Upstream information
Description
The `ecdsa` PyPI package is a pure Python implementation of ECC (Elliptic Curve Cryptography) with support for ECDSA (Elliptic Curve Digital Signature Algorithm), EdDSA (Edwards-curve Digital Signature Algorithm) and ECDH (Elliptic Curve Diffie-Hellman). Prior to version 0.19.2, an issue in the low-level DER parsing functions can cause unexpected exceptions to be raised from the public API functions. `ecdsa.der.remove_octet_string()` accepts truncated DER where the encoded length exceeds the available buffer. For example, an OCTET STRING that declares a length of 4096 bytes but provides only 3 bytes is parsed successfully instead of being rejected. Because of that, a crafted DER input can cause `SigningKey.from_der()` to raise an internal exception (`IndexError: index out of bounds on dimension 1`) rather than cleanly rejecting malformed DER (e.g., raising `UnexpectedDER` or `ValueError`). Applications that parse untrusted DER private keys may crash if they do not handle unexpected exceptions, resulting in a denial of service. Version 0.19.2 patches the issue.SUSE information
Overall state of this security issue: Pending
This issue is currently rated as having moderate severity.
| CVSS detail | CNA (GitHub) | SUSE |
|---|---|---|
| Base Score | 5.3 | 5.3 |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/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 | None | 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 detail | SUSE |
|---|---|
| Base Score | 6.3 |
| Vector | CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N |
| Attack Vector | Network |
| Attack Complexity | Low |
| Attack Requirements | Present |
| 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-2026-10468 |
List of packages in QA
| Product(s) | Package(s) |
|---|---|
| SUSE Linux Enterprise Module for Basesystem 15 SP7 |
|
| SUSE Linux Enterprise Server 15 SP7 |
|
| SUSE Linux Enterprise Desktop 15 SP7 |
|
| SUSE Linux Enterprise Server for SAP Applications 15 SP7 |
|
| SUSE Linux Enterprise High Performance Computing 15 SP7 |
|
| SUSE Linux Enterprise Module for Python 3 15 SP7 |
|
| SUSE Linux Enterprise Server 15 SP7 |
|
| SUSE Linux Enterprise Desktop 15 SP7 |
|
| SUSE Linux Enterprise Server for SAP Applications 15 SP7 |
|
| SUSE Linux Enterprise High Performance Computing 15 SP7 |
|
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 | python-ecdsa | In progress |
| SUSE Linux Enterprise High Performance Computing 12 | python-ecdsa | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP7 | python-ecdsa | In progress |
| SUSE Linux Enterprise Module for Basesystem 15 SP7 | python-ecdsa | In progress |
| SUSE Linux Enterprise Module for Python 3 15 SP7 | python-ecdsa | In progress |
| SUSE Linux Enterprise Server 15 SP7 | python-ecdsa | In progress |
| SUSE Linux Enterprise Server 16.0 | python-ecdsa | In progress |
| SUSE Linux Enterprise Server 16.1 | python-ecdsa | Affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP7 | python-ecdsa | In progress |
| SUSE Linux Enterprise Server for SAP applications 16.0 | python-ecdsa | In progress |
| SUSE Linux Enterprise Server for SAP applications 16.1 | python-ecdsa | Affected |
| openSUSE Leap 15.6 | python-ecdsa | Affected |
| Products under Long Term Service Pack support and receiving important and critical security fixes. | ||
| SUSE Linux Enterprise High Performance Computing 15 SP4 | python-ecdsa | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS | python-ecdsa | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP5 | python-ecdsa | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS | python-ecdsa | Affected |
| SUSE Linux Enterprise Module for Basesystem 15 SP4 | python-ecdsa | Affected |
| SUSE Linux Enterprise Module for Basesystem 15 SP5 | python-ecdsa | Affected |
