Vulnerability Monitor

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CVE-2017-2636

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.

Published

2017-03-07T22:59:00.157

Last Modified

2025-04-20T01:37:25.860

Status

Deferred

Source

[email protected]

Severity

CVSSv3.1: 7.0 (HIGH)

CVSSv2 Vector

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

Access Vector: LOCAL
Access Complexity: MEDIUM
Authentication: NONE
Confidentiality Impact: COMPLETE
Integrity Impact: COMPLETE
Availability Impact: COMPLETE

Exploitability Score

3.4

Impact Score

10.0

Weaknesses

Type: Primary
CWE-362
CWE-415

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Operating System	linux	linux_kernel	< 3.2.87	Yes
Operating System	linux	linux_kernel	< 3.10.106	Yes
Operating System	linux	linux_kernel	< 3.12.72	Yes
Operating System	linux	linux_kernel	< 3.16.42	Yes
Operating System	linux	linux_kernel	< 3.18.49	Yes
Operating System	linux	linux_kernel	< 4.1.49	Yes
Operating System	linux	linux_kernel	< 4.4.54	Yes
Operating System	linux	linux_kernel	< 4.9.15	Yes
Operating System	linux	linux_kernel	< 4.10.3	Yes
Operating System	debian	debian_linux	8.0	Yes

References

http://www.debian.org/security/2017/dsa-3804 Third Party Advisory ([email protected])
http://www.openwall.com/lists/oss-security/2017/03/07/6 Mailing List, Patch, Third Party Advisory ([email protected])
http://www.securityfocus.com/bid/96732 Third Party Advisory, VDB Entry ([email protected])
http://www.securitytracker.com/id/1037963 Third Party Advisory, VDB Entry ([email protected])
https://a13xp0p0v.github.io/2017/03/24/CVE-2017-2636.html Third Party Advisory ([email protected])
https://access.redhat.com/errata/RHSA-2017:0892 Third Party Advisory ([email protected])
https://access.redhat.com/errata/RHSA-2017:0931 Third Party Advisory ([email protected])
https://access.redhat.com/errata/RHSA-2017:0932 Third Party Advisory ([email protected])
https://access.redhat.com/errata/RHSA-2017:0933 Third Party Advisory ([email protected])
https://access.redhat.com/errata/RHSA-2017:0986 Third Party Advisory ([email protected])
https://access.redhat.com/errata/RHSA-2017:1125 Third Party Advisory ([email protected])
https://access.redhat.com/errata/RHSA-2017:1126 Third Party Advisory ([email protected])
https://access.redhat.com/errata/RHSA-2017:1232 Third Party Advisory ([email protected])
https://access.redhat.com/errata/RHSA-2017:1233 Third Party Advisory ([email protected])
https://access.redhat.com/errata/RHSA-2017:1488 Third Party Advisory ([email protected])
https://bugzilla.redhat.com/show_bug.cgi?id=1428319 Issue Tracking, Mitigation, Third Party Advisory ([email protected])
http://www.debian.org/security/2017/dsa-3804 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.openwall.com/lists/oss-security/2017/03/07/6 Mailing List, Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.securityfocus.com/bid/96732 Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)
http://www.securitytracker.com/id/1037963 Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)
https://a13xp0p0v.github.io/2017/03/24/CVE-2017-2636.html Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://access.redhat.com/errata/RHSA-2017:0892 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://access.redhat.com/errata/RHSA-2017:0931 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://access.redhat.com/errata/RHSA-2017:0932 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://access.redhat.com/errata/RHSA-2017:0933 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://access.redhat.com/errata/RHSA-2017:0986 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://access.redhat.com/errata/RHSA-2017:1125 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://access.redhat.com/errata/RHSA-2017:1126 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://access.redhat.com/errata/RHSA-2017:1232 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://access.redhat.com/errata/RHSA-2017:1233 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://access.redhat.com/errata/RHSA-2017:1488 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://bugzilla.redhat.com/show_bug.cgi?id=1428319 Issue Tracking, Mitigation, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)