CVE-2018-12233

High

In the ea_get function in fs/jfs/xattr.c in the Linux kernel through 4.17.1, a memory corruption bug in JFS can be triggered by calling setxattr twice with two different extended attribute names on the same file. This vulnerability can be triggered by an unprivileged user with the ability to create files and execute programs. A kmalloc call is incorrect, leading to slab-out-of-bounds in jfs_xattr.

Package Linux Kernel
Published 2018-06-12
Last modified 2024-11-21
CVSS version 3.1
Patch available
Awaiting data

CVSS 3.1 score

7.8

out of 10
High
Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Vector string
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Weakness type

CWE-119

CVE-2018-12233 is a Buffer Overflow vulnerability

What is Buffer Overflow?

The product performs operations on a memory buffer but reads or writes outside its intended boundaries. Learn more on MITRE CWE

References

12 total
Showing 5 of 12 references View all on NVD

Frequently asked questions

  • What is CVE-2018-12233?

    CVE-2018-12233 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10 , classified as a Buffer Overflow flaw (CWE-119) . CVE-2018-12233 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

  • What is the CVSS score for CVE-2018-12233?

    CVE-2018-12233 has a CVSS score of 7.8 out of 10, rated High severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H .

  • Is there a patch available for CVE-2018-12233?

    Monitor the NIST NVD and your Linux distribution's security advisories for CVE-2018-12233 patch availability.

  • Is CVE-2018-12233 actively exploited?

    No. CVE-2018-12233 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

Back to
All CVEs
View on
NVD / NIST