cbcvebase.
CVE-2017-1000363
published 2017-07-17

CVE-2017-1000363: 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…

PriorityP338high7.8CVSS 3.1
AVLACLPRLUINSUCHIHAH
EPSS
0.64%
47.1th percentile
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

17 ranges
VendorProductVersion rangeFixed in
debiandebian_linux
debianlinux< linux 4.9.30-1 (bookworm)linux 4.9.30-1 (bookworm)
linuxlinux_kernel
linuxlinux_kernel>= 0 < 4.9.30-14.9.30-1
linuxlinux_kernel>= 0 < 4.9.30-14.9.30-1
linuxlinux_kernel>= 0 < 4.9.30-14.9.30-1
linuxlinux_kernel>= 0 < 4.9.30-14.9.30-1
linuxlinux_kernel>= 0 < 3.13.0-123.1723.13.0-123.172
linuxlinux_kernel>= 0 < 4.4.0-83.1064.4.0-83.106
linuxlinux_kernel>= 2.6.12 < 3.2.913.2.91
linuxlinux_kernel>= 3.11 < 3.16.463.16.46
linuxlinux_kernel>= 3.17 < 3.18.553.18.55
linuxlinux_kernel>= 3.19 < 4.1.414.1.41
linuxlinux_kernel>= 3.3 < 3.10.1063.10.106
linuxlinux_kernel>= 4.10 < 4.11.34.11.3
linuxlinux_kernel>= 4.2 < 4.4.704.4.70
linuxlinux_kernel>= 4.5 < 4.9.304.9.30

CVSS provenance

nvdv3.17.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
nvdv2.07.2HIGHAV:L/AC:L/Au:N/C:C/I:C/A:C
osv7.8HIGH
vendor_debian7.8LOW
vendor_redhat7.8HIGH
vendor_ubuntu7.8HIGH
Stop checking back — get the weekly exploitation signal.

Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.