Upstream information
Description
Sending "NOOP (((...)))" command with 4000 parenthesis open+close results in ~1MB extra memory usage. Longer commands will result in client disconnection. This 1 MB can be left allocated for longer time periods by not sending the command ending LF. So attacker could connect possibly from even a single IP and create 1000 connections to allocate 1 GB of memory, which would likely result in reaching VSZ limit and killing the process and its other proxied connections. Attacker could connect possibly from even a single IP and create 1000 connections to allocate 1 GB of memory, which would likely result in reaching VSZ limit and killing the process and its other proxied connections. Install fixed version, there is no other remediation. No publicly available exploits are known.SUSE information
Overall state of this security issue: Pending
This issue is currently rated as having moderate severity.
| CVSS detail | CNA (Open-Xchange) | SUSE |
|---|---|---|
| Base Score | 4.3 | 4.3 |
| Vector | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L |
| Attack Vector | Network | Network |
| Attack Complexity | Low | Low |
| Privileges Required | Low | Low |
| User Interaction | None | None |
| Scope | Unchanged | Unchanged |
| Confidentiality Impact | None | None |
| Integrity Impact | None | None |
| Availability Impact | Low | Low |
| CVSSv3 Version | 3.1 | 3.1 |
| CVSS detail | SUSE |
|---|---|
| Base Score | 6.9 |
| Vector | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N |
| Attack Vector | Network |
| Attack Complexity | Low |
| Attack Requirements | None |
| Privileges Required | None |
| User Interaction | None |
| Vulnerable System Confidentiality Impact | None |
| Vulnerable System Integrity Impact | None |
| Vulnerable System Availability Impact | Low |
| Subsequent System Confidentiality Impact | None |
| Subsequent System Integrity Impact | None |
| Subsequent System Availability Impact | None |
| CVSSv4 Version | 4.0 |
List of released packages
| Product(s) | Fixed package version(s) | References |
|---|---|---|
| openSUSE Tumbleweed |
| Patchnames: openSUSE-Tumbleweed-2026-10442 |
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Please note that this evaluation state might be work in progress, incomplete or outdated.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 High Performance Computing 15 SP7 | dovecot | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP7 | dovecot23 | Affected |
| SUSE Linux Enterprise Module for Server Applications 15 SP7 | dovecot | Not affected |
| SUSE Linux Enterprise Module for Server Applications 15 SP7 | dovecot23 | Affected |
| SUSE Linux Enterprise Server 15 SP7 | dovecot | Not affected |
| SUSE Linux Enterprise Server 15 SP7 | dovecot23 | Affected |
| SUSE Linux Enterprise Server 16.0 | dovecot | Not affected |
| SUSE Linux Enterprise Server 16.0 | dovecot24 | Affected |
| SUSE Linux Enterprise Server 16.1 | dovecot | Not affected |
| SUSE Linux Enterprise Server 16.1 | dovecot24 | Affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP7 | dovecot | Not affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP7 | dovecot23 | Affected |
| SUSE Linux Enterprise Server for SAP applications 16.0 | dovecot | Not affected |
| SUSE Linux Enterprise Server for SAP applications 16.0 | dovecot24 | Affected |
| SUSE Linux Enterprise Server for SAP applications 16.1 | dovecot | Not affected |
| SUSE Linux Enterprise Server for SAP applications 16.1 | dovecot24 | Affected |
| openSUSE Leap 15.6 | dovecot | Not affected |
| openSUSE Leap 15.6 | dovecot23 | Affected |
| Products under Long Term Service Pack support and receiving important and critical security fixes. | ||
