Upstream information

CVE-2026-18313 at MITRE

Description

rpcapd can allocate up to 65536 bytes per each RPCAP_MSG_UPDATEFILTER_REQ or RPCAP_MSG_STARTCAP_REQ message received from the client, but it never frees the memory, so it leaks memory even under normal use. A malicious client can cause the server to leak memory substantially faster.

SUSE information

Overall state of this security issue: Revisit

This issue is currently rated as having moderate severity.

CVSS v3 Scores
CVSS detail CNA (Tcpdump Group) SUSE
Base Score 4.3 5.3
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:N/UI:N/S:U/C:N/I:N/A:L
Attack Vector Network Network
Attack Complexity Low Low
Privileges Required Low None
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 v4 Scores
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
SUSE Bugzilla entry: 1279784 [IN_PROGRESS]

No SUSE Security Announcements cross referenced.

List of packages in QA

Product(s) Package(s)
SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS
  • libpcap-devel >= 1.10.1-150400.3.12.1
  • libpcap1 >= 1.10.1-150400.3.12.1
SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS
  • libpcap-devel >= 1.10.1-150400.3.12.1
  • libpcap1 >= 1.10.1-150400.3.12.1
SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS
  • libpcap-devel >= 1.10.1-150400.3.12.1
  • libpcap1 >= 1.10.1-150400.3.12.1
SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS
  • libpcap-devel >= 1.10.1-150400.3.12.1
  • libpcap1 >= 1.10.1-150400.3.12.1
SUSE Linux Enterprise Micro 5.3
  • libpcap1 >= 1.10.1-150400.3.12.1
SUSE Linux Enterprise Micro 5.4
  • libpcap1 >= 1.10.1-150400.3.12.1
SUSE Linux Enterprise Micro 5.5
  • libpcap1 >= 1.10.1-150400.3.12.1
SUSE Linux Enterprise Module for Basesystem 15 SP7
  • libpcap-devel >= 1.10.5-150700.3.13.1
  • libpcap1 >= 1.10.5-150700.3.13.1
SUSE Linux Enterprise Server 15 SP7
  • libpcap-devel >= 1.10.5-150700.3.13.1
  • libpcap1 >= 1.10.5-150700.3.13.1
SUSE Linux Enterprise Desktop 15 SP7
  • libpcap-devel >= 1.10.5-150700.3.13.1
  • libpcap1 >= 1.10.5-150700.3.13.1
SUSE Linux Enterprise Server for SAP Applications 15 SP7
  • libpcap-devel >= 1.10.5-150700.3.13.1
  • libpcap1 >= 1.10.5-150700.3.13.1
SUSE Linux Enterprise Module for Package Hub 15 SP7
  • libpcap1-32bit >= 1.10.5-150700.3.13.1
SUSE Linux Enterprise Server 15 SP4-LTSS
  • libpcap-devel >= 1.10.1-150400.3.12.1
  • libpcap1 >= 1.10.1-150400.3.12.1
SUSE Linux Enterprise Server 15 SP4-LTSS
  • libpcap-devel >= 1.10.1-150400.3.12.1
  • libpcap1 >= 1.10.1-150400.3.12.1
SUSE Linux Enterprise Server 15 SP5-LTSS
  • libpcap-devel >= 1.10.1-150400.3.12.1
  • libpcap1 >= 1.10.1-150400.3.12.1
SUSE Linux Enterprise Server 15 SP5-LTSS
  • libpcap-devel >= 1.10.1-150400.3.12.1
  • libpcap1 >= 1.10.1-150400.3.12.1
SUSE Linux Enterprise Server 15 SP6-LTSS
  • libpcap-devel >= 1.10.4-150600.3.12.1
  • libpcap1 >= 1.10.4-150600.3.12.1
SUSE Linux Enterprise Server 15 SP6-LTSS
  • libpcap-devel >= 1.10.4-150600.3.12.1
  • libpcap1 >= 1.10.4-150600.3.12.1
SUSE Linux Enterprise Server for SAP Applications 15 SP4
  • libpcap-devel >= 1.10.1-150400.3.12.1
  • libpcap1 >= 1.10.1-150400.3.12.1
SUSE Linux Enterprise Server for SAP Applications 15 SP5
  • libpcap-devel >= 1.10.1-150400.3.12.1
  • libpcap1 >= 1.10.1-150400.3.12.1
SUSE Linux Enterprise Server for SAP Applications 15 SP6
  • libpcap-devel >= 1.10.4-150600.3.12.1
  • libpcap1 >= 1.10.4-150600.3.12.1

