CVE-2018-1066

Name: CVE-2018-1066
Creator: NVD / NIST
Published: 2018-03-02T08:29:00.337+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 3.63%

Last modified Jun 17, 2026

CVE-2018-1066 is a vulnerability of currently unknown severity. The Linux kernel before version 4.11 is vulnerable to a NULL pointer dereference in fs/cifs/cifsencrypt.c:setup_ntlmv2_rsp() that allows an attacker controlling a CIFS server to kernel panic a client that has this server mounted, because an empty TargetInfo field in an NTLMSSP setup negotiation response is mishandled during session recovery.. EPSS estimates a 3.63% chance of exploitation in the next 30 days.

Description

The Linux kernel before version 4.11 is vulnerable to a NULL pointer dereference in fs/cifs/cifsencrypt.c:setup_ntlmv2_rsp() that allows an attacker controlling a CIFS server to kernel panic a client that has this server mounted, because an empty TargetInfo field in an NTLMSSP setup negotiation response is mishandled during session recovery.

Metrics

EPSS Probability

3.63%

88.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-476

Affected Software

Vendor	Product	Versions
Linux	Linux Kernel	<= 4.10.15
Debian	Debian Linux	8.0
Debian	Debian Linux	9.0
Canonical	Ubuntu Linux	12.04
Canonical	Ubuntu Linux	14.04

References

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=cabfb3680f78981d26c078a26e5c748531257ebbPatch, Vendor Advisory
http://www.securityfocus.com/bid/103378Third Party Advisory, VDB Entry
https://bugzilla.redhat.com/show_bug.cgi?id=1539599Issue Tracking, Third Party Advisory
https://github.com/torvalds/linux/commit/cabfb3680f78981d26c078a26e5c748531257ebbPatch, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2018/07/msg00015.htmlMailing List, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2018/07/msg00016.htmlMailing List, Third Party Advisory
https://patchwork.kernel.org/patch/10187633/Patch, Third Party Advisory
https://usn.ubuntu.com/3880-1/Third Party Advisory
https://usn.ubuntu.com/3880-2/Third Party Advisory
https://www.debian.org/security/2018/dsa-4187Third Party Advisory
https://www.debian.org/security/2018/dsa-4188Third Party Advisory
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=cabfb3680f78981d26c078a26e5c748531257ebbPatch, Vendor Advisory
http://www.securityfocus.com/bid/103378Third Party Advisory, VDB Entry
https://bugzilla.redhat.com/show_bug.cgi?id=1539599Issue Tracking, Third Party Advisory
https://github.com/torvalds/linux/commit/cabfb3680f78981d26c078a26e5c748531257ebbPatch, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2018/07/msg00015.htmlMailing List, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2018/07/msg00016.htmlMailing List, Third Party Advisory
https://patchwork.kernel.org/patch/10187633/Patch, Third Party Advisory
https://usn.ubuntu.com/3880-1/Third Party Advisory
https://usn.ubuntu.com/3880-2/Third Party Advisory
https://www.debian.org/security/2018/dsa-4187Third Party Advisory
https://www.debian.org/security/2018/dsa-4188Third Party Advisory

Timeline

Published: Mar 2, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-1066?

How severe is CVE-2018-1066?

Severity scoring for CVE-2018-1066 is pending analysis. The EPSS model estimates a 3.63% probability of exploitation in the next 30 days.

How do I fix CVE-2018-1066?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2018-1066?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST