THREATPORT/VULNERABILITY/CVE-2018-5156
CRITICAL SEVERITY

CVE-2018-5156

Enterprise Linux Desktop vulnerability

CVSS
9.8
EPSS
3.8%
EPSS pct
89th
Exploited
No known
A vulnerability can occur when capturing a media stream when the media source type is changed as the capture is occurring. This can result in stream data being cast to the wrong type causing a potentially exploitable crash. This vulnerability affects Thunderbird < 60, Firefox ESR < 60.1, Firefox ESR < 52.9, and Firefox < 61.
Affected vendor
Redhat
Affected product
Enterprise Linux Desktop
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness type (CWE)
  • CWE-20 — Improper Input Validation
Published
2018-10-18

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring no privileges, no user interaction. Successful exploitation leads to high impact to confidentiality, high impact to integrity, high impact to availability.

Its EPSS score of 3.8% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 89% of all scored CVEs.

Check your external exposure to CVE-2018-5156

  • Confirm whether Redhat Enterprise Linux Desktop is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2018-5156.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2018-5156

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