In the Linux kernel before 5.2, a setxattr operation, after a mount of a crafted ext4 image, can cause a slab-out-of-bounds write access because of an ext4_xattr_set_entry use-after-free in fs/ext4/xattr.c when a large old_size value is used in a memset call, aka CID-345c0dbf3a30.
4.4.0-184.2144.4.0-1109.1204.15.0-1052.54~16.04.14.15.0-1061.664.15.0-1047.504.15.0-66.75~16.04.14.10.0-14.16~16.04.14.10.0-19.21~16.04.14.10.0-20.22~16.04.14.10.0-21.23~16.04.14.10.0-22.24~16.04.14.10.0-24.28~16.04.14.10.0-26.30~16.04.14.11.0-13.19~16.04.14.11.0-14.20~16.04.14.13.0-16.19~16.04.3+13 more4.4.0-1075.824.15.0-1027.30~16.04.14.4.0-1134.143Exploitability
AV:LAC:LPR:HUI:RScope
S:UImpact
C:HI:HA:HCVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H