| SUSE Linux Enterprise High Performance Computing 15 SP4 | dovecot | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP4 | dovecot23 | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS | dovecot | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS | dovecot23 | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP5 | dovecot | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP5 | dovecot23 | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS | dovecot | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS | dovecot23 | Affected |
| SUSE Linux Enterprise Module for Server Applications 15 SP4 | dovecot | Not affected |
| SUSE Linux Enterprise Module for Server Applications 15 SP4 | dovecot23 | Affected |
| SUSE Linux Enterprise Module for Server Applications 15 SP5 | dovecot | Not affected |
| SUSE Linux Enterprise Module for Server Applications 15 SP5 | dovecot23 | Affected |
| SUSE Linux Enterprise Module for Server Applications 15 SP6 | dovecot | Not affected |
| SUSE Linux Enterprise Module for Server Applications 15 SP6 | dovecot23 | Affected |
| SUSE Linux Enterprise Server 12 SP5 | dovecot | Not affected |
| SUSE Linux Enterprise Server 12 SP5 | dovecot22 | Affected |
| SUSE Linux Enterprise Server 12 SP5-LTSS | dovecot | Not affected |
| SUSE Linux Enterprise Server 12 SP5-LTSS | dovecot22 | Affected |
| SUSE Linux Enterprise Server 12 SP5-LTSS Extended Security | dovecot | Not affected |
| SUSE Linux Enterprise Server 12 SP5-LTSS Extended Security | dovecot22 | Affected |
| SUSE Linux Enterprise Server 15 SP4 | dovecot | Not affected |
| SUSE Linux Enterprise Server 15 SP4 | dovecot23 | Affected |
| SUSE Linux Enterprise Server 15 SP4-LTSS | dovecot | Not affected |
| SUSE Linux Enterprise Server 15 SP4-LTSS | dovecot23 | Affected |
| SUSE Linux Enterprise Server 15 SP5 | dovecot | Not affected |
| SUSE Linux Enterprise Server 15 SP5 | dovecot23 | Affected |
| SUSE Linux Enterprise Server 15 SP5-LTSS | dovecot | Not affected |
| SUSE Linux Enterprise Server 15 SP5-LTSS | dovecot23 | Affected |
| SUSE Linux Enterprise Server 15 SP6 | dovecot | Not affected |
| SUSE Linux Enterprise Server 15 SP6 | dovecot23 | Affected |
| SUSE Linux Enterprise Server 15 SP6-LTSS | dovecot | Not affected |
| SUSE Linux Enterprise Server 15 SP6-LTSS | dovecot23 | Affected |
| SUSE Linux Enterprise Server LTSS Extended Security 12 SP5 | dovecot | Not affected |
| SUSE Linux Enterprise Server LTSS Extended Security 12 SP5 | dovecot22 | Affected |
| SUSE Linux Enterprise Server for SAP Applications 12 SP5 | dovecot22 | Affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP6 | dovecot | Not affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP6 | dovecot23 | Affected |
| SUSE Manager Proxy 4.3 | dovecot | Not affected |
| SUSE Manager Proxy 4.3 | dovecot23 | Affected |
| SUSE Manager Proxy LTS 4.3 | dovecot | Not affected |
| SUSE Manager Proxy LTS 4.3 | dovecot23 | Affected |
| SUSE Manager Retail Branch Server 4.3 | dovecot | Not affected |
| SUSE Manager Retail Branch Server 4.3 | dovecot23 | Affected |
| SUSE Manager Retail Branch Server LTS 4.3 | dovecot | Not affected |
| SUSE Manager Retail Branch Server LTS 4.3 | dovecot23 | Affected |
| SUSE Manager Server 4.3 | dovecot | Not affected |
| SUSE Manager Server 4.3 | dovecot23 | Affected |
| SUSE Manager Server LTS 4.3 | dovecot | Not affected |
| SUSE Manager Server LTS 4.3 | dovecot23 | Affected |
| Products past their end of life and not receiving proactive updates anymore. | ||
| HPE Helion OpenStack 8 | dovecot | Not affected |
| HPE Helion OpenStack 8 | dovecot22 | Affected |
| SUSE CaaS Platform 4.0 | dovecot | Not affected |
| SUSE CaaS Platform 4.0 | dovecot23 | Affected |
| SUSE Enterprise Storage 6 | dovecot | Not affected |
