Vulnerability in Linux Kernel
CVE-2018-7757
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.005 (42.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 43rd percentile — 42.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000
Affected products
Weakness classification (CWE)
References
- access.redhat.com/errata/RHSA-2018:3083 (vendor-advisory)
- www.debian.org/security/2018/dsa-4187 (vendor-advisory)
- usn.ubuntu.com/3654-1/ (vendor-advisory)
- github.com/torvalds/linux/commit/4a491b1ab11ca0556d2fda1ff1301e862a2d44c4 (Patch, Third Party Advisory)
- usn.ubuntu.com/3697-1/ (vendor-advisory)
- www.debian.org/security/2018/dsa-4188 (vendor-advisory)
- access.redhat.com/errata/RHSA-2018:2948 (vendor-advisory)
- usn.ubuntu.com/3697-2/ (vendor-advisory)
- www.securityfocus.com/bid/103348 (VDB Entry, Third Party Advisory, vdb-entry)
- usn.ubuntu.com/3654-2/ (vendor-advisory)
Frequently asked questions
- What is CVE-2018-7757?
- CVE-2018-7757 is a medium-severity vulnerability in Linux Kernel, classified under Missing Release of Resource after Effective Lifetime. CVSS score: 5.5/10. Published 2018-03-08.
- How severe is CVE-2018-7757?
- Medium severity. CVSS v3 base score is 5.5 out of 10.