CVE-2017-17855

Name: CVE-2017-17855
Creator: NVD / NIST
Published: 2017-12-27T17:08:20.25+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.8/10EPSS 0.42%

Last modified Jun 17, 2026

CVE-2017-17855 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. kernel/bpf/verifier.c in the Linux kernel through 4.14.8 allows local users to cause a denial of service (memory corruption) or possibly have unspecified other impact by leveraging improper use of pointers in place of scalars.. EPSS estimates a 0.42% chance of exploitation in the next 30 days.

Description

kernel/bpf/verifier.c in the Linux kernel through 4.14.8 allows local users to cause a denial of service (memory corruption) or possibly have unspecified other impact by leveraging improper use of pointers in place of scalars.

Metrics

CVSS 3.1

7.8/10

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

0.42%

33.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-119

Affected Software

Vendor	Product	Versions
Linux	Linux Kernel	>= 4.14, < 4.14.9
Debian	Debian Linux	9.0

References

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=179d1c5602997fef5a940c6ddcf31212cbfebd14Vendor Advisory
http://www.openwall.com/lists/oss-security/2017/12/21/2Mailing List, Third Party Advisory
https://github.com/torvalds/linux/commit/179d1c5602997fef5a940c6ddcf31212cbfebd14Patch, Third Party Advisory
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=179d1c5602997fef5a940c6ddcf31212cbfebd14Vendor Advisory
http://www.openwall.com/lists/oss-security/2017/12/21/2Mailing List, Third Party Advisory
https://github.com/torvalds/linux/commit/179d1c5602997fef5a940c6ddcf31212cbfebd14Patch, Third Party Advisory

Timeline

Published: Dec 27, 2017
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2017-17855?

How severe is CVE-2017-17855?

CVE-2017-17855 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 0.42% probability of exploitation in the next 30 days.

How do I fix CVE-2017-17855?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2017-17855?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST