What is CVE-2018-1092?

CVE-2018-1092 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, classified as a NULL Pointer Dereference flaw (CWE-476). CVE-2018-1092 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2018-1092?

CVE-2018-1092 has a CVSS score of 5.5 out of 10, rated Medium severity. The vector string is CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.

Is there a patch available for CVE-2018-1092?

Monitor the NIST NVD and your Linux distribution's security advisories for CVE-2018-1092 patch availability.

Is CVE-2018-1092 actively exploited?

CVE-2018-1092 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-2018-1092

Medium

The ext4_iget function in fs/ext4/inode.c in the Linux kernel through 4.15.15 mishandles the case of a root directory with a zero i_links_count, which allows attackers to cause a denial of service (ext4_process_freed_data NULL pointer dereference and OOPS) via a crafted ext4 image.

Package Linux Kernel

Published 2018-04-02

Last modified 2024-11-21

CVSS version 3.0

Patch available

Awaiting data

CVSS 3.0 score

5.5

out of 10

Medium

Attack Vector

Local

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

High

Vector string

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

Weakness type

CWE-476

CVE-2018-1092 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

20 total

Kernel Git
https://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4.git/commit/?id=8e4b5eae5decd9dfe5a4ee369c22028f90ab4c44

Patch
Openwall
http://openwall.com/lists/oss-security/2018/03/29/1

Mailing List Third Party Advisory
Red Hat
https://access.redhat.com/errata/RHSA-2018:2948
Red Hat
https://access.redhat.com/errata/RHSA-2018:3083
Red Hat
https://access.redhat.com/errata/RHSA-2018:3096

Showing 5 of 20 references View all on NVD

Details

CVE ID CVE-2018-1092

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.0

Published 2018-04-02

Modified 2024-11-21

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2018-1092?

CVE-2018-1092 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 , classified as a NULL Pointer Dereference flaw (CWE-476) . CVE-2018-1092 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2018-1092?

CVE-2018-1092 has a CVSS score of 5.5 out of 10, rated Medium severity (CVSS 3.0). The vector string is CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.
Is there a patch available for CVE-2018-1092?

Monitor the NIST NVD and your Linux distribution's security advisories for CVE-2018-1092 patch availability.
Is CVE-2018-1092 actively exploited?

No. CVE-2018-1092 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.