Upstream information
Description
The tcp_cwnd_reduction function in net/ipv4/tcp_input.c in the Linux kernel before 4.3.5 allows remote attackers to cause a denial of service (divide-by-zero error and system crash) via crafted TCP traffic.SUSE information
Overall state of this security issue: Does not affect SUSE products
This issue is currently rated as having moderate severity.
| National Vulnerability Database | SUSE | |
|---|---|---|
| Base Score | 7.8 | 5.4 |
| Vector | AV:N/AC:L/Au:N/C:N/I:N/A:C | AV:N/AC:H/Au:N/C:N/I:N/A:C |
| Access Vector | Network | Network |
| Access Complexity | Low | High |
| Authentication | None | None |
| Confidentiality Impact | None | None |
| Integrity Impact | None | None |
| Availability Impact | Complete | Complete |
| National Vulnerability Database | |
|---|---|
| Base Score | 7.5 |
| Vector | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| Access Vector | Network |
| Access Complexity | Low |
| Privileges Required | None |
| User Interaction | None |
| Scope | Unchanged |
| Confidentiality Impact | None |
| Integrity Impact | None |
| Availability Impact | High |
| CVSSv3 Version | 3 |
Note from the SUSE Security Team
This bug only exists in Linux 4.3, so older kernels are not affected. SUSE Linux Enterprise 12 and older are not affected. SUSE Bugzilla entry: 963761 [RESOLVED / INVALID] No SUSE Security Announcements cross referenced.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Please note that this evaluation state might be work in progress, incomplete or outdated.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.
| Product(s) | Source package | State |
|---|---|---|
| Carwos 1 | kernel-source-rt | Analysis |
| HPE Helion OpenStack 8 | kernel-default | Analysis |
| HPE Helion OpenStack 8 | kernel-source | Analysis |
| HPE Helion OpenStack 8 | kernel-source-azure | Analysis |
| SLES for SAP Applications | kernel-default | Analysis |
| SLES for SAP Applications | kernel-source | Analysis |
| SUSE CaaS Platform 4.0 | kernel-default | Analysis |
| SUSE CaaS Platform 4.0 | kernel-source | Analysis |
| SUSE CaaS Platform 4.0 | kernel-source-azure | Analysis |
| SUSE Enterprise Storage 5 | kernel-default | Analysis |
| SUSE Enterprise Storage 5 | kernel-source | Analysis |
| SUSE Enterprise Storage 5 | kernel-source-azure | Analysis |
| SUSE Enterprise Storage 6 | kernel-default | Analysis |
| SUSE Enterprise Storage 6 | kernel-source | Analysis |
| SUSE Enterprise Storage 6 | kernel-source-azure | Analysis |
| SUSE Linux Enterprise 15 Module for Basesystem | kernel-default | Analysis |
| SUSE Linux Enterprise 15 Module for Basesystem | kernel-source | Analysis |
| SUSE Linux Enterprise 15 Module for Development Tools | kernel-default | Analysis |
| SUSE Linux Enterprise 15 Module for Development Tools | kernel-source | Analysis |
| SUSE Linux Enterprise 15 Module for Public Cloud | kernel-source-azure | Analysis |
| SUSE Linux Enterprise 15-SP1 Module for Basesystem | kernel-default | Analysis |
| SUSE Linux Enterprise 15-SP1 Module for Basesystem | kernel-source | Analysis |
| SUSE Linux Enterprise 15-SP1 Module for Development Tools | kernel-default | Analysis |
| SUSE Linux Enterprise 15-SP1 Module for Development Tools | kernel-source | Analysis |
| SUSE Linux Enterprise 15-SP1 Module for Public Cloud | kernel-source-azure | Analysis |
| SUSE Linux Enterprise 15-SP2 Module for Basesystem | kernel-default | Analysis |
