CVE-2017-2636

Description

Race condition in drivers/tty/n_hdlc.c in the Linux kernel through 4.10.1 allows local users to gain privileges or cause a denial of service (double free) by setting the HDLC line discipline.

Category

7.0
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.53%
Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory debian.org Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory redhat.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://access.redhat.com/errata/RHSA-2017:0892 third party advisory vendor advisory
http://www.securityfocus.com/bid/96732 third party advisory vdb entry
http://www.securitytracker.com/id/1037963 third party advisory vdb entry
https://access.redhat.com/errata/RHSA-2017:0932 third party advisory vendor advisory
http://www.openwall.com/lists/oss-security/2017/03/07/6 patch mailing list third party advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1428319 mitigation third party advisory issue tracking
https://a13xp0p0v.github.io/2017/03/24/CVE-2017-2636.html third party advisory
https://access.redhat.com/errata/RHSA-2017:1125 third party advisory vendor advisory
https://access.redhat.com/errata/RHSA-2017:0933 third party advisory vendor advisory
https://access.redhat.com/errata/RHSA-2017:1232 third party advisory vendor advisory
https://access.redhat.com/errata/RHSA-2017:0931 third party advisory vendor advisory
http://www.debian.org/security/2017/dsa-3804 third party advisory vendor advisory
https://access.redhat.com/errata/RHSA-2017:1233 third party advisory vendor advisory
https://access.redhat.com/errata/RHSA-2017:1488 third party advisory vendor advisory
https://access.redhat.com/errata/RHSA-2017:0986 third party advisory vendor advisory
https://access.redhat.com/errata/RHSA-2017:1126 third party advisory vendor advisory

Frequently Asked Questions

What is the severity of CVE-2017-2636?
CVE-2017-2636 has been scored as a high severity vulnerability.
How to fix CVE-2017-2636?
To fix CVE-2017-2636, 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-2017-2636 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2017-2636 is being actively exploited. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.
© 2025 Under My Watch. All Rights Reserved.