CVE-2018-25020: High severity Linux Linux kernel vulnerability
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.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
android/:linux_kernel:to a version that resolves this vulnerability.Fixed in :2022-06-05
Event History
Frequently Asked Questions
What is CVE-2018-25020?
CVE-2018-25020 is a vulnerability in the BPF subsystem in the Linux kernel before 4.17.
How does CVE-2018-25020 affect Linux?
CVE-2018-25020 can lead to an overflow in the BPF subsystem in the Linux kernel before 4.17.
Which software versions are affected by CVE-2018-25020?
CVE-2018-25020 affects Linux kernel versions up to but not including 4.17.
What is the severity of CVE-2018-25020?
CVE-2018-25020 has a severity rating of 7.8 (high).
How can I fix CVE-2018-25020?
To fix CVE-2018-25020, update your Linux kernel version to 4.17 or higher.