CVE-2018-25020

High

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.

Package Linux Kernel
Published 2021-12-08
Last modified 2024-11-21
CVSS version 3.1
Patch available
Awaiting data

CVSS 3.1 score

7.8

out of 10
High
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness type

CWE-120

CVE-2018-25020 is classified as CWE-120

See CWE-120 on MITRE CWE for full details on this weakness type.

References

3 total

Frequently asked questions

  • What is CVE-2018-25020?

    CVE-2018-25020 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10 . CVE-2018-25020 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

  • What is the CVSS score for CVE-2018-25020?

    CVE-2018-25020 has a CVSS score of 7.8 out of 10, rated High severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H .

  • Is there a patch available for CVE-2018-25020?

    Monitor the NIST NVD and your Linux distribution's security advisories for CVE-2018-25020 patch availability.

  • Is CVE-2018-25020 actively exploited?

    No. CVE-2018-25020 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

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