Vulnerability 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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | <= 4.15.7 |
Related Weaknesses (CWE)
References
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=4a491bPatchVendor Advisory
- http://www.securityfocus.com/bid/103348Third Party AdvisoryVDB Entry
- https://access.redhat.com/errata/RHSA-2018:2948
- https://access.redhat.com/errata/RHSA-2018:3083
- https://access.redhat.com/errata/RHSA-2018:3096
- https://github.com/torvalds/linux/commit/4a491b1ab11ca0556d2fda1ff1301e862a2d44cPatchThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2018/05/msg00000.html
- https://usn.ubuntu.com/3654-1/
- https://usn.ubuntu.com/3654-2/
- https://usn.ubuntu.com/3656-1/
- https://usn.ubuntu.com/3697-1/
- https://usn.ubuntu.com/3697-2/
- https://usn.ubuntu.com/3698-1/
- https://usn.ubuntu.com/3698-2/
- https://www.debian.org/security/2018/dsa-4187
FAQ
What is CVE-2018-7757?
CVE-2018-7757 is a vulnerability with a CVSS score of 5.5 (MEDIUM). 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 man...
How severe is CVE-2018-7757?
CVE-2018-7757 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2018-7757?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.