9.8

CVE-2018-5128: canonical ubuntu_linux Use After Free

CVSS: 9.8v3.0CriticalModified
AliasesUBUNTU-CVE-2018-5128
Published 11-06-2018Last modified 05-08-2024
Open JSON

Vulnerability summary

CVE-2018-5128 is a critical (CVSS 9.8) Use After Free vulnerability in canonical ubuntu_linux. EPSS estimates a 1.78% chance of exploitation in the next 30 days, higher than 77.8% of scored vulnerabilities.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
9.8/10
010
Critical · v3.0 (NVD)
EPSS score
1.78%
0%100%
Low · -0.04 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 3 · Related 3
OPENSUSE-SU-2024:10600-1OPENSUSE-SU-2024:14572-1USN-3596-1

Timeline

  1. 11-06-2018
    PublishedVulnerability first disclosed.
  2. 05-08-2024
    Last modifiedVulnerability information updated.

Description

A use-after-free vulnerability can occur when manipulating elements, events, and selection ranges during editor operations. This results in a potentially exploitable crash. This vulnerability affects Firefox < 59.

CVSS metrics

3 scores · 2 sources · 2 versions

EPSS trend

Probability

1.78%

Chance of exploitation in the next 30 days

Percentile

78%

Versus all other CVEs

30-day change

-0.04 pp

From 1.82% on 18-09-2026

18-09-202618-10-2026
EPSS score
1.78%

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

Canonical1 product
Mozilla1 product
  • firefox≥ unspecified, < 59 | < 59.0
Ubuntu1 product
  • firefox< 59.0+build5-0ubuntu0.14.04.1 | < 59.0+build5-0ubuntu0.16.04.1 | < 59.0.1+build1-0ubuntu1

3 vendors · 3 products

References

9 links