Upstream information
Description
A security flaw has been discovered in mwiede jsch up to 2.28.5. Affected is the function getRevokedKeys of the file src/main/java/com/jcraft/jsch/KnownHosts.java. Performing a manipulation of the argument known_hosts results in improper check for certificate revocation. The attack is possible to be carried out remotely. The attack is considered to have high complexity. The exploitability is told to be difficult. The exploit has been released to the public and may be used for attacks. Upgrading to version 2.28.6 is able to address this issue. The patch is named 194a2f76a5c0f1c3f778565be3fd66bcafc42d23. You should upgrade the affected component.SUSE information
Overall state of this security issue: Pending
This issue is currently rated as having important severity.
| CVSS detail | CNA (VulDB) |
|---|---|
| Base Score | 2.6 |
| Vector | AV:N/AC:H/Au:N/C:N/I:P/A:N |
| Access Vector | Network |
| Access Complexity | High |
| Authentication | None |
| Confidentiality Impact | None |
| Integrity Impact | Partial |
| Availability Impact | None |
| CVSS detail | CNA (VulDB) | SUSE |
|---|---|---|
| Base Score | 3.7 | 7.4 |
| Vector | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N |
| Attack Vector | Network | Network |
| Attack Complexity | High | High |
| Privileges Required | None | None |
| User Interaction | None | None |
| Scope | Unchanged | Unchanged |
| Confidentiality Impact | None | High |
| Integrity Impact | Low | High |
| Availability Impact | None | None |
| CVSSv3 Version | 3.1 | 3.1 |
| CVSS detail | CNA (VulDB) | SUSE |
|---|---|---|
| Base Score | 2.9 | 9 |
| Vector | CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P/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:H/AT:P/PR:N/UI:N/VC:N/VI:H/VA:N/SC:H/SI:H/SA:N |
| Attack Vector | Network | Network |
| Attack Complexity | High | High |
| Attack Requirements | None | Present |
| Privileges Required | None | None |
| User Interaction | None | None |
| Vulnerable System Confidentiality Impact | None | None |
| Vulnerable System Integrity Impact | Low | High |
| Vulnerable System Availability Impact | None | None |
| Subsequent System Confidentiality Impact | None | High |
| Subsequent System Integrity Impact | None | High |
| 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 Desktop 15 SP7 | jsch | Affected |
| SUSE Linux Enterprise Module for Development Tools 15 SP7 | jsch | Affected |
| SUSE Linux Enterprise Server 15 SP7 | jsch | Affected |
| SUSE Linux Enterprise Server 16.0 | jsch | Affected |
| SUSE Linux Enterprise Server 16.1 | jsch | Affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP7 | jsch | Affected |
| SUSE Linux Enterprise Server for SAP applications 16.0 | jsch | Affected |
| SUSE Linux Enterprise Server for SAP applications 16.1 | jsch | Affected |
| openSUSE Leap 16.0 | jsch | Affected |
| Products under Long Term Service Pack support and receiving important and critical security fixes. | ||
| SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS | jsch | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP5 | jsch | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS | jsch | Affected |
| SUSE Linux Enterprise Module for Development Tools 15 SP4 | jsch | Affected |
| SUSE Linux Enterprise Module for Development Tools 15 SP5 | jsch | Affected |
| SUSE Linux Enterprise Module for Development Tools 15 SP6 | jsch | Affected |
| SUSE Linux Enterprise Server 15 SP4 | jsch | Affected |
| SUSE Linux Enterprise Server 15 SP4-LTSS | jsch | Affected |
| SUSE Linux Enterprise Server 15 SP5 | jsch | Affected |
| SUSE Linux Enterprise Server 15 SP5-LTSS | jsch | Affected |
| SUSE Linux Enterprise Server 15 SP6 | jsch | Affected |
| SUSE Linux Enterprise Server 15 SP6-LTSS | jsch | Affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP4 | jsch | Affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP5 | jsch | Affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP6 | jsch | Affected |
| SUSE Manager Server Module 4.3 | jsch | Affected |
| Products past their end of life and not receiving proactive updates anymore. | ||
| SUSE Enterprise Storage 7 | jsch | Affected |
| SUSE Enterprise Storage 7.1 | jsch | Affected |
| SUSE Linux Enterprise Desktop 15 SP2 | jsch | Affected |
| SUSE Linux Enterprise Desktop 15 SP3 | jsch | Affected |
| SUSE Linux Enterprise Desktop 15 SP4 | jsch | Affected |
| SUSE Linux Enterprise Desktop 15 SP5 | jsch | Affected |
| SUSE Linux Enterprise Desktop 15 SP6 | jsch | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP2 | jsch | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP2-ESPOS | jsch | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS | jsch | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP3 | jsch | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP3-ESPOS | jsch | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS | jsch | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP4 | jsch | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS | jsch | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS | jsch | Affected |
| SUSE Linux Enterprise Module for Development Tools 15 SP2 | jsch | Affected |
| SUSE Linux Enterprise Module for Development Tools 15 SP3 | jsch | Affected |
| SUSE Linux Enterprise Real Time 15 SP2 | jsch | Affected |
| SUSE Linux Enterprise Real Time 15 SP3 | jsch | Affected |
| SUSE Linux Enterprise Real Time 15 SP4 | jsch | Affected |
| SUSE Linux Enterprise Server 15 SP2 | jsch | Affected |
| SUSE Linux Enterprise Server 15 SP2-BCL | jsch | Affected |
| SUSE Linux Enterprise Server 15 SP2-LTSS | jsch | Affected |
| SUSE Linux Enterprise Server 15 SP3 | jsch | Affected |
| SUSE Linux Enterprise Server 15 SP3-BCL | jsch | Affected |
| SUSE Linux Enterprise Server 15 SP3-LTSS | jsch | Affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP2 | jsch | Affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP3 | jsch | Affected |
| SUSE Manager Proxy 4.1 | jsch | Affected |
| SUSE Manager Proxy 4.2 | jsch | Affected |
| SUSE Manager Proxy 4.3 | jsch | Affected |
| SUSE Manager Retail Branch Server 4.1 | jsch | Affected |
| SUSE Manager Retail Branch Server 4.2 | jsch | Affected |
| SUSE Manager Retail Branch Server 4.3 | jsch | Affected |
| SUSE Manager Server 4.1 | jsch | Affected |
| SUSE Manager Server 4.2 | jsch | Affected |
| SUSE Manager Server 4.3 | jsch | Affected |
| SUSE Manager Server LTS 4.3 | jsch | Affected |
| openSUSE Leap 15.3 | jsch | Affected |
| openSUSE Leap 15.4 | jsch | Affected |
| openSUSE Leap 15.5 | jsch | Affected |
| openSUSE Leap 15.6 | jsch | Affected |
| Container Status | ||
| suse/manager/5.0/x86_64/server suse/multi-linux-manager/5.1/x86_64/server suse/multi-linux-manager/5.2/x86_64/server | jsch | Affected |
SUSE Timeline for this CVE
CVE page created: Wed Sep 9 16:48:29 2026CVE page last modified: Wed Sep 9 21:04:01 2026