6.5

CVE-2018-6558: google fscrypt

CVSS: 6.5v3.0MediumModified
AliasesUBUNTU-CVE-2018-6558DEBIAN-CVE-2018-6558GHSA-qj26-7grj-whg3
Published 23-08-2018Last modified 17-09-2024
Open JSON

Vulnerability summary

CVE-2018-6558 is a medium (CVSS 6.5) vulnerability in google fscrypt. EPSS estimates a 0.62% chance of exploitation in the next 30 days, higher than 48.8% of scored vulnerabilities.

Overall risk
26/100
0100
Medium · default modelHow is this calculated?
CVSS score
6.5/10
010
Medium · v3.0 (NVD)
EPSS score
0.62%
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. 23-08-2018
    PublishedVulnerability first disclosed.
  2. 17-09-2024
    Last modifiedVulnerability information updated.

Description

The pam_fscrypt module in fscrypt before 0.2.4 may incorrectly restore primary and supplementary group IDs to the values associated with the root user, which allows attackers to gain privileges via a successful login through certain applications that use Linux-PAM (aka pam).

CVSS metrics

5 scores · 4 sources · 2 versions

EPSS trend

Probability

0.62%

Chance of exploitation in the next 30 days

Percentile

49%

Versus all other CVEs

30-day change

0.00 pp

From 0.62% on 18-09-2026

18-09-202618-10-2026
EPSS score
0.62%

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

No weakness data has been published for this record.

Affected systems

Debian1 product
  • fscrypt< 0.2.4-1
Github.com/google1 product
  • fscrypt< 0.2.4
Google1 product
The fscrypt project1 product
Ubuntu1 product
  • fscrypt< 0.2.2-0ubuntu2.1

5 vendors · 5 products

References

10 links