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 Desktop 15 SP7 libpcap In progress
SUSE Linux Enterprise High Performance Computing 12 libpcap Not affected
SUSE Linux Enterprise Micro 5.3 libpcap In progress
SUSE Linux Enterprise Micro 5.4 libpcap In progress
SUSE Linux Enterprise Micro 5.5 libpcap In progress
SUSE Linux Enterprise Module for Basesystem 15 SP7 libpcap In progress
SUSE Linux Enterprise Module for Package Hub 15 SP7 libpcap In progress
SUSE Linux Enterprise Server 15 SP7 libpcap In progress
SUSE Linux Enterprise Server 16.0 libpcap In progress
SUSE Linux Enterprise Server 16.1 libpcap Analysis
SUSE Linux Enterprise Server for SAP Applications 15 SP7 libpcap In progress
SUSE Linux Enterprise Server for SAP applications 16.0 libpcap In progress
SUSE Linux Enterprise Server for SAP applications 16.1 libpcap Analysis
SUSE Linux Micro 6.0 libpcap Affected
SUSE Linux Micro 6.1 libpcap Affected
SUSE Linux Micro 6.2 libpcap In progress
openSUSE Leap 16.0 libpcap Affected
Products under Long Term Service Pack support and receiving important and critical security fixes.
SUSE Linux Enterprise High Performance Computing 12 SP5 libpcap Not affected
SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS libpcap In progress
SUSE Linux Enterprise High Performance Computing 15 SP5 libpcap Affected
SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS libpcap In progress
SUSE Linux Enterprise Module for Basesystem 15 SP4 libpcap Affected
SUSE Linux Enterprise Module for Basesystem 15 SP5 libpcap Affected
SUSE Linux Enterprise Module for Basesystem 15 SP6 libpcap Affected
SUSE Linux Enterprise Server 12 SP5 libpcap Not affected
SUSE Linux Enterprise Server 12 SP5-LTSS libpcap Not affected
SUSE Linux Enterprise Server 15 SP4 libpcap Affected
SUSE Linux Enterprise Server 15 SP4-LTSS libpcap In progress
SUSE Linux Enterprise Server 15 SP5 libpcap Affected
SUSE Linux Enterprise Server 15 SP5-LTSS libpcap In progress
SUSE Linux Enterprise Server 15 SP6 libpcap Affected
SUSE Linux Enterprise Server 15 SP6-LTSS libpcap In progress
SUSE Linux Enterprise Server LTSS Extended Security 12 SP5 libpcap Not affected
SUSE Linux Enterprise Server for SAP Applications 12 SP5 libpcap Not affected
SUSE Linux Enterprise Server for SAP Applications 15 SP4 libpcap In progress
SUSE Linux Enterprise Server for SAP Applications 15 SP5 libpcap In progress
SUSE Linux Enterprise Server for SAP Applications 15 SP6 libpcap In progress
Products past their end of life and not receiving proactive updates anymore.
HPE Helion OpenStack 8 libpcap Not affected
SUSE CaaS Platform 4.0 libpcap Not affected
SUSE CaaS Platform Toolchain 3 libpcap Not affected
SUSE Enterprise Storage 6 libpcap Not affected
SUSE Enterprise Storage 7 libpcap Not affected
SUSE Enterprise Storage 7.1 libpcap Affected
SUSE Linux Enterprise Desktop 12 libpcap Not affected
SUSE Linux Enterprise Desktop 12 SP1 libpcap Not affected
SUSE Linux Enterprise Desktop 12 SP2 libpcap Not affected
SUSE Linux Enterprise Desktop 12 SP3 libpcap Not affected
SUSE Linux Enterprise Desktop 12 SP4 libpcap Not affected
SUSE Linux Enterprise Desktop 15 libpcap Not affected
SUSE Linux Enterprise Desktop 15 SP1 libpcap Not affected
SUSE Linux Enterprise Desktop 15 SP2 libpcap Not affected
SUSE Linux Enterprise Desktop 15 SP3 libpcap Affected
SUSE Linux Enterprise Desktop 15 SP4 libpcap Affected
SUSE Linux Enterprise Desktop 15 SP5 libpcap Affected
SUSE Linux Enterprise Desktop 15 SP6 libpcap Affected
SUSE Linux Enterprise High Performance Computing 12 SP1 libpcap Not affected
