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prionPRIOn knowledge basePRION:CVE-2018-12233
HistoryJun 12, 2018 - 12:29 p.m.

Design/Logic Flaw

2018-06-1212:29:00
PRIOn knowledge base
www.prio-n.com
16

AI Score

7.3

Confidence

High

EPSS

0.005

Percentile

75.4%

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.