| SUSE Enterprise Storage 6 | dovecot23 | Affected |
| SUSE Enterprise Storage 7 | dovecot | Not affected |
| SUSE Enterprise Storage 7 | dovecot23 | Affected |
| SUSE Enterprise Storage 7.1 | dovecot | Not affected |
| SUSE Enterprise Storage 7.1 | dovecot23 | Affected |
| SUSE Linux Enterprise Desktop 12 | dovecot22 | Affected |
| SUSE Linux Enterprise Desktop 12 SP1 | dovecot22 | Affected |
| SUSE Linux Enterprise Desktop 12 SP2 | dovecot22 | Affected |
| SUSE Linux Enterprise Desktop 12 SP3 | dovecot22 | Affected |
| SUSE Linux Enterprise Desktop 12 SP4 | dovecot22 | Affected |
| SUSE Linux Enterprise High Performance Computing 15 | dovecot | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP1 | dovecot | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP1 | dovecot23 | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP1-ESPOS | dovecot | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP1-ESPOS | dovecot23 | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP1-LTSS | dovecot | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP1-LTSS | dovecot23 | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP2 | dovecot | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP2 | dovecot23 | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP2-ESPOS | dovecot | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP2-ESPOS | dovecot23 | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS | dovecot | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS | dovecot23 | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP3 | dovecot | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP3 | dovecot23 | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP3-ESPOS | dovecot | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP3-ESPOS | dovecot23 | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS | dovecot | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS | dovecot23 | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS | dovecot | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS | dovecot23 | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS | dovecot | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS | dovecot23 | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP6 | dovecot | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP6 | dovecot23 | Affected |
| SUSE Linux Enterprise High Performance Computing 15-ESPOS | dovecot | Not affected |
| SUSE Linux Enterprise High Performance Computing 15-LTSS | dovecot | Not affected |
| SUSE Linux Enterprise Module for Server Applications 15 | dovecot | Not affected |
| SUSE Linux Enterprise Module for Server Applications 15 SP1 | dovecot | Not affected |
| SUSE Linux Enterprise Module for Server Applications 15 SP1 | dovecot23 | Affected |
| SUSE Linux Enterprise Module for Server Applications 15 SP2 | dovecot | Not affected |
| SUSE Linux Enterprise Module for Server Applications 15 SP2 | dovecot23 | Affected |
| SUSE Linux Enterprise Module for Server Applications 15 SP3 | dovecot | Not affected |
| SUSE Linux Enterprise Module for Server Applications 15 SP3 | dovecot23 | Affected |
| SUSE Linux Enterprise Point of Sale 12 SP2-CLIENT | dovecot | Not affected |
| SUSE Linux Enterprise Point of Sale 12 SP2-CLIENT | dovecot22 | Affected |
| SUSE Linux Enterprise Real Time 15 SP2 | dovecot | Not affected |
| SUSE Linux Enterprise Real Time 15 SP2 | dovecot23 | Affected |
| SUSE Linux Enterprise Real Time 15 SP3 | dovecot | Not affected |
| SUSE Linux Enterprise Real Time 15 SP3 | dovecot23 | Affected |
| SUSE Linux Enterprise Real Time 15 SP4 | dovecot | Not affected |
| SUSE Linux Enterprise Real Time 15 SP4 | dovecot23 | Affected |
| SUSE Linux Enterprise Server 12 | dovecot | Not affected |
