Description

The sg_ioctl function in drivers/scsi/sg.c in the Linux kernel through 4.10.4 allows local users to cause a denial of service (stack-based buffer overflow) or possibly have unspecified other impact via a large command size in an SG_NEXT_CMD_LEN ioctl call, leading to out-of-bounds write access in the sg_write function.

References

http://www.securityfocus.com/bid/96989

http://www.securitytracker.com/id/1038086

https://access.redhat.com/errata/RHSA-2017:1842

https://access.redhat.com/errata/RHSA-2017:2077

https://access.redhat.com/errata/RHSA-2017:2669

https://gist.github.com/dvyukov/48ad14e84de45b0be92b7f0eda20ff1b

https://git.kernel.org/pub/scm/linux/kernel/git/mkp/scsi.git/commit/?h=4.11/scsi-fixes&id=bf33f87dd04c371ea33feb821b60d63d754e3124

https://source.android.com/security/bulletin/pixel/2017-10-01

Details

Risk Information

CVSS v2

CVSS v3