- https://git.kernel.org/stable/c/92de36080c93296ef9005690705cba260b9bd68a
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.10.13
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.11.2
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.12