| SUSE Linux Enterprise Module for Basesystem 15 SP6 | python-ecdsa | Affected |
| SUSE Linux Enterprise Module for Public Cloud 12 | python-ecdsa | Affected |
| SUSE Linux Enterprise Module for Python 3 15 SP4 | python-ecdsa | Affected |
| SUSE Linux Enterprise Module for Python 3 15 SP5 | python-ecdsa | Affected |
| SUSE Linux Enterprise Module for Python 3 15 SP6 | python-ecdsa | Affected |
| SUSE Linux Enterprise Server 12 SP5 | python-ecdsa | Affected |
| SUSE Linux Enterprise Server 15 SP4 | python-ecdsa | Affected |
| SUSE Linux Enterprise Server 15 SP4-LTSS | python-ecdsa | Affected |
| SUSE Linux Enterprise Server 15 SP5 | python-ecdsa | Affected |
| SUSE Linux Enterprise Server 15 SP5-LTSS | python-ecdsa | Affected |
| SUSE Linux Enterprise Server 15 SP6 | python-ecdsa | Affected |
| SUSE Linux Enterprise Server 15 SP6-LTSS | python-ecdsa | Affected |
| SUSE Linux Enterprise Server for SAP Applications 12 SP5 | python-ecdsa | Affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP6 | python-ecdsa | Affected |
| SUSE Manager Proxy 4.3 | python-ecdsa | Affected |
| SUSE Manager Proxy LTS 4.3 | python-ecdsa | Affected |
| SUSE Manager Retail Branch Server 4.3 | python-ecdsa | Affected |
| SUSE Manager Retail Branch Server LTS 4.3 | python-ecdsa | Affected |
| SUSE Manager Server 4.3 | python-ecdsa | Affected |
| SUSE Manager Server LTS 4.3 | python-ecdsa | Affected |
| Products past their end of life and not receiving proactive updates anymore. | ||
| HPE Helion OpenStack 8 | python-ecdsa | Affected |
| SUSE CaaS Platform 3.0 | python-ecdsa | Affected |
| SUSE CaaS Platform 4.0 | python-ecdsa | Affected |
| SUSE Cloud Compute Node for SUSE Linux Enterprise 12 5 | python-ecdsa | Affected |
| SUSE Enterprise Storage 1.0 | python-ecdsa | Affected |
| SUSE Enterprise Storage 2 | python-ecdsa | Affected |
| SUSE Enterprise Storage 4 | python-ecdsa | Affected |
| SUSE Enterprise Storage 6 | python-ecdsa | Affected |
| SUSE Enterprise Storage 7 | python-ecdsa | Affected |
| SUSE Enterprise Storage 7.1 | python-ecdsa | Affected |
| SUSE Linux Enterprise Desktop 15 SP1 | python-ecdsa | Affected |
| SUSE Linux Enterprise Desktop 15 SP2 | python-ecdsa | Affected |
| SUSE Linux Enterprise Desktop 15 SP3 | python-ecdsa | Affected |
| SUSE Linux Enterprise Desktop 15 SP4 | python-ecdsa | Affected |
| SUSE Linux Enterprise Desktop 15 SP5 | python-ecdsa | Affected |
| SUSE Linux Enterprise Desktop 15 SP6 | python-ecdsa | Affected |
| SUSE Linux Enterprise High Performance Computing 15 | python-ecdsa | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP1 | python-ecdsa | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP1-ESPOS | python-ecdsa | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP1-LTSS | python-ecdsa | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP2 | python-ecdsa | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP2-ESPOS | python-ecdsa | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS | python-ecdsa | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP3 | python-ecdsa | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP3-ESPOS | python-ecdsa | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS | python-ecdsa | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS | python-ecdsa | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS | python-ecdsa | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP6 | python-ecdsa | Affected |
| SUSE Linux Enterprise Module for Basesystem 15 SP1 | python-ecdsa | Affected |
| SUSE Linux Enterprise Module for Basesystem 15 SP2 | python-ecdsa | Affected |
| SUSE Linux Enterprise Module for Basesystem 15 SP3 | python-ecdsa | Affected |
| SUSE Linux Enterprise Module for Package Hub 15 | python-ecdsa | Affected |
| SUSE Linux Enterprise Module for Package Hub 15 SP1 | python-ecdsa | Affected |
| SUSE Linux Enterprise Module for Package Hub 15 SP2 