CVE-2018-25020 Integer overflow in n/a
An integer overflow in the Linux kernel BPF subsystem allows attackers to execute arbitrary code or escalate privileges via crafted BPF programs.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2018-25020?
CVE-2018-25020 is a high-severity vulnerability in Linux kernel, published on 8 Dec 2021. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
The BPF subsystem in the Linux kernel before 4.17 mishandles situations with a long jump over an instruction sequence where inner instructions require substantial expansions into multiple BPF instructions, leading to an overflow. This affects kernel/bpf/core.c and net/core/filter.c.
Weakness: CWE-120
Which versions are affected by CVE-2018-25020?
It affects 10 products.
Products include Linux kernel, Netapp Cloud Backup, Netapp H300e Firmware, Netapp H300s Firmware, Netapp H410c Firmware, Netapp H410s Firmware and 4 more.
How do I fix CVE-2018-25020?
Apply the vendor's patch.
Is CVE-2018-25020 being exploited?
There is no known exploitation of CVE-2018-25020 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as A-210498909, DEBIAN-CVE-2018-25020, GHSA-3p95-f3g8-fcgq, PUB-A-210498909, UBUNTU-CVE-2018-25020.