SUSE Linux Enterprise High Performance Computing 12 SP2 libpcap Not affected
SUSE Linux Enterprise High Performance Computing 12 SP3 libpcap Not affected
SUSE Linux Enterprise High Performance Computing 12 SP4 libpcap Not affected
SUSE Linux Enterprise High Performance Computing 15 libpcap Not affected
SUSE Linux Enterprise High Performance Computing 15 SP1 libpcap Not affected
SUSE Linux Enterprise High Performance Computing 15 SP1-ESPOS libpcap Not affected
SUSE Linux Enterprise High Performance Computing 15 SP1-LTSS libpcap Not affected
SUSE Linux Enterprise High Performance Computing 15 SP2 libpcap Not affected
SUSE Linux Enterprise High Performance Computing 15 SP2-ESPOS libpcap Not affected
SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS libpcap Not affected
SUSE Linux Enterprise High Performance Computing 15 SP3 libpcap Affected
SUSE Linux Enterprise High Performance Computing 15 SP3-ESPOS libpcap Affected
SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS libpcap Affected
SUSE Linux Enterprise High Performance Computing 15 SP4 libpcap Affected
SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS libpcap In progress
SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS libpcap In progress
SUSE Linux Enterprise High Performance Computing 15-ESPOS libpcap Not affected
SUSE Linux Enterprise High Performance Computing 15-LTSS libpcap Not affected
SUSE Linux Enterprise Micro 5.0 libpcap Not affected
SUSE Linux Enterprise Micro 5.1 libpcap Affected
SUSE Linux Enterprise Micro 5.2 libpcap Affected
SUSE Linux Enterprise Module for Basesystem 15 libpcap Not affected
SUSE Linux Enterprise Module for Basesystem 15 SP1 libpcap Not affected
SUSE Linux Enterprise Module for Basesystem 15 SP2 libpcap Not affected
SUSE Linux Enterprise Module for Basesystem 15 SP3 libpcap Affected
SUSE Linux Enterprise Module for Package Hub 15 SP1 libpcap Not affected
SUSE Linux Enterprise Module for Package Hub 15 SP2 libpcap Not affected
SUSE Linux Enterprise Module for Package Hub 15 SP3 libpcap Affected
SUSE Linux Enterprise Module for Package Hub 15 SP4 libpcap Affected
SUSE Linux Enterprise Module for Package Hub 15 SP5 libpcap Affected
SUSE Linux Enterprise Module for Package Hub 15 SP6 libpcap Affected
SUSE Linux Enterprise Point of Sale 12 SP2-CLIENT libpcap Not affected
SUSE Linux Enterprise Real Time 15 SP2 libpcap Not affected
SUSE Linux Enterprise Real Time 15 SP3 libpcap Affected
SUSE Linux Enterprise Real Time 15 SP4 libpcap Affected
SUSE Linux Enterprise Server 12 libpcap Not affected
SUSE Linux Enterprise Server 12 SP1 libpcap Not affected
SUSE Linux Enterprise Server 12 SP1-LTSS libpcap Not affected
SUSE Linux Enterprise Server 12 SP2 libpcap Not affected
SUSE Linux Enterprise Server 12 SP2-BCL libpcap Not affected
SUSE Linux Enterprise Server 12 SP2-ESPOS libpcap Not affected
SUSE Linux Enterprise Server 12 SP2-LTSS libpcap Not affected
SUSE Linux Enterprise Server 12 SP3 libpcap Not affected
SUSE Linux Enterprise Server 12 SP3-BCL libpcap Not affected
SUSE Linux Enterprise Server 12 SP3-ESPOS libpcap Not affected
SUSE Linux Enterprise Server 12 SP3-LTSS libpcap Not affected
SUSE Linux Enterprise Server 12 SP4 libpcap Not affected
SUSE Linux Enterprise Server 12 SP4-ESPOS libpcap Not affected
SUSE Linux Enterprise Server 12 SP4-LTSS libpcap Not affected
SUSE Linux Enterprise Server 12-LTSS libpcap Not affected
SUSE Linux Enterprise Server 15 libpcap Not affected
SUSE Linux Enterprise Server 15 SP1 libpcap Not affected
