Upstream information
Description
In nghttp2 before version 1.41.0, the overly large HTTP/2 SETTINGS frame payload causes denial of service. The proof of concept attack involves a malicious client constructing a SETTINGS frame with a length of 14,400 bytes (2400 individual settings entries) over and over again. The attack causes the CPU to spike at 100%. nghttp2 v1.41.0 fixes this vulnerability. There is a workaround to this vulnerability. Implement nghttp2_on_frame_recv_callback callback, and if received frame is SETTINGS frame and the number of settings entries are large (e.g., > 32), then drop the connection.SUSE information
Overall state of this security issue: Resolved
This issue is currently rated as having important severity.
| National Vulnerability Database | |
|---|---|
| Base Score | 5 |
| Vector | AV:N/AC:L/Au:N/C:N/I:N/A:P |
| Access Vector | Network |
| Access Complexity | Low |
| Authentication | None |
| Confidentiality Impact | None |
| Integrity Impact | None |
| Availability Impact | Partial |
| National Vulnerability Database | SUSE | |
|---|---|---|
| Base Score | 7.5 | 7.5 |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| Access Vector | Network | Network |
| Access Complexity | Low | Low |
| Privileges Required | None | None |
| User Interaction | None | None |
| Scope | Unchanged | Unchanged |
| Confidentiality Impact | None | None |
| Integrity Impact | None | None |
| Availability Impact | High | High |
| CVSSv3 Version | 3.1 | 3.1 |
- SUSE-SU-2020:1568-1, published Tue Jun 9 07:16:46 MDT 2020
- SUSE-SU-2020:1575-1, published Tue Jun 9 10:15:30 MDT 2020
- SUSE-SU-2020:1576-1, published Tue Jun 9 10:13:21 MDT 2020
- SUSE-SU-2020:1606-1, published Thu Jun 11 07:14:24 MDT 2020
- SUSE-SU-2020:2800-1, published Wed Sep 30 07:17:27 MDT 2020
- openSUSE-SU-2020:0802-1, published Sat, 13 Jun 2020 09:37:56 +0200 (CEST)
List of released packages
| Product(s) | Fixed package version(s) | References |
|---|---|---|
| SUSE Linux Enterprise High Performance Computing 15-ESPOS SUSE Linux Enterprise High Performance Computing 15-LTSS |
| Patchnames: SUSE-SLE-Product-HPC-15-2020-1568 SUSE-SLE-Product-HPC-15-2020-1576 |
| SUSE Linux Enterprise Module for Web Scripting 12 |
| Patchnames: SUSE-SLE-Module-Web-Scripting-12-2020-1575 SUSE-SLE-Module-Web-Scripting-12-2020-1606 |
| SUSE Linux Enterprise Module for Web Scripting 15 SP1 |
| Patchnames: SUSE-SLE-Module-Web-Scripting-15-SP1-2020-1568 SUSE-SLE-Module-Web-Scripting-15-SP1-2020-1576 |
| SUSE Linux Enterprise Module for Web Scripting 15 SP2 |
| Patchnames: SUSE-SLE-Module-Web-Scripting-15-SP2-2020-1568 SUSE-SLE-Module-Web-Scripting-15-SP2-2020-2800 |
| SUSE Linux Enterprise Server 15-LTSS |
| Patchnames: SUSE-SLE-Product-SLES-15-2020-1568 SUSE-SLE-Product-SLES-15-2020-1576 |
| SUSE Linux Enterprise Server for SAP Applications 15 |
| Patchnames: SUSE-SLE-Product-SLES_SAP-15-2020-1568 SUSE-SLE-Product-SLES_SAP-15-2020-1576 |
| openSUSE Leap 15.1 |
| Patchnames: openSUSE-2020-802 |
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 |
|---|---|---|
| SUSE Enterprise Storage 4 | nodejs4 | Not affected |
| SUSE Enterprise Storage 4 | nodejs6 | Not affected |
| SUSE Linux Enterprise 12 Module for Web and Scripting | nodejs10 | Released |
| SUSE Linux Enterprise 12 Module for Web and Scripting | nodejs12 | Released |
| SUSE Linux Enterprise 12 Module for Web and Scripting | nodejs4 | Not affected |
| SUSE Linux Enterprise 12 Module for Web and Scripting | nodejs6 | Not affected |
| SUSE Linux Enterprise 15 Module for Web and Scripting | nodejs10 | Affected |
| SUSE Linux Enterprise 15 Module for Web and Scripting | nodejs8 | Not affected |
| SUSE Linux Enterprise 15-SP1 Module for Web and Scripting | nodejs10 | Released |
| SUSE Linux Enterprise 15-SP1 Module for Web and Scripting | nodejs8 | Released |
| SUSE Linux Enterprise 15-SP2 Module for Web and Scripting | nodejs10 | Released |
| SUSE Linux Enterprise 15-SP2 Module for Web and Scripting | nodejs12 | Already fixed |
| SUSE Linux Enterprise 15-SP2 Module for Web and Scripting | nodejs8 | Released |
| SUSE Linux Enterprise High Performance Computing 15 LTSS | nodejs10 | Released |
| SUSE Linux Enterprise High Performance Computing 15 LTSS | nodejs8 | Released |
| SUSE Linux Enterprise Server 15 LTSS | nodejs10 | Released |
| SUSE Linux Enterprise Server 15 LTSS | nodejs8 | Released |
| SUSE Linux Enterprise Server ESPOS 15 | nodejs10 | Released |
| SUSE Linux Enterprise Server ESPOS 15 | nodejs8 | Released |
| SUSE OpenStack Cloud 7 | nodejs6 | Not affected |
| SUSE OpenStack Cloud Crowbar 8 | nodejs6 | Not affected |
| SUSE OpenStack Cloud Crowbar 9 | nodejs6 | Not affected |
| SUSE Studio Onsite | nodejs | Not affected |