| SUSE Linux Enterprise 15-SP2 Module for Basesystem | kernel-source | Analysis |
| SUSE Linux Enterprise 15-SP2 Module for Development Tools | kernel-default | Analysis |
| SUSE Linux Enterprise 15-SP2 Module for Development Tools | kernel-source | Analysis |
| SUSE Linux Enterprise 15-SP2 Module for Public Cloud | kernel-source-azure | Analysis |
| SUSE Linux Enterprise Desktop 11 SP2 | kernel-default | Not affected |
| SUSE Linux Enterprise Desktop 11 SP2 | kernel-source | Not affected |
| SUSE Linux Enterprise Desktop 11 SP3 | kernel-default | Not affected |
| SUSE Linux Enterprise Desktop 11 SP3 | kernel-source | Not affected |
| SUSE Linux Enterprise Desktop 11 SP4 | kernel-default | Not affected |
| SUSE Linux Enterprise Desktop 11 SP4 | kernel-source | Not affected |
| SUSE Linux Enterprise Desktop 12 | kernel-default | Not affected |
| SUSE Linux Enterprise Desktop 12 | kernel-source | Not affected |
| SUSE Linux Enterprise Desktop 12 SP1 | kernel-default | Not affected |
| SUSE Linux Enterprise Desktop 12 SP1 | kernel-source | Not affected |
| SUSE Linux Enterprise Desktop 12 SP3 | kernel-default | Analysis |
| SUSE Linux Enterprise Desktop 12 SP3 | kernel-source | Analysis |
| SUSE Linux Enterprise Desktop 12 SP4 | kernel-default | Analysis |
| SUSE Linux Enterprise Desktop 12 SP4 | kernel-source | Analysis |
| SUSE Linux Enterprise High Performance Computing 12 SP4 | kernel-default | Analysis |
| SUSE Linux Enterprise High Performance Computing 12 SP4 | kernel-source | Analysis |
| SUSE Linux Enterprise High Performance Computing 12 SP5 | kernel-default | Analysis |
| SUSE Linux Enterprise High Performance Computing 12 SP5 | kernel-source | Analysis |
| SUSE Linux Enterprise High Performance Computing 12 SP5 | kernel-source-azure | Analysis |
| SUSE Linux Enterprise High Performance Computing 15 LTSS | kernel-default | Analysis |
| SUSE Linux Enterprise High Performance Computing 15 LTSS | kernel-source | Analysis |
| SUSE Linux Enterprise High Performance Computing 15 SP1 LTSS | kernel-default | Analysis |
| SUSE Linux Enterprise High Performance Computing 15 SP1 LTSS | kernel-source | Analysis |
| SUSE Linux Enterprise High Performance Computing 15 SP1 LTSS | kernel-source-azure | Analysis |
| SUSE Linux Enterprise Point of Service 11 SP3 | kernel-default | Analysis |
| SUSE Linux Enterprise Point of Service 11 SP3 | kernel-source | Analysis |
| SUSE Linux Enterprise Point of Service Image Server 12 | kernel-default | Analysis |
| SUSE Linux Enterprise Point of Service Image Server 12 | kernel-source | Analysis |
| SUSE Linux Enterprise Real Time 12 SP4 | kernel-source-rt | Analysis |
| SUSE Linux Enterprise Real Time 12 SP5 | kernel-source-rt | Analysis |
| SUSE Linux Enterprise Server 11 SP2 | kernel-default | Not affected |
| SUSE Linux Enterprise Server 11 SP2 | kernel-source | Not affected |
| SUSE Linux Enterprise Server 11 SP2 LTSS | kernel-default | Not affected |
| SUSE Linux Enterprise Server 11 SP2 LTSS | kernel-source | Not affected |
| SUSE Linux Enterprise Server 11 SP2 for VMware | kernel-default | Not affected |
| SUSE Linux Enterprise Server 11 SP2 for VMware | kernel-source | Not affected |
| SUSE Linux Enterprise Server 11 SP3 | kernel-default | Not affected |
| SUSE Linux Enterprise Server 11 SP3 | kernel-source | Not affected |
| SUSE Linux Enterprise Server 11 SP3 LTSS | kernel-default | Analysis |
| SUSE Linux Enterprise Server 11 SP3 LTSS | kernel-source | Analysis |
