CVE-2017-2636

high

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.

References

http://www.debian.org/security/2017/dsa-3804

http://www.openwall.com/lists/oss-security/2017/03/07/6

http://www.securityfocus.com/bid/96732

http://www.securitytracker.com/id/1037963

https://a13xp0p0v.github.io/2017/03/24/CVE-2017-2636.html

https://access.redhat.com/errata/RHSA-2017:0892

https://access.redhat.com/errata/RHSA-2017:0931

https://access.redhat.com/errata/RHSA-2017:0932

https://access.redhat.com/errata/RHSA-2017:0933

https://access.redhat.com/errata/RHSA-2017:0986

https://access.redhat.com/errata/RHSA-2017:1125

https://access.redhat.com/errata/RHSA-2017:1126

https://access.redhat.com/errata/RHSA-2017:1232

https://access.redhat.com/errata/RHSA-2017:1233

https://access.redhat.com/errata/RHSA-2017:1488

https://bugzilla.redhat.com/show_bug.cgi?id=1428319

Details

Source: MITRE

Published: 2017-03-07

Updated: 2018-01-05

Type: CWE-362

Risk Information

CVSS v2

Base Score: 7.2

Vector: AV:L/AC:L/Au:N/C:C/I:C/A:C

Impact Score: 10

Exploitability Score: 3.9

Severity: HIGH

CVSS v3

Base Score: 7.8

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Impact Score: 5.9

Exploitability Score: 1.8

Severity: HIGH