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ubuntucveUbuntu.comUB:CVE-2017-18017
HistoryJan 03, 2018 - 12:00 a.m.

CVE-2017-18017

2018-01-0300:00:00
ubuntu.com
ubuntu.com
23

9.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

10 High

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

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

0.954 High

EPSS

Percentile

99.3%

The tcpmss_mangle_packet function in net/netfilter/xt_TCPMSS.c in the Linux
kernel before 4.11, and 4.9.x before 4.9.36, allows remote attackers to
cause a denial of service (use-after-free and memory corruption) or
possibly have unspecified other impact by leveraging the presence of
xt_TCPMSS in an iptables action.

OSVersionArchitecturePackageVersionFilename
ubuntu14.04noarchlinux< 3.13.0-142.191UNKNOWN
ubuntu16.04noarchlinux< 4.4.0-89.112UNKNOWN
ubuntu16.04noarchlinux-aws< 4.4.0-1028.37UNKNOWN
ubuntu16.04noarchlinux-gcp< 4.13.0-1002.5UNKNOWN
ubuntu16.04noarchlinux-gke< 4.4.0-1024.24UNKNOWN
ubuntu16.04noarchlinux-hwe< 4.13.0-26.29~16.04.2UNKNOWN
ubuntu18.04noarchlinux-hwe-edge< 4.18.0-8.9~18.04.1UNKNOWN
ubuntu16.04noarchlinux-hwe-edge< 4.13.0-26.29~16.04.2UNKNOWN
ubuntu14.04noarchlinux-lts-xenial< 4.4.0-89.112~14.04.1UNKNOWN
ubuntu16.04noarchlinux-raspi2< 4.4.0-1067.75UNKNOWN
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9.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

10 High

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

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

0.954 High

EPSS

Percentile

99.3%