| SUSE Linux Enterprise Server 11 SP3 for VMware | kernel-default | Not affected |
| SUSE Linux Enterprise Server 11 SP3 for VMware | kernel-source | Not affected |
| SUSE Linux Enterprise Server 11 SP4 | kernel-default | Analysis |
| SUSE Linux Enterprise Server 11 SP4 | kernel-source | Analysis |
| SUSE Linux Enterprise Server 11 SP4 LTSS | kernel-default | Analysis |
| SUSE Linux Enterprise Server 11 SP4 LTSS | kernel-source | Analysis |
| SUSE Linux Enterprise Server 12 | kernel-default | Not affected |
| SUSE Linux Enterprise Server 12 | kernel-source | Not affected |
| SUSE Linux Enterprise Server 12 LTSS | kernel-default | Analysis |
| SUSE Linux Enterprise Server 12 LTSS | kernel-source | Analysis |
| SUSE Linux Enterprise Server 12 SP1 | kernel-default | Not affected |
| SUSE Linux Enterprise Server 12 SP1 | kernel-source | Not affected |
| SUSE Linux Enterprise Server 12 SP1 LTSS | kernel-default | Analysis |
| SUSE Linux Enterprise Server 12 SP1 LTSS | kernel-source | Analysis |
| SUSE Linux Enterprise Server 12 SP2 BCL | kernel-default | Analysis |
| SUSE Linux Enterprise Server 12 SP2 BCL | kernel-source | Analysis |
| SUSE Linux Enterprise Server 12 SP2 ESPOS | kernel-default | Analysis |
| SUSE Linux Enterprise Server 12 SP2 ESPOS | kernel-source | Analysis |
| SUSE Linux Enterprise Server 12 SP2 LTSS | kernel-default | Analysis |
| SUSE Linux Enterprise Server 12 SP2 LTSS | kernel-source | Analysis |
| SUSE Linux Enterprise Server 12 SP3 | kernel-default | Analysis |
| SUSE Linux Enterprise Server 12 SP3 | kernel-source | Analysis |
| SUSE Linux Enterprise Server 12 SP3 BCL | kernel-default | Analysis |
| SUSE Linux Enterprise Server 12 SP3 BCL | kernel-source | Analysis |
| SUSE Linux Enterprise Server 12 SP3 BCL | kernel-source-azure | Analysis |
| SUSE Linux Enterprise Server 12 SP3 ESPOS | kernel-default | Analysis |
| SUSE Linux Enterprise Server 12 SP3 ESPOS | kernel-source | Analysis |
| SUSE Linux Enterprise Server 12 SP3 ESPOS | kernel-source-azure | Analysis |
| SUSE Linux Enterprise Server 12 SP3 LTSS | kernel-default | Analysis |
| SUSE Linux Enterprise Server 12 SP3 LTSS | kernel-source | Analysis |
| SUSE Linux Enterprise Server 12 SP3 LTSS | kernel-source-azure | Analysis |
| SUSE Linux Enterprise Server 12 SP4 | kernel-default | Analysis |
| SUSE Linux Enterprise Server 12 SP4 | kernel-source | Analysis |
| SUSE Linux Enterprise Server 12 SP4 ESPOS | kernel-default | Analysis |
| SUSE Linux Enterprise Server 12 SP4 ESPOS | kernel-source | Analysis |
| SUSE Linux Enterprise Server 12 SP4 ESPOS | kernel-source-azure | Analysis |
| SUSE Linux Enterprise Server 12 SP4 LTSS | kernel-default | Analysis |
| SUSE Linux Enterprise Server 12 SP4 LTSS | kernel-source | Analysis |
| SUSE Linux Enterprise Server 12 SP4 LTSS | kernel-source-azure | Analysis |
| SUSE Linux Enterprise Server 12 SP5 | kernel-default | Analysis |
| SUSE Linux Enterprise Server 12 SP5 | kernel-source | Analysis |
| SUSE Linux Enterprise Server 12 SP5 | kernel-source-azure | Analysis |
| SUSE Linux Enterprise Server 15 LTSS | kernel-default | Analysis |
| SUSE Linux Enterprise Server 15 LTSS | kernel-source | Analysis |
| SUSE Linux Enterprise Server 15 SP1 Business Critical Linux | kernel-default | Analysis |
| SUSE Linux Enterprise Server 15 SP1 Business Critical Linux | kernel-source | Analysis |
| SUSE Linux Enterprise Server 15 SP1 Business Critical Linux | kernel-source-azure | Analysis |
