The xfs_bmap_extents_to_btree function in fs/xfs/libxfs/xfs_bmap.c in the Linux kernel can cause a NULL pointer dereference in xfs_bmapi_write function. An attacker could trick a legitimate user or a privileged attacker could exploit this by mounting a crafted xfs filesystem image to cause a kernel panic and thus a denial of service.
Platform | Package | Release Date | Advisory |
---|---|---|---|
Amazon Linux 2 - Core | kernel | 2020-08-18 20:29 | ALAS2-2020-1480 |
Score Type | Score | Vector | |
---|---|---|---|
Amazon Linux | CVSSv3 | 4.6 | CVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
NVD | CVSSv2 | 4.9 | AV:L/AC:L/Au:N/C:N/I:N/A:C |
NVD | CVSSv3 | 5.5 | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |