CVE-2017-1000363: Debian Linux

High severity, CVSS 7.8. EPSS: 0.6% chance of exploitation in the next 30 days.

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.

Affected products

• Debian Debian Linux: version 8.0 only
• Linux Linux Kernel: from 2.6.12, before 3.2.91 (fixed in 3.2.91); from 3.3, before 3.10.106 (fixed in 3.10.106); from 3.11, before 3.16.46 (fixed in 3.16.46); from 3.17, before 3.18.55 (fixed in 3.18.55); from 3.19, before 4.1.41 (fixed in 4.1.41); from 4.2, before 4.4.70 (fixed in 4.4.70); …

Published 2017-07-17. Last modified 2026-06-17.