CVE-2018-12233

2018-06-12T12:29:00
ID CVE-2018-12233
Type cve
Reporter cve@mitre.org
Modified 2019-03-27T16:11:00

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.