CVE-2017-2636 Information

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.

CVSS Vector

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

Reference

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

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

7.8