NVD - CVE-2017-18017

CVE-2017-18017 Detail

Modified

This vulnerability has been modified since it was last analyzed by the NVD. It is awaiting reanalysis which may result in further changes to the information provided.

Current 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.

Source: MITRE
Description Last Modified: 01/03/2018
View Analysis Description

Impact

CVSS v3.0 Severity and Metrics:

Base Score: 9.8 CRITICAL
Vector: AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H (V3 legend)
Impact Score: 5.9
Exploitability Score: 3.9

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): High
Availability (A): High

CVSS v2.0 Severity and Metrics:

Base Score: 10.0 HIGH
Vector: (AV:N/AC:L/Au:N/C:C/I:C/A:C) (V2 legend)
Impact Subscore: 10.0
Exploitability Subscore: 10.0

Access Vector (AV): Network
Access Complexity (AC): Insufficient_Info
Authentication (AU): None
Confidentiality (C): Complete
Integrity (I): Complete
Availability (A): Complete
Additional Information:
Allows unauthorized disclosure of information
Allows unauthorized modification
Allows disruption of service

References to Advisories, Solutions, and Tools

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Hyperlink	Resource
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=2638fd0f92d4397884fd991d8f4925cb3f081901	Patch Third Party Advisory
http://patchwork.ozlabs.org/patch/746618/	Patch Third Party Advisory
http://www.securityfocus.com/bid/102367	Third Party Advisory VDB Entry
https://access.redhat.com/errata/RHSA-2018:0676
https://access.redhat.com/errata/RHSA-2018:1062
https://access.redhat.com/errata/RHSA-2018:1130
https://access.redhat.com/errata/RHSA-2018:1170
https://access.redhat.com/errata/RHSA-2018:1319
https://access.redhat.com/errata/RHSA-2018:1737
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1739765	Issue Tracking Third Party Advisory
https://github.com/torvalds/linux/commit/2638fd0f92d4397884fd991d8f4925cb3f081901	Patch Third Party Advisory
https://lists.debian.org/debian-lts-announce/2018/05/msg00000.html
https://lkml.org/lkml/2017/4/2/13	Third Party Advisory
https://usn.ubuntu.com/3583-1/
https://usn.ubuntu.com/3583-2/
https://www.debian.org/security/2018/dsa-4187
https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.36	Release Notes Vendor Advisory

Technical Details

Vulnerability Type (View All)

Use After Free (CWE-416)

Vulnerable software and versions Switch to CPE 2.2

Denotes Vulnerable Software
Are we missing a CPE here? Please let us know.

Change History

9 change records found - show changes

Initial Analysis - 1/17/2018 10:05:59 AM

Action	Type	Old Value	New Value
Added	CPE Configuration		Record truncated, showing 500 of 3298 characters. View Entire Change Record OR cpe:2.3:o:linux:linux_kernel:4.9::::::: cpe:2.3:o:linux:linux_kernel:4.9.1::::::: cpe:2.3:o:linux:linux_kernel:4.9.2::::::: cpe:2.3:o:linux:linux_kernel:4.9.3::::::: cpe:2.3:o:linux:linux_kernel:4.9.4::::::: cpe:2.3:o:linux:linux_kernel:4.9.5::::::: cpe:2.3:o:linux:linux_kernel:4.9.6::::::: cpe:2.3:o:linux:linux_kernel:4.9.7::::::: cpe:2.3:o:linux:linux_kernel:4.9.8:::::::
Added	CVSS V2		(AV:N/AC:L/Au:N/C:C/I:C/A:C)
Added	CVSS V3		AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Added	CWE		CWE-416
Changed	Reference Type	http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=2638fd0f92d4397884fd991d8f4925cb3f081901 No Types Assigned	http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=2638fd0f92d4397884fd991d8f4925cb3f081901 Patch, Third Party Advisory
Changed	Reference Type	http://patchwork.ozlabs.org/patch/746618/ No Types Assigned	http://patchwork.ozlabs.org/patch/746618/ Patch, Third Party Advisory
Changed	Reference Type	http://www.securityfocus.com/bid/102367 No Types Assigned	http://www.securityfocus.com/bid/102367 Third Party Advisory, VDB Entry
Changed	Reference Type	https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1739765 No Types Assigned	https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1739765 Issue Tracking, Third Party Advisory
Changed	Reference Type	https://github.com/torvalds/linux/commit/2638fd0f92d4397884fd991d8f4925cb3f081901 No Types Assigned	https://github.com/torvalds/linux/commit/2638fd0f92d4397884fd991d8f4925cb3f081901 Patch, Third Party Advisory
Changed	Reference Type	https://lkml.org/lkml/2017/4/2/13 No Types Assigned	https://lkml.org/lkml/2017/4/2/13 Third Party Advisory
Changed	Reference Type	https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.36 No Types Assigned	https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.36 Release Notes, Vendor Advisory

Quick Info

CVE Dictionary Entry:
CVE-2017-18017
NVD Published Date:
01/03/2018
NVD Last Modified:
05/30/2018

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National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2017-18017 Detail

Current Description

Analysis Description

Impact

References to Advisories, Solutions, and Tools

Technical Details

Vulnerable software and versions Switch to CPE 2.2

Change History

CVE Modified by MITRE - 5/30/2018 9:29:00 PM

CVE Modified by MITRE - 5/9/2018 9:29:03 PM

CVE Modified by MITRE - 5/3/2018 9:29:05 PM

CVE Modified by MITRE - 5/2/2018 9:29:36 PM

CVE Modified by MITRE - 4/18/2018 9:29:04 PM

CVE Modified by MITRE - 4/11/2018 9:29:04 PM

CVE Modified by MITRE - 3/15/2018 9:29:08 PM

Initial Analysis - 1/17/2018 10:05:59 AM

CVE Modified by MITRE - 1/4/2018 9:31:29 PM

Quick Info