CVE-2017-1000363

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.

Category

7.8
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.41%
Vendor Advisory debian.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://www.securityfocus.com/bid/98651 third party advisory vdb entry
https://alephsecurity.com/vulns/aleph-2017023 third party advisory
http://www.debian.org/security/2017/dsa-3945 third party advisory vendor advisory

Frequently Asked Questions

What is the severity of CVE-2017-1000363?
CVE-2017-1000363 has been scored as a high severity vulnerability.
How to fix CVE-2017-1000363?
To fix CVE-2017-1000363, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2017-1000363 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2017-1000363 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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