CVE-2019-18609

Publication date 1 December 2019

Last updated 25 August 2025

Ubuntu priority

Cvss 3 Severity Score

Description

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.

Status

Show unmaintained releases

Package	Ubuntu Release	Status
librabbitmq	19.10 eoan	Fixed 0.9.0-0.2ubuntu0.19.10.1
	19.04 disco	Fixed 0.9.0-0.2ubuntu0.19.04.1
	18.04 LTS bionic	Fixed 0.8.0-1ubuntu0.18.04.2
	16.04 LTS xenial	Fixed 0.7.1-1ubuntu0.2
	14.04 LTS trusty	Fixed 0.4.1-1ubuntu0.1~esm1

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Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package	Patch details
librabbitmq	Upstream: fc85be7

Severity score breakdown

Parameter	Value
Base score	9.8 · Critical
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	None
Scope	Unchanged
Confidentiality	High
Integrity impact	High
Availability impact	High
Vector	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H