What is CVE-2018-13093?

CVE-2018-13093 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-2018-13093 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2018-13093?

CVE-2018-13093 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-2018-13093?

No patch is currently available for CVE-2018-13093. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

Is CVE-2018-13093 actively exploited?

CVE-2018-13093 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-2018-13093

Medium

An issue was discovered in fs/xfs/xfs_icache.c in the Linux kernel through 4.17.3. There is a NULL pointer dereference and panic in lookup_slow() on a NULL inode->i_ops pointer when doing pathwalks on a corrupted xfs image. This occurs because of a lack of proper validation that cached inodes are free during allocation.

Package Linux Kernel

Published 2018-07-03

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-2018-13093 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-2018-13093 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Red Hat
https://access.redhat.com/errata/RHSA-2019:2029
Red Hat
https://access.redhat.com/errata/RHSA-2019:2043
Kernel.org
https://bugzilla.kernel.org/show_bug.cgi?id=199367

Issue Tracking Third Party Advisory
Debian Security
https://lists.debian.org/debian-lts-announce/2020/03/msg00001.html
Ubuntu Security
https://usn.ubuntu.com/4094-1/
Ubuntu Security
https://usn.ubuntu.com/4118-1/
Kernel patch commit
https://git.kernel.org/pub/scm/fs/xfs/xfs-linux.git/commit/?h=for-next&id=afca6c5b2595fc44383919fba740c194b0b76aff
Patch
Kernel patch commit
https://github.com/torvalds/linux/commit/afca6c5b2595fc44383919fba740c194b0b76aff
Patch

Details

CVE ID CVE-2018-13093

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.0

Published 2018-07-03

Modified 2024-11-21

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2018-13093?

CVE-2018-13093 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-2018-13093 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2018-13093?

CVE-2018-13093 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-2018-13093?

No patch is currently available for CVE-2018-13093. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
Is CVE-2018-13093 actively exploited?

No — CVE-2018-13093 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 →