CVE-2017-18216 : In fs/ocfs2/cluster/nodemanager.c in the Linux kernel before 4.15, local users c

In fs/ocfs2/cluster/nodemanager.c in the Linux kernel before 4.15, local users can cause a denial of service (NULL pointer dereference and BUG) because a required mutex is not used.

Published 2018-03-05 18:29:00

Updated 2018-10-30 10:29:06

Source MITRE

View at NVD, CVE.org

Vulnerability category: Memory CorruptionDenial of service

Products affected by CVE-2017-18216

Linux » Linux Kernel
Versions before (<) 4.15
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Matching versions

Exploit prediction scoring system (EPSS) score for CVE-2017-18216

EPSS FAQ

0.04%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 6 %

Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2017-18216

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
2.1	LOW	AV:L/AC:L/Au:N/C:N/I:N/A:P	3.9	2.9	NIST
Access Vector: Local Access Complexity: Low Authentication: None Confidentiality Impact: None Integrity Impact: None Availability Impact: Partial
5.5	MEDIUM	CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H	1.8	3.6	NIST
Attack Vector: Local Attack Complexity: Low Privileges Required: Low User Interaction: None Scope: Unchanged Confidentiality: None Integrity: None Availability: High

CWE ids for CVE-2017-18216

CWE-476 NULL Pointer Dereference

The product dereferences a pointer that it expects to be valid but is NULL.

Assigned by: nvd@nist.gov (Primary)

References for CVE-2017-18216

http://www.securityfocus.com/bid/103278

Linux Kernel 'fs/ocfs2/cluster/nodemanager.c' Local Denial of Service Vulnerability
Third Party Advisory;VDB Entry
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=853bc26a7ea39e354b9f8889ae7ad1492ffa28d2

kernel/git/torvalds/linux.git - Linux kernel source tree
Patch;Vendor Advisory
https://www.debian.org/security/2018/dsa-4188

Debian -- Security Information -- DSA-4188-1 linux

CVEs referencing this url
https://usn.ubuntu.com/3798-2/

USN-3798-2: Linux kernel (Trusty HWE) vulnerabilities | Ubuntu security notices

CVEs referencing this url
https://usn.ubuntu.com/3776-1/

USN-3776-1: Linux kernel vulnerabilities | Ubuntu security notices

CVEs referencing this url
https://usn.ubuntu.com/3776-2/

USN-3776-2: Linux kernel (Xenial HWE) vulnerabilities | Ubuntu security notices

CVEs referencing this url
https://usn.ubuntu.com/3798-1/

USN-3798-1: Linux kernel vulnerabilities | Ubuntu security notices

CVEs referencing this url
https://www.debian.org/security/2018/dsa-4187

Debian -- Security Information -- DSA-4187-1 linux

CVEs referencing this url
https://github.com/torvalds/linux/commit/853bc26a7ea39e354b9f8889ae7ad1492ffa28d2

ocfs2: subsystem.su_mutex is required while accessing the item->ci_pa… · torvalds/linux@853bc26 · GitHub
Patch;Third Party Advisory
https://lists.debian.org/debian-lts-announce/2018/05/msg00000.html

[SECURITY] [DLA 1369-1] linux security update

CVEs referencing this url

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Vulnerability Details : CVE-2017-18216

Products affected by CVE-2017-18216

Exploit prediction scoring system (EPSS) score for CVE-2017-18216

CVSS scores for CVE-2017-18216

CWE ids for CVE-2017-18216

References for CVE-2017-18216