CVE-2017-1000363

HIGH

Linux Kernel 2.6.12-3.2.90 - Out-of-Bounds Write in lp.c parport_nr Array

Title source: llm
STIX 2.1

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.

References (3)

Core 3
Core References
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/98651
Third Party Advisory x_refsource_misc
https://alephsecurity.com/vulns/aleph-2017023
Third Party Advisory vendor-advisory x_refsource_debian
http://www.debian.org/security/2017/dsa-3945

Scores

CVSS v3 7.8
EPSS 0.0064
EPSS Percentile 46.5%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Details

CWE
CWE-787
Status published
Products (3)
debian/debian_linux 8.0
linux/linux_kernel 4.12 rc1
linux/linux_kernel 2.6.12 - 3.2.91
Published Jul 17, 2017
Tracked Since Feb 18, 2026