THREATPORT/VULNERABILITY/CVE-2018-5159
CRITICAL SEVERITY

CVE-2018-5159

Debian Linux vulnerability

CVSS
9.8
EPSS
21.3%
EPSS pct
97th
Exploited
No known
An integer overflow can occur in the Skia library due to 32-bit integer use in an array without integer overflow checks, resulting in possible out-of-bounds writes. This could lead to a potentially exploitable crash triggerable by web content. This vulnerability affects Thunderbird < 52.8, Thunderbird ESR < 52.8, Firefox < 60, and Firefox ESR < 52.8.
Affected vendor
Debian
Affected product
Debian Linux
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-190 — Integer Overflow or Wraparound
  • CWE-787 — Out-of-bounds Write
Published
2018-06-11

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 21.3% reflects a moderate probability of exploitation activity in the wild over the next 30 days, placing it above 97% of all scored CVEs.

Check your external exposure to CVE-2018-5159

  • Confirm whether Debian Debian Linux is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2018-5159.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2018-5159

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