CVE-2018-12233

HighCVSS 7.8/10Last modified Jun 17, 2026

Description

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.

Metrics

CVSS 3.1 7.8/10CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-119

Affected software

No affected versions have been published.

Timeline

Published: Jun 12, 2018
Last modified: Jun 17, 2026
NVD status: Modified

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