| SUSE Linux Enterprise Server 12 | dovecot22 | Affected |
| SUSE Linux Enterprise Server 12 SP1 | dovecot | Not affected |
| SUSE Linux Enterprise Server 12 SP1 | dovecot22 | Affected |
| SUSE Linux Enterprise Server 12 SP1-LTSS | dovecot | Not affected |
| SUSE Linux Enterprise Server 12 SP1-LTSS | dovecot22 | Affected |
| SUSE Linux Enterprise Server 12 SP2 | dovecot | Not affected |
| SUSE Linux Enterprise Server 12 SP2 | dovecot22 | Affected |
| SUSE Linux Enterprise Server 12 SP2-BCL | dovecot | Not affected |
| SUSE Linux Enterprise Server 12 SP2-BCL | dovecot22 | Affected |
| SUSE Linux Enterprise Server 12 SP2-ESPOS | dovecot | Not affected |
| SUSE Linux Enterprise Server 12 SP2-ESPOS | dovecot22 | Affected |
| SUSE Linux Enterprise Server 12 SP2-LTSS | dovecot | Not affected |
| SUSE Linux Enterprise Server 12 SP2-LTSS | dovecot22 | Affected |
| SUSE Linux Enterprise Server 12 SP3 | dovecot | Not affected |
| SUSE Linux Enterprise Server 12 SP3 | dovecot22 | Affected |
| SUSE Linux Enterprise Server 12 SP3-BCL | dovecot | Not affected |
| SUSE Linux Enterprise Server 12 SP3-BCL | dovecot22 | Affected |
| SUSE Linux Enterprise Server 12 SP3-ESPOS | dovecot | Not affected |
| SUSE Linux Enterprise Server 12 SP3-ESPOS | dovecot22 | Affected |
| SUSE Linux Enterprise Server 12 SP3-LTSS | dovecot | Not affected |
| SUSE Linux Enterprise Server 12 SP3-LTSS | dovecot22 | Affected |
| SUSE Linux Enterprise Server 12 SP4 | dovecot | Not affected |
| SUSE Linux Enterprise Server 12 SP4 | dovecot22 | Affected |
| SUSE Linux Enterprise Server 12 SP4-ESPOS | dovecot | Not affected |
| SUSE Linux Enterprise Server 12 SP4-ESPOS | dovecot22 | Affected |
| SUSE Linux Enterprise Server 12 SP4-LTSS | dovecot | Not affected |
| SUSE Linux Enterprise Server 12 SP4-LTSS | dovecot22 | Affected |
| SUSE Linux Enterprise Server 12-LTSS | dovecot | Not affected |
| SUSE Linux Enterprise Server 12-LTSS | dovecot22 | Affected |
| SUSE Linux Enterprise Server 15 | dovecot | Not affected |
| SUSE Linux Enterprise Server 15 SP1 | dovecot | Not affected |
| SUSE Linux Enterprise Server 15 SP1 | dovecot23 | Affected |
| SUSE Linux Enterprise Server 15 SP1-BCL | dovecot | Not affected |
| SUSE Linux Enterprise Server 15 SP1-BCL | dovecot23 | Affected |
| SUSE Linux Enterprise Server 15 SP1-LTSS | dovecot | Not affected |
| SUSE Linux Enterprise Server 15 SP1-LTSS | dovecot23 | Affected |
| SUSE Linux Enterprise Server 15 SP2 | dovecot | Not affected |
| SUSE Linux Enterprise Server 15 SP2 | dovecot23 | Affected |
| SUSE Linux Enterprise Server 15 SP2-BCL | dovecot | Not affected |
| SUSE Linux Enterprise Server 15 SP2-BCL | dovecot23 | Affected |
| SUSE Linux Enterprise Server 15 SP2-LTSS | dovecot | Not affected |
| SUSE Linux Enterprise Server 15 SP2-LTSS | dovecot23 | Affected |
| SUSE Linux Enterprise Server 15 SP3 | dovecot | Not affected |
| SUSE Linux Enterprise Server 15 SP3 | dovecot23 | Affected |
| SUSE Linux Enterprise Server 15 SP3-BCL | dovecot | Not affected |
| SUSE Linux Enterprise Server 15 SP3-BCL | dovecot23 | Affected |
| SUSE Linux Enterprise Server 15 SP3-LTSS | dovecot | Not affected |
| SUSE Linux Enterprise Server 15 SP3-LTSS | dovecot23 | Affected |
| SUSE Linux Enterprise Server 15-LTSS | dovecot | Not affected |
| SUSE Linux Enterprise Server for Raspberry Pi 12 SP2 | dovecot | Not affected |
| SUSE Linux Enterprise Server for Raspberry Pi 12 SP2 | dovecot22 | Affected |
| SUSE Linux Enterprise Server for SAP Applications 12 | dovecot22 | Affected |
| SUSE Linux Enterprise Server for SAP Applications 12 SP1 | dovecot | Not affected |
| SUSE Linux Enterprise Server for SAP Applications 12 SP1 | dovecot22 | Affected |
