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. 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?

No patch is currently available for CVE-2018-12233. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

Is CVE-2018-12233 actively exploited?

CVE-2018-12233 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is Buffer Overflow (CWE-119)?

The product performs operations on a memory buffer but reads or writes outside its intended boundaries. See MITRE CWE for full details: https://cwe.mitre.org/data/definitions/119.html

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

The following references provide additional information about CVE-2018-12233 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Securityfocus
http://www.securityfocus.com/bid/104452

Third Party Advisory VDB Entry
Debian Security
https://lists.debian.org/debian-lts-announce/2018/07/msg00015.html

Third Party Advisory VDB Entry
Debian Security
https://lists.debian.org/debian-lts-announce/2018/07/msg00016.html

Third Party Advisory VDB Entry
Debian Security
https://lists.debian.org/debian-lts-announce/2018/07/msg00020.html

Third Party Advisory VDB Entry
Lkml
https://lkml.org/lkml/2018/6/2/2

Third Party Advisory VDB Entry
Marc
https://marc.info/?l=linux-kernel&m=152814391530549&w=2

Third Party Advisory
Ubuntu Security
https://usn.ubuntu.com/3752-1/

Third Party Advisory VDB Entry
Ubuntu Security
https://usn.ubuntu.com/3752-2/

Third Party Advisory VDB Entry
Ubuntu Security
https://usn.ubuntu.com/3752-3/

Third Party Advisory VDB Entry
Ubuntu Security
https://usn.ubuntu.com/3753-1/

Third Party Advisory VDB Entry
Ubuntu Security
https://usn.ubuntu.com/3753-2/

Third Party Advisory VDB Entry
Ubuntu Security
https://usn.ubuntu.com/3754-1/

Third Party Advisory VDB Entry

Details

CVE ID CVE-2018-12233

Severity High

CVSS score 7.8 / 10

CVSS version 3.1

Published 2018-06-12

Modified 2024-11-21

KEV No

Patch Awaiting data

Package linux

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?

No patch is currently available for CVE-2018-12233. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
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.
What is Buffer Overflow (CWE-119)?

The product performs operations on a memory buffer but reads or writes outside its intended boundaries. View CWE-119 on MITRE CWE →