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ubuntucveUbuntu.comUB:CVE-2017-18509
HistoryAug 13, 2019 - 12:00 a.m.

CVE-2017-18509

2019-08-1300:00:00
ubuntu.com
ubuntu.com
14

7.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

7.2 High

CVSS2

Access Vector

LOCAL

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

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

0.002 Low

EPSS

Percentile

56.9%

An issue was discovered in net/ipv6/ip6mr.c in the Linux kernel before
4.11. By setting a specific socket option, an attacker can control a
pointer in kernel land and cause an inet_csk_listen_stop general protection
fault, or potentially execute arbitrary code under certain circumstances.
The issue can be triggered as root (e.g., inside a default LXC container or
with the CAP_NET_ADMIN capability) or after namespace unsharing. This
occurs because sk_type and protocol are not checked in the appropriate part
of the ip6_mroute_* functions. NOTE: this affects Linux distributions that
use 4.9.x longterm kernels before 4.9.187.

7.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

7.2 High

CVSS2

Access Vector

LOCAL

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

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

0.002 Low

EPSS

Percentile

56.9%