| SUSE Linux Enterprise Server 15 SP1 LTSS | kernel-default | Analysis |
| SUSE Linux Enterprise Server 15 SP1 LTSS | kernel-source | Analysis |
| SUSE Linux Enterprise Server 15 SP1 LTSS | kernel-source-azure | Analysis |
| SUSE Linux Enterprise Server ESPOS 15 | kernel-default | Analysis |
| SUSE Linux Enterprise Server ESPOS 15 | kernel-source | Analysis |
| SUSE Linux Enterprise Server for SAP Applications 12 | kernel-default | Analysis |
| SUSE Linux Enterprise Server for SAP Applications 12 | kernel-source | Analysis |
| SUSE Linux Enterprise Server for SAP Applications 12 SP2 | kernel-default | Analysis |
| SUSE Linux Enterprise Server for SAP Applications 12 SP2 | kernel-source | Analysis |
| SUSE Linux Enterprise Server for SAP Applications 12 SP3 | kernel-default | Analysis |
| SUSE Linux Enterprise Server for SAP Applications 12 SP3 | kernel-source | Analysis |
| SUSE Linux Enterprise Server for SAP Applications 12 SP3 | kernel-source-azure | Analysis |
| SUSE Linux Enterprise Server for SAP Applications 12 SP4 | kernel-default | Analysis |
| SUSE Linux Enterprise Server for SAP Applications 12 SP4 | kernel-source | Analysis |
| SUSE Linux Enterprise Server for SAP Applications 12 SP4 | kernel-source-azure | Analysis |
| SUSE Linux Enterprise Server for SAP Applications 12 SP5 | kernel-default | Analysis |
| SUSE Linux Enterprise Server for SAP Applications 12 SP5 | kernel-source | Analysis |
| SUSE Linux Enterprise Server for SAP Applications 12 SP5 | kernel-source-azure | Analysis |
| SUSE Linux Enterprise Server for SAP Applications 15 | kernel-default | Analysis |
| SUSE Linux Enterprise Server for SAP Applications 15 | kernel-source | Analysis |
| SUSE Linux Enterprise Server for SAP Applications 15 SP1 | kernel-default | Analysis |
| SUSE Linux Enterprise Server for SAP Applications 15 SP1 | kernel-source | Analysis |
| SUSE Linux Enterprise Server for SAP Applications 15 SP1 | kernel-source-azure | Analysis |
| SUSE Manager Proxy 4.0 | kernel-default | Analysis |
| SUSE Manager Proxy 4.0 | kernel-source | Analysis |
| SUSE Manager Proxy 4.0 | kernel-source-azure | Analysis |
| SUSE Manager Retail Branch Server 4.0 | kernel-default | Analysis |
| SUSE Manager Retail Branch Server 4.0 | kernel-source | Analysis |
| SUSE Manager Retail Branch Server 4.0 | kernel-source-azure | Analysis |
| SUSE Manager Server 4.0 | kernel-default | Analysis |
| SUSE Manager Server 4.0 | kernel-source | Analysis |
| SUSE Manager Server 4.0 | kernel-source-azure | Analysis |
| SUSE OpenStack Cloud 7 | kernel-default | Analysis |
| SUSE OpenStack Cloud 7 | kernel-source | Analysis |
| SUSE OpenStack Cloud 8 | kernel-default | Analysis |
| SUSE OpenStack Cloud 8 | kernel-source | Analysis |
| SUSE OpenStack Cloud 8 | kernel-source-azure | Analysis |
| SUSE OpenStack Cloud 9 | kernel-default | Analysis |
| SUSE OpenStack Cloud 9 | kernel-source | Analysis |
| SUSE OpenStack Cloud 9 | kernel-source-azure | Analysis |
| SUSE OpenStack Cloud Crowbar 8 | kernel-default | Analysis |
| SUSE OpenStack Cloud Crowbar 8 | kernel-source | Analysis |
| SUSE OpenStack Cloud Crowbar 8 | kernel-source-azure | Analysis |
| SUSE OpenStack Cloud Crowbar 9 | kernel-default | Analysis |
| SUSE OpenStack Cloud Crowbar 9 | kernel-source | Analysis |
| SUSE OpenStack Cloud Crowbar 9 | kernel-source-azure | Analysis |
| SUSE Real Time Module | kernel-source-rt | Analysis |
