Slab-out-of-bounds Read Access Vulnerability in f2fs_build_segment_manager

Slab-out-of-bounds Read Access Vulnerability in f2fs_build_segment_manager

CVE-2019-19449 · HIGH Severity

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

In the Linux kernel 5.0.21, mounting a crafted f2fs filesystem image can lead to slab-out-of-bounds read access in f2fs_build_segment_manager in fs/f2fs/segment.c, related to init_min_max_mtime in fs/f2fs/segment.c (because the second argument to get_seg_entry is not validated).

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