THREATPORT/VULNERABILITY/CVE-2018-19115
CRITICAL SEVERITY

CVE-2018-19115

Keepalived vulnerability

CVSS
9.8
EPSS
3.7%
EPSS pct
89th
Exploited
No known
keepalived before 2.0.7 has a heap-based buffer overflow when parsing HTTP status codes resulting in DoS or possibly unspecified other impact, because extract_status_code in lib/html.c has no validation of the status code and instead writes an unlimited amount of data to the heap.
Affected vendor
Keepalived
Affected product
Keepalived
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness type (CWE)
Published
2018-11-08

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 3.7% 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-2018-19115

  • Confirm whether Keepalived Keepalived is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2018-19115.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2018-19115

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2018-19115 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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