CWE Code: 119
Vulnerability Type: privilege_escalation
CVSS Score: 6.8
CWE Name:  Improper Restriction of Operations within the Bounds of a Memory Buffer
Summary: 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.
Access Authentication: NONE
Access Complexity: MEDIUM
Access Vector: NETWORK
Impact (C/I/A): PARTIAL/PARTIAL/PARTIAL
Published Date: 2018-06-12
Last Modified Date: 2019-03-27