| SUSE Linux Enterprise Server for SAP Applications 12 SP2 | dovecot | Not affected |
| SUSE Linux Enterprise Server for SAP Applications 12 SP2 | dovecot22 | Affected |
| SUSE Linux Enterprise Server for SAP Applications 12 SP3 | dovecot | Not affected |
| SUSE Linux Enterprise Server for SAP Applications 12 SP3 | dovecot22 | Affected |
| SUSE Linux Enterprise Server for SAP Applications 12 SP4 | dovecot | Not affected |
| SUSE Linux Enterprise Server for SAP Applications 12 SP4 | dovecot22 | Affected |
| SUSE Linux Enterprise Server for SAP Applications 15 | dovecot | Not affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP1 | dovecot | Not affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP1 | dovecot23 | Affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP2 | dovecot | Not affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP2 | dovecot23 | Affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP3 | dovecot | Not affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP3 | dovecot23 | Affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP4 | dovecot | Not affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP4 | dovecot23 | Affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP5 | dovecot | Not affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP5 | dovecot23 | Affected |
| SUSE Linux Enterprise Software Development Kit 12 | dovecot22 | Affected |
| SUSE Linux Enterprise Software Development Kit 12 SP1 | dovecot22 | Affected |
| SUSE Linux Enterprise Software Development Kit 12 SP2 | dovecot22 | Affected |
| SUSE Linux Enterprise Software Development Kit 12 SP3 | dovecot22 | Affected |
| SUSE Linux Enterprise Software Development Kit 12 SP4 | dovecot22 | Affected |
| SUSE Linux Enterprise Software Development Kit 12 SP5 | dovecot22 | Affected |
| SUSE Manager Proxy 4.0 | dovecot | Not affected |
| SUSE Manager Proxy 4.0 | dovecot23 | Affected |
| SUSE Manager Proxy 4.1 | dovecot | Not affected |
| SUSE Manager Proxy 4.1 | dovecot23 | Affected |
| SUSE Manager Proxy 4.2 | dovecot | Not affected |
| SUSE Manager Proxy 4.2 | dovecot23 | Affected |
| SUSE Manager Retail Branch Server 4.0 | dovecot | Not affected |
| SUSE Manager Retail Branch Server 4.0 | dovecot23 | Affected |
| SUSE Manager Retail Branch Server 4.1 | dovecot | Not affected |
| SUSE Manager Retail Branch Server 4.1 | dovecot23 | Affected |
| SUSE Manager Retail Branch Server 4.2 | dovecot | Not affected |
| SUSE Manager Retail Branch Server 4.2 | dovecot23 | Affected |
| SUSE Manager Server 4.0 | dovecot | Not affected |
| SUSE Manager Server 4.0 | dovecot23 | Affected |
| SUSE Manager Server 4.1 | dovecot | Not affected |
| SUSE Manager Server 4.1 | dovecot23 | Affected |
| SUSE Manager Server 4.2 | dovecot | Not affected |
| SUSE Manager Server 4.2 | dovecot23 | Affected |
| SUSE OpenStack Cloud 7 | dovecot | Not affected |
| SUSE OpenStack Cloud 7 | dovecot22 | Affected |
| SUSE OpenStack Cloud 8 | dovecot | Not affected |
| SUSE OpenStack Cloud 8 | dovecot22 | Affected |
| SUSE OpenStack Cloud 9 | dovecot | Not affected |
| SUSE OpenStack Cloud 9 | dovecot22 | Affected |
| SUSE OpenStack Cloud Crowbar 8 | dovecot | Not affected |
| SUSE OpenStack Cloud Crowbar 8 | dovecot22 | Affected |
| SUSE OpenStack Cloud Crowbar 9 | dovecot | Not affected |
| SUSE OpenStack Cloud Crowbar 9 | dovecot22 | Affected |
| openSUSE Leap 15.3 | dovecot | Not affected |
| openSUSE Leap 15.3 | dovecot23 | Affected |
| openSUSE Leap 15.4 | dovecot | Not affected |
| openSUSE Leap 15.4 | dovecot23 | Affected |
| openSUSE Leap 15.5 | dovecot | Not affected |
| openSUSE Leap 15.5 | dovecot23 | Affected |
SUSE Timeline for this CVE
CVE page created: Fri Mar 27 12:03:59 2026CVE page last modified: Sat Mar 28 01:54:20 2026