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.
SeverityMedium
CVSS5.5
Exploit probability—
Product
Linux Kernel
PublishedMar 8, 2018
First seenMar 8, 2018
How to fix
Vendor advisories
- access.redhat.com/errata/RHSA-2018:3083
- debian.org/security/2018/dsa-4187
- usn.ubuntu.com/3654-1/
- usn.ubuntu.com/3697-1/
- debian.org/security/2018/dsa-4188
- access.redhat.com/errata/RHSA-2018:2948
- usn.ubuntu.com/3697-2/
- usn.ubuntu.com/3654-2/
- usn.ubuntu.com/3698-1/
- usn.ubuntu.com/3656-1/
- access.redhat.com/errata/RHSA-2018:3096
- usn.ubuntu.com/3698-2/
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | v ≤ 4.15.7 | — |
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