What is CVE-2018-1066?

CVE-2018-1066 is a Medium severity Linux kernel vulnerability with a CVSS score of 6.5 out of 10, classified as a NULL Pointer Dereference flaw (CWE-476). CVE-2018-1066 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2018-1066?

CVE-2018-1066 has a CVSS score of 6.5 out of 10, rated Medium severity. The vector string is CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.

Is there a patch available for CVE-2018-1066?

No patch is currently available for CVE-2018-1066. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

Is CVE-2018-1066 actively exploited?

CVE-2018-1066 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is NULL Pointer Dereference (CWE-476)?

The product dereferences a pointer that it expects to be valid but is NULL, typically causing a crash. See MITRE CWE for full details: https://cwe.mitre.org/data/definitions/476.html

CVE-2018-1066

Medium

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.

Package Linux Kernel

Published 2018-03-02

Last modified 2024-11-21

CVSS version 3.0

Patch available

Awaiting data

CVSS 3.0 score

6.5

out of 10

Medium

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

High

Vector string

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Weakness type

CWE-476

CVE-2018-1066 is a NULL Pointer Dereference vulnerability

What is NULL Pointer Dereference?

The product dereferences a pointer that it expects to be valid but is NULL, typically causing a crash. Learn more on MITRE CWE

References

The following references provide additional information about CVE-2018-1066 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Securityfocus
http://www.securityfocus.com/bid/103378

Third Party Advisory VDB Entry
Red Hat
https://bugzilla.redhat.com/show_bug.cgi?id=1539599

Issue Tracking Third Party Advisory
Debian Security
https://lists.debian.org/debian-lts-announce/2018/07/msg00015.html

Mailing List Third Party Advisory
Debian Security
https://lists.debian.org/debian-lts-announce/2018/07/msg00016.html

Mailing List Third Party Advisory
Ubuntu Security
https://usn.ubuntu.com/3880-1/

Third Party Advisory
Ubuntu Security
https://usn.ubuntu.com/3880-2/

Third Party Advisory
Debian Security
https://www.debian.org/security/2018/dsa-4187

Third Party Advisory
Debian Security
https://www.debian.org/security/2018/dsa-4188

Third Party Advisory
Kernel patch commit
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=cabfb3680f78981d26c078a26e5c748531257ebb
Patch
Kernel patch commit
https://github.com/torvalds/linux/commit/cabfb3680f78981d26c078a26e5c748531257ebb
Patch
Kernel patch commit
https://patchwork.kernel.org/patch/10187633/
Patch

Details

CVE ID CVE-2018-1066

Severity Medium

CVSS score 6.5 / 10

CVSS version 3.0

Published 2018-03-02

Modified 2024-11-21

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2018-1066?

CVE-2018-1066 is a Medium severity Linux kernel vulnerability with a CVSS score of 6.5 out of 10 , classified as a NULL Pointer Dereference flaw (CWE-476) . CVE-2018-1066 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2018-1066?

CVE-2018-1066 has a CVSS score of 6.5 out of 10, rated Medium severity (CVSS 3.0). The vector string is CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.
Is there a patch available for CVE-2018-1066?

No patch is currently available for CVE-2018-1066. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
Is CVE-2018-1066 actively exploited?

No — CVE-2018-1066 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.
What is NULL Pointer Dereference (CWE-476)?

The product dereferences a pointer that it expects to be valid but is NULL, typically causing a crash. View CWE-476 on MITRE CWE →