Denial of Service Vulnerability in Linux Kernel Ext4 Filesystem by The Linux Foundation
CVE-2018-1092

5.5MEDIUM

Key Information:

Vendor

Linux
Status
Linux Kernel Through Version 4.15
Vendor
CVE Published:
2 April 2018

What is CVE-2018-1092?

The ext4_iget function within the Linux kernel mishandles scenarios involving a root directory with a zero i_links_count. This mismanagement could permit adversaries to trigger a denial of service through a specially crafted ext4 image, resulting in a NULL pointer dereference and OOPS. This flaw highlights critical considerations for system integrity and operational uptime.

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Affected Version(s)

Linux kernel through version 4.15 Linux kernel through version 4.15

References

https://usn.ubuntu.com/3676-1/
vendor-advisoryx_refsource_UBUNTU
https://usn.ubuntu.com/3678-2/
vendor-advisoryx_refsource_UBUNTU
https://access.redhat.com/errata/RHSA-2018:3083
vendor-advisoryx_refsource_REDHAT

CVSS V3.1

Score:
5.5
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

JSON
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