5.5

CVE-2018-19406: linux linux_kernel NULL Pointer Dereference

CVSS: 5.5v3.0MediumModified
AliasesUBUNTU-CVE-2018-19406
Published 21-11-2018Last modified 05-08-2024
Open JSON

Vulnerability summary

CVE-2018-19406 is a medium (CVSS 5.5) NULL Pointer Dereference vulnerability in linux linux_kernel. EPSS estimates a 0.36% chance of exploitation in the next 30 days, higher than 27.7% of scored vulnerabilities.

Overall risk
22/100
0100
Low · default modelHow is this calculated?
CVSS score
5.5/10
010
Medium · v3.0 (NVD)
EPSS score
0.36%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 21-11-2018
    PublishedVulnerability first disclosed.
  2. 05-08-2024
    Last modifiedVulnerability information updated.

Description

kvm_pv_send_ipi in arch/x86/kvm/lapic.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 the apic map is uninitialized.

CVSS metrics

3 scores · 2 sources · 2 versions

EPSS trend

Probability

0.36%

Chance of exploitation in the next 30 days

Percentile

28%

Versus all other CVEs

30-day change

0.00 pp

From 0.36% on 18-09-2026

18-09-202618-10-2026
EPSS score
0.36%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Ubuntu10 products
  • linux< 3.11.0-12.19 | < 4.2.0-16.19 | < 4.13.0-16.19
  • linux-aws< 4.4.0-1002.2 | < 4.4.0-1001.10 | < 4.15.0-1001.1
  • linux-azure< 4.15.0-1023.24~14.04.1 | < 4.11.0-1009.9 | < 4.15.0-1002.2
  • linux-gcp< 4.10.0-1004.4 | < 4.15.0-1001.1
  • linux-hwe< 4.8.0-36.36~16.04.1
Linux1 product

2 vendors · 11 products

References

5 links