Upstream information
Description
RabbitMQ is a messaging and streaming broker. Prior to versions 3.13.15, 4.0.20, 4.1.11, and 4.2.6, parse_array_primitive/2 for constructor 0x45 (list0) returns an element with byte-width B = 0. The enclosing array32 parser at line 148 reads a 4-byte Count from the wire and loops Count times consuming B bytes each , with B = 0, no input is consumed and the loop builds a list of Count empty elements bounded only by the 32-bit field. The SASL-mechanisms / SASL-init frame is parsed by amqp10_framing:decode_bin/1 from rabbit_amqp_reader.erl:412 before authentication completes. The pre-auth incoming_max_frame_size (default 8192 bytes) caps the frame, not the Count field, so a 19-byte payload with Count = 0xFFFFFFFF is accepted. No max_heap_size is set on the reader process. An unauthenticated network attacker can crash any RabbitMQ node that has the AMQP 1.0 listener enabled (default port 5672) by sending a single ~19-byte frame. The reader process attempts to build a list of ~4 billion empty elements, exhausting heap memory and terminating the Erlang VM. All tenants and protocols on the node lose service. Preconditions include Network reachability to the AMQP listener (port 5672, enabled by default) No authentication required. This issue is fixed in versions 3.13.15, 4.0.20, 4.1.11, and 4.2.6.SUSE information
Overall state of this security issue: Pending
This issue is currently rated as having important severity.
| CVSS detail | SUSE |
|---|---|
| Base Score | 7.5 |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| Attack Vector | Network |
| Attack Complexity | Low |
| Privileges Required | None |
| User Interaction | None |
| Scope | Unchanged |
| Confidentiality Impact | None |
| Integrity Impact | None |
| Availability Impact | High |
| CVSSv3 Version | 3.1 |
| CVSS detail | CNA (GitHub) | SUSE |
|---|---|---|
| Base Score | 8.2 | 8.2 |
| Vector | CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X | CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N |
| Attack Vector | Network | Network |
| Attack Complexity | Low | Low |
| Attack Requirements | Present | Present |
| Privileges Required | None | None |
| User Interaction | None | None |
| Vulnerable System Confidentiality Impact | None | None |
| Vulnerable System Integrity Impact | None | None |
| Vulnerable System Availability Impact | High | High |
| Subsequent System Confidentiality Impact | None | None |
| Subsequent System Integrity Impact | None | None |
| Subsequent System Availability Impact | None | None |
| CVSSv4 Version | 4.0 | 4.0 |
Status of this issue by product and package
Please note that this evaluation state might be work in progress, incomplete or outdated. Also information for service packs in the LTSS phase is only included for issues meeting the LTSS criteria. If in doubt, feel free to contact us for clarification. The updates are grouped by state of their lifecycle. SUSE product lifecycles are documented on the lifecycle page.
| Product(s) | Source package | State |
|---|---|---|
| Products under general support and receiving all security fixes. | ||
| SUSE Linux Enterprise Module for Server Applications 15 SP7 | rabbitmq-server | Affected |
| SUSE Linux Enterprise Module for Server Applications 15 SP7 | rabbitmq-server313 | Affected |
| SUSE Linux Enterprise Server 15 SP7 | rabbitmq-server | Affected |
| SUSE Linux Enterprise Server 15 SP7 | rabbitmq-server313 | Affected |
| SUSE Linux Enterprise Server 16.0 | rabbitmq-server | Affected |
| SUSE Linux Enterprise Server 16.1 | rabbitmq-server | Affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP7 | rabbitmq-server | Affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP7 | rabbitmq-server313 | Affected |
| SUSE Linux Enterprise Server for SAP applications 16.0 | rabbitmq-server | Affected |
| SUSE Linux Enterprise Server for SAP applications 16.1 | rabbitmq-server | Affected |
| openSUSE Leap 16.0 | rabbitmq-server | Affected |
| Products under Long Term Service Pack support and receiving important and critical security fixes. | ||
| SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS | rabbitmq-server | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP5 | rabbitmq-server | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS | rabbitmq-server | Affected |
