Detections
Analytics
CVE-2018-7757
medium
Description
Memory leak in the sas_smp_get_phy_events function in drivers/scsi/libsas/sas_expander.c in the Linux kernel through 4.15.7 allows local users to cause a denial of service (memory consumption) via many read accesses to files in the /sys/class/sas_phy directory, as demonstrated by the /sys/class/sas_phy/phy-1:0:12/invalid_dword_count file.
References
https://www.debian.org/security/2018/dsa-4188
https://www.debian.org/security/2018/dsa-4187
https://usn.ubuntu.com/3698-2/
https://usn.ubuntu.com/3698-1/
https://usn.ubuntu.com/3697-2/
https://usn.ubuntu.com/3697-1/
https://usn.ubuntu.com/3656-1/
https://usn.ubuntu.com/3654-2/
https://usn.ubuntu.com/3654-1/
https://lists.debian.org/debian-lts-announce/2018/05/msg00000.html
https://github.com/torvalds/linux/commit/4a491b1ab11ca0556d2fda1ff1301e862a2d44c4
https://access.redhat.com/errata/RHSA-2018:3096
https://access.redhat.com/errata/RHSA-2018:3083
https://access.redhat.com/errata/RHSA-2018:2948