NULL pointer dereference in Linux Kernel
CVE-2018-8043
The unimac_mdio_probe function in drivers/net/phy/mdio-bcm-unimac.c in the Linux kernel through 4.15.8 does not validate certain resource availability, which allows local users to cause a denial of service (NULL pointer dereference).
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: 0.004 (30.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 31st percentile — 30.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000
Affected products
- Linux Kernel
- Canonical Ubuntu Linux — versions 14.04, 16.04, 17.10
Weakness classification (CWE)
References
- usn.ubuntu.com/3619-2/ (vendor-advisory, Third Party Advisory)
- usn.ubuntu.com/3630-2/ (vendor-advisory, Third Party Advisory)
- usn.ubuntu.com/3632-1/ (vendor-advisory, Third Party Advisory)
- git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/ (Patch, Vendor Advisory)
- github.com/torvalds/linux/commit/297a6961ffb8ff4dc66c9fbf53b924bd1dda05d5 (Patch, Third Party Advisory)
- usn.ubuntu.com/3630-1/ (vendor-advisory, Third Party Advisory)
- usn.ubuntu.com/3619-1/ (vendor-advisory, Third Party Advisory)
- www.securitytracker.com/id/1040749 (VDB Entry, Third Party Advisory, vdb-entry)
Frequently asked questions
- What is CVE-2018-8043?
- CVE-2018-8043 is a medium-severity vulnerability in Linux Kernel, classified under NULL Pointer Dereference. CVSS score: 5.5/10. Published 2018-03-10.
- How severe is CVE-2018-8043?
- Medium severity. CVSS v3 base score is 5.5 out of 10.