What is CVE-2017-17863?

CVE-2017-17863 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10, classified as a Integer Overflow flaw (CWE-190). CVE-2017-17863 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2017-17863?

CVE-2017-17863 has a CVSS score of 7.8 out of 10, rated High severity. The vector string is CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Is there a patch available for CVE-2017-17863?

No patch is currently available for CVE-2017-17863. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

Is CVE-2017-17863 actively exploited?

CVE-2017-17863 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is Integer Overflow (CWE-190)?

The product performs a calculation that can produce an integer overflow, leading to unexpected values. See MITRE CWE for full details: https://cwe.mitre.org/data/definitions/190.html

CVE-2017-17863

High

kernel/bpf/verifier.c in the Linux kernel 4.9.x through 4.9.71 does not check the relationship between pointer values and the BPF stack, which allows local users to cause a denial of service (integer overflow or invalid memory access) or possibly have unspecified other impact.

Package Linux Kernel

Published 2017-12-27

Last modified 2026-05-13

CVSS version 3.0

Patch available

Awaiting data

CVSS 3.0 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:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness type

CWE-190

CVE-2017-17863 is a Integer Overflow vulnerability

What is Integer Overflow?

The product performs a calculation that can produce an integer overflow, leading to unexpected values. Learn more on MITRE CWE

References

The following references provide additional information about CVE-2017-17863 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Securityfocus
http://www.securityfocus.com/bid/102321

Third Party Advisory VDB Entry
Securitytracker
http://www.securitytracker.com/id/1040058

Third Party Advisory VDB Entry
Ubuntu Security
https://usn.ubuntu.com/3523-3/
Ubuntu Security
https://usn.ubuntu.com/usn/usn-3523-2/
Debian Security
https://www.debian.org/security/2017/dsa-4073

Third Party Advisory
Kernel patch commit
https://anonscm.debian.org/cgit/kernel/linux.git/tree/debian/patches/bugfix/all/bpf-reject-out-of-bounds-stack-pointer-calculation.patch?h=stretch-security
Patch
Kernel patch commit
https://www.spinics.net/lists/stable/msg206985.html
Patch

Details

CVE ID CVE-2017-17863

Severity High

CVSS score 7.8 / 10

CVSS version 3.0

Published 2017-12-27

Modified 2026-05-13

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2017-17863?

CVE-2017-17863 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10 , classified as an Integer Overflow flaw (CWE-190) . CVE-2017-17863 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2017-17863?

CVE-2017-17863 has a CVSS score of 7.8 out of 10, rated High severity (CVSS 3.0). The vector string is CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Is there a patch available for CVE-2017-17863?

No patch is currently available for CVE-2017-17863. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
Is CVE-2017-17863 actively exploited?

No — CVE-2017-17863 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.
What is Integer Overflow (CWE-190)?

The product performs a calculation that can produce an integer overflow, leading to unexpected values. View CWE-190 on MITRE CWE →