| SUSE Linux Enterprise Module for Server Applications 15 SP4 | rabbitmq-server | Affected |
| SUSE Linux Enterprise Module for Server Applications 15 SP5 | rabbitmq-server | Affected |
| SUSE Linux Enterprise Module for Server Applications 15 SP6 | rabbitmq-server | Affected |
| SUSE Linux Enterprise Module for Server Applications 15 SP6 | rabbitmq-server313 | Affected |
| SUSE Linux Enterprise Server 15 SP4 | rabbitmq-server | Affected |
| SUSE Linux Enterprise Server 15 SP4-LTSS | rabbitmq-server | Affected |
| SUSE Linux Enterprise Server 15 SP5 | rabbitmq-server | Affected |
| SUSE Linux Enterprise Server 15 SP5-LTSS | rabbitmq-server | Affected |
| SUSE Linux Enterprise Server 15 SP6 | rabbitmq-server | Affected |
| SUSE Linux Enterprise Server 15 SP6 | rabbitmq-server313 | Affected |
| SUSE Linux Enterprise Server 15 SP6-LTSS | rabbitmq-server | Affected |
| SUSE Linux Enterprise Server 15 SP6-LTSS | rabbitmq-server313 | Affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP4 | rabbitmq-server | Affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP5 | rabbitmq-server | Affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP6 | rabbitmq-server | Affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP6 | rabbitmq-server313 | Affected |
| Products past their end of life and not receiving proactive updates anymore. | ||
| SUSE Enterprise Storage 7 | rabbitmq-server | Affected |
| SUSE Enterprise Storage 7.1 | rabbitmq-server | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP2 | rabbitmq-server | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP2-ESPOS | rabbitmq-server | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS | rabbitmq-server | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP3 | rabbitmq-server | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP3-ESPOS | rabbitmq-server | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS | rabbitmq-server | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP4 | rabbitmq-server | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS | rabbitmq-server | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS | rabbitmq-server | Affected |
| SUSE Linux Enterprise Module for Server Applications 15 SP2 | rabbitmq-server | Affected |
| SUSE Linux Enterprise Module for Server Applications 15 SP3 | rabbitmq-server | Affected |
| SUSE Linux Enterprise Real Time 15 SP2 | rabbitmq-server | Affected |
| SUSE Linux Enterprise Real Time 15 SP3 | rabbitmq-server | Affected |
| SUSE Linux Enterprise Real Time 15 SP4 | rabbitmq-server | Affected |
| SUSE Linux Enterprise Server 15 SP2 | rabbitmq-server | Affected |
| SUSE Linux Enterprise Server 15 SP2-BCL | rabbitmq-server | Affected |
| SUSE Linux Enterprise Server 15 SP2-LTSS | rabbitmq-server | Affected |
| SUSE Linux Enterprise Server 15 SP3 | rabbitmq-server | Affected |
| SUSE Linux Enterprise Server 15 SP3-BCL | rabbitmq-server | Affected |
| SUSE Linux Enterprise Server 15 SP3-LTSS | rabbitmq-server | Affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP2 | rabbitmq-server | Affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP3 | rabbitmq-server | Affected |
| SUSE Manager Proxy 4.1 | rabbitmq-server | Affected |
| SUSE Manager Proxy 4.2 | rabbitmq-server | Affected |
| SUSE Manager Proxy 4.3 | rabbitmq-server | Affected |
| SUSE Manager Proxy LTS 4.3 | rabbitmq-server | Affected |
| SUSE Manager Retail Branch Server 4.1 | rabbitmq-server | Affected |
| SUSE Manager Retail Branch Server 4.2 | rabbitmq-server | Affected |
| SUSE Manager Retail Branch Server 4.3 | rabbitmq-server | Affected |
| SUSE Manager Retail Branch Server LTS 4.3 | rabbitmq-server | Affected |
| SUSE Manager Server 4.1 | rabbitmq-server | Affected |
| SUSE Manager Server 4.2 | rabbitmq-server | Affected |
| SUSE Manager Server 4.3 | rabbitmq-server | Affected |
| SUSE Manager Server LTS 4.3 | rabbitmq-server | Affected |
| openSUSE Leap 15.3 | rabbitmq-server | Affected |
| openSUSE Leap 15.4 | rabbitmq-server | Affected |
| openSUSE Leap 15.5 | rabbitmq-server | Affected |
| openSUSE Leap 15.6 | rabbitmq-server | Affected |
| openSUSE Leap 15.6 | rabbitmq-server313 | Affected |
SUSE Timeline for this CVE
CVE page created: Thu Sep 24 14:37:03 2026CVE page last modified: Thu Sep 24 15:37:04 2026