CVE-2017-18017

CVE Details

Release Date:	2018-01-03
Impact:	Moderate	What is this?

Description

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.

See more information about CVE-2017-18017 from MITRE CVE dictionary and NIST NVD

NOTE: The following CVSS metrics and score provided are preliminary and subject to review.

CVSS v3 metrics

Base Score:	9.8
Vector String:	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Version:	3.0
Attack Vector:	Network
Attack Complexity:	Low
Privileges Required:	None
User Interaction:	None
Scope:	Unchanged
Confidentiality Impact:	High
Integrity Impact:	High
Availability Impact:	High

Errata information

Platform	Errata	Release Date
Oracle Linux version 6 (dtrace-modules-3.8.13-118.26.1.el6uek)	ELSA-2018-4268	2018-11-08
Oracle Linux version 6 (dtrace-modules-3.8.13-118.29.1.el6uek)	ELSA-2019-4316	2019-01-04
Oracle Linux version 6 (kernel)	ELSA-2018-1319	2018-05-08
Oracle Linux version 6 (kernel-uek)	ELSA-2018-4161	2018-07-10
Oracle Linux version 6 (kernel-uek)	ELSA-2018-4268	2018-11-08
Oracle Linux version 6 (kernel-uek)	ELSA-2019-4316	2019-01-04
Oracle Linux version 7 (dtrace-modules-3.8.13-118.26.1.el7uek)	ELSA-2018-4268	2018-11-08
Oracle Linux version 7 (dtrace-modules-3.8.13-118.29.1.el7uek)	ELSA-2019-4316	2019-01-04
Oracle Linux version 7 (kernel)	ELSA-2018-1062	2018-04-16
Oracle Linux version 7 (kernel-uek)	ELSA-2018-4161	2018-07-10
Oracle Linux version 7 (kernel-uek)	ELSA-2018-4268	2018-11-08
Oracle Linux version 7 (kernel-uek)	ELSA-2019-4316	2019-01-04
Oracle VM version 3.4 (kernel-uek)	OVMSA-2018-0236	2018-07-10