SUSE Linux Enterprise Server 15 SP1-BCL libpcap Not affected
SUSE Linux Enterprise Server 15 SP1-LTSS libpcap Not affected
SUSE Linux Enterprise Server 15 SP2 libpcap Not affected
SUSE Linux Enterprise Server 15 SP2-BCL libpcap Not affected
SUSE Linux Enterprise Server 15 SP2-LTSS libpcap Not affected
SUSE Linux Enterprise Server 15 SP3 libpcap Affected
SUSE Linux Enterprise Server 15 SP3-BCL libpcap Affected
SUSE Linux Enterprise Server 15 SP3-LTSS libpcap Affected
SUSE Linux Enterprise Server 15-LTSS libpcap Not affected
SUSE Linux Enterprise Server for Raspberry Pi 12 SP2 libpcap Not affected
SUSE Linux Enterprise Server for SAP Applications 12 libpcap Not affected
SUSE Linux Enterprise Server for SAP Applications 12 SP1 libpcap Not affected
SUSE Linux Enterprise Server for SAP Applications 12 SP2 libpcap Not affected
SUSE Linux Enterprise Server for SAP Applications 12 SP3 libpcap Not affected
SUSE Linux Enterprise Server for SAP Applications 12 SP4 libpcap Not affected
SUSE Linux Enterprise Server for SAP Applications 15 libpcap Not affected
SUSE Linux Enterprise Server for SAP Applications 15 SP1 libpcap Not affected
SUSE Linux Enterprise Server for SAP Applications 15 SP2 libpcap Not affected
SUSE Linux Enterprise Server for SAP Applications 15 SP3 libpcap Affected
SUSE Linux Enterprise Software Development Kit 12 libpcap Not affected
SUSE Linux Enterprise Software Development Kit 12 SP1 libpcap Not affected
SUSE Linux Enterprise Software Development Kit 12 SP2 libpcap Not affected
SUSE Linux Enterprise Software Development Kit 12 SP3 libpcap Not affected
SUSE Linux Enterprise Software Development Kit 12 SP4 libpcap Not affected
SUSE Linux Enterprise Software Development Kit 12 SP5 libpcap Not affected
SUSE Linux Enterprise Workstation Extension 12 libpcap Not affected
SUSE Linux Enterprise Workstation Extension 12 SP1 libpcap Not affected
SUSE Linux Enterprise Workstation Extension 12 SP2 libpcap Not affected
SUSE Linux Enterprise Workstation Extension 12 SP3 libpcap Not affected
SUSE Linux Enterprise Workstation Extension 12 SP4 libpcap Not affected
SUSE Linux Enterprise Workstation Extension 12 SP5 libpcap Not affected
SUSE Manager Proxy 4.0 libpcap Not affected
SUSE Manager Proxy 4.1 libpcap Not affected
SUSE Manager Proxy 4.2 libpcap Affected
SUSE Manager Proxy 4.3 libpcap Affected
SUSE Manager Proxy LTS 4.3 libpcap Affected
SUSE Manager Retail Branch Server 4.0 libpcap Not affected
SUSE Manager Retail Branch Server 4.1 libpcap Not affected
SUSE Manager Retail Branch Server 4.2 libpcap Affected
SUSE Manager Retail Branch Server 4.3 libpcap Affected
SUSE Manager Retail Branch Server LTS 4.3 libpcap Affected
SUSE Manager Server 4.0 libpcap Not affected
SUSE Manager Server 4.1 libpcap Not affected
SUSE Manager Server 4.2 libpcap Affected
SUSE Manager Server 4.3 libpcap Affected
SUSE Manager Server LTS 4.3 libpcap Affected
SUSE OpenStack Cloud 7 libpcap Not affected
SUSE OpenStack Cloud 8 libpcap Not affected
SUSE OpenStack Cloud 9 libpcap Not affected
SUSE OpenStack Cloud Crowbar 8 libpcap Not affected
SUSE OpenStack Cloud Crowbar 9 libpcap Not affected
openSUSE Leap 15.3 libpcap Affected
openSUSE Leap 15.4 libpcap Affected
openSUSE Leap 15.5 libpcap Affected
openSUSE Leap 15.6 libpcap Affected
openSUSE Leap Micro 5.2 libpcap Affected
openSUSE Leap Micro 5.3 libpcap Affected
openSUSE Leap Micro 5.4 libpcap Affected
openSUSE Leap Micro 5.5 libpcap Affected

SUSE Timeline for this CVE

CVE page created: Tue Sep 8 16:37:07 2026
CVE page last modified: Thu Sep 10 17:34:33 2026