NULL pointer dereference in Linux Kernel
CVE-2018-19407
The vcpu_scan_ioapic function in arch/x86/kvm/x86.c in the Linux kernel through 4.19.2 allows local users to cause a denial of service (NULL pointer dereference and BUG) via crafted system calls that reach a situation where ioapic is uninitialized.
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 (38.9th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 39th percentile — 38.9% 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
- Linux Kernel
- Canonical Ubuntu Linux — versions 14.04, 16.04, 18.04
Weakness classification (CWE)
References
- usn.ubuntu.com/3879-2/ (vendor-advisory, Third Party Advisory)
- usn.ubuntu.com/3872-1/ (vendor-advisory, Third Party Advisory)
- usn.ubuntu.com/3878-1/ (vendor-advisory, Third Party Advisory)
- usn.ubuntu.com/3879-1/ (vendor-advisory, Third Party Advisory)
- usn.ubuntu.com/3871-5/ (vendor-advisory, Third Party Advisory)
- usn.ubuntu.com/3878-2/ (vendor-advisory, Third Party Advisory)
- usn.ubuntu.com/3871-4/ (vendor-advisory, Third Party Advisory)
- www.securityfocus.com/bid/105987 (VDB Entry, Third Party Advisory, vdb-entry)
- usn.ubuntu.com/3871-1/ (vendor-advisory, Third Party Advisory)
- usn.ubuntu.com/3871-3/ (vendor-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2018-19407?
- CVE-2018-19407 is a medium-severity vulnerability in Linux Kernel, classified under NULL Pointer Dereference. CVSS score: 5.5/10. Published 2018-11-21.
- How severe is CVE-2018-19407?
- Medium severity. CVSS v3 base score is 5.5 out of 10.