CVE-2019-18609 Information

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.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Reference

https://github.com/alanxz/rabbitmq-c/blob/master/ChangeLog.md https://github.com/alanxz/rabbitmq-c/commit/fc85be7123050b91b054e45b91c78d3241a5047a https://lists.debian.org/debian-lts-announce/2019/12/msg00004.html https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WA7CPNVYMF6OQNIYNLWUY6U2GTKFOKH3/ https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/XQER6XTKYMHNQR7QTHW7DJAH645WQROU/ https://news.ycombinator.com/item?id=21681976 https://security.gentoo.org/glsa/202003-07 https://usn.ubuntu.com/4214-1/ https://usn.ubuntu.com/4214-2/

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

9.8