CVE-2017-1000363

Name: CVE-2017-1000363
Creator: NVD / NIST
Published: 2017-07-17T13:18:18.593+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.8/10EPSS 0.64%

Last modified Jun 17, 2026

CVE-2017-1000363 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. Linux drivers/char/lp.c Out-of-Bounds Write. Due to a missing bounds check, and the fact that parport_ptr integer is static, a 'secure boot' kernel command line adversary (can happen due to bootloader vulns, e.g. EPSS estimates a 0.64% chance of exploitation in the next 30 days.

Description

Linux drivers/char/lp.c Out-of-Bounds Write. Due to a missing bounds check, and the fact that parport_ptr integer is static, a 'secure boot' kernel command line adversary (can happen due to bootloader vulns, e.g. Google Nexus 6's CVE-2016-10277, where due to a vulnerability the adversary has partial control over the command line) can overflow the parport_nr array in the following code, by appending many (>LP_NO) 'lp=none' arguments to the command line.

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

0.64%

45.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-787

Affected Software

Vendor	Product	Versions	Update
Linux	Linux Kernel	>= 2.6.12, < 3.2.91	—
Linux	Linux Kernel	>= 3.3, < 3.10.106	—
Linux	Linux Kernel	>= 3.11, < 3.16.46	—
Linux	Linux Kernel	>= 3.17, < 3.18.55	—
Linux	Linux Kernel	>= 3.19, < 4.1.41	—
Linux	Linux Kernel	>= 4.2, < 4.4.70	—
Linux	Linux Kernel	>= 4.5, < 4.9.30	—
Linux	Linux Kernel	>= 4.10, < 4.11.3	—
Linux	Linux Kernel	4.12	Rc1
Debian	Debian Linux	8.0	—

References

http://www.debian.org/security/2017/dsa-3945Third Party Advisory
http://www.securityfocus.com/bid/98651Third Party Advisory, VDB Entry
https://alephsecurity.com/vulns/aleph-2017023Third Party Advisory
http://www.debian.org/security/2017/dsa-3945Third Party Advisory
http://www.securityfocus.com/bid/98651Third Party Advisory, VDB Entry
https://alephsecurity.com/vulns/aleph-2017023Third Party Advisory

Timeline

Published: Jul 17, 2017
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2017-1000363?

How severe is CVE-2017-1000363?

CVE-2017-1000363 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 0.64% probability of exploitation in the next 30 days.

How do I fix CVE-2017-1000363?

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-2017-1000363?

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

Scan your code now

Source: NVD / NIST