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Vulnerability Intelligence

Vulnerability IntelligenceCVE-2017-18017

CVE-2017-18017

CRITICAL9.8

The tcpmss_mangle_packet function in net/netfilter/xt_TCPMSS

Published Jan 3, 2018

Modified 1 years ago

Details

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.

References(34)

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=2638fd0f92d4397884fd991d8f4925cb3f081901

http://lists.opensuse.org/opensuse-security-announce/2018-02/msg00008.html

http://lists.opensuse.org/opensuse-security-announce/2018-02/msg00013.html

http://lists.opensuse.org/opensuse-security-announce/2018-02/msg00015.html

http://lists.opensuse.org/opensuse-security-announce/2018-02/msg00038.html

http://lists.opensuse.org/opensuse-security-announce/2018-02/msg00047.html

http://lists.opensuse.org/opensuse-security-announce/2018-03/msg00030.html

http://lists.opensuse.org/opensuse-security-announce/2018-03/msg00067.html

http://lists.opensuse.org/opensuse-security-announce/2018-03/msg00070.html

http://lists.opensuse.org/opensuse-security-announce/2018-03/msg00072.html

http://lists.opensuse.org/opensuse-security-announce/2018-04/msg00014.html

http://patchwork.ozlabs.org/patch/746618/

http://www.securityfocus.com/bid/102367

http://www.ubuntu.com/usn/USN-3583-1

http://www.ubuntu.com/usn/USN-3583-2

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

https://github.com/torvalds/linux/commit/2638fd0f92d4397884fd991d8f4925cb3f081901

https://help.ecostruxureit.com/display/public/UADCE725/Security+fixes+in+StruxureWare+Data+Center+Expert+v7.6.0

https://lists.debian.org/debian-lts-announce/2018/05/msg00000.html

CVSS Analysis

CVSS v3.1

9.8

Exploitability

Attack Vector

NetworkAV:N

Attack Complexity

LowAC:L

Privileges Required

NonePR:N

User Interaction

NoneUI:N

Scope

Scope

UnchangedS:U

Impact

Confidentiality

HighC:H

Integrity

HighI:H

Availability

HighA:H

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

Ecosystems

Timeline

PublishedJan 3, 2018

ModifiedJan 3, 2025

CVE-2017-18017 | Mondoo Vulnerability Intelligence