THREATPORT/VULNERABILITY/CVE-2019-18609
CRITICAL SEVERITY

CVE-2019-18609

Rabbitmq C vulnerability

CVSS
9.8
EPSS
3.3%
EPSS pct
87th
Exploited
No known
An issue was discovered in amqp_handle_input in amqp_connection.c in rabbitmq-c 0.9.0. There is an integer overflow that leads to heap memory corruption in the handling of CONNECTION_STATE_HEADER. A rogue server could return a malicious frame header that leads to a smaller target_size value than needed. This condition is then carried on to a memcpy function that copies too much data into a heap buffer.
Affected vendor
Rabbitmq C Project
Affected product
Rabbitmq C
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness type (CWE)
Published
2019-12-01

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 3.3% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 87% of all scored CVEs.

Check your external exposure to CVE-2019-18609

  • Confirm whether Rabbitmq C Project Rabbitmq C is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2019-18609.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2019-18609

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2019-18609 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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