5.5

CVE-2018-20509: linux linux_kernel

CVSS: 5.5v3.0MediumModified
AliasesUBUNTU-CVE-2018-20509DEBIAN-CVE-2018-20509
Published 30-04-2019Last modified 05-08-2024
Open JSON

Vulnerability summary

CVE-2018-20509 is a medium (CVSS 5.5) vulnerability in linux linux_kernel. EPSS estimates a 0.37% chance of exploitation in the next 30 days, higher than 29.1% 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
0.37%
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. 30-04-2019
    PublishedVulnerability first disclosed.
  2. 05-08-2024
    Last modifiedVulnerability information updated.

Description

The print_binder_ref_olocked function in drivers/android/binder.c in the Linux kernel 4.14.90 allows local users to obtain sensitive address information by reading " ref *desc *node" lines in a debugfs file.

CVSS metrics

4 scores · 3 sources · 2 versions

EPSS trend

Probability

0.37%

Chance of exploitation in the next 30 days

Percentile

29%

Versus all other CVEs

30-day change

0.00 pp

From 0.37% on 18-09-2026

18-09-202618-10-2026
EPSS score
0.37%

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

Ubuntu7 products
  • linuxAll versions (No fix recorded)
  • linux-awsAll versions (No fix recorded)
  • linux-azureAll versions (No fix recorded) | < 4.15.0-1013.13~16.04.2
  • linux-gcp< 4.15.0-1014.14~16.04.1
  • linux-hwe< 4.15.0-24.26~16.04.1
Debian1 product
  • linux< 4.14.2-1
Linux1 product

3 vendors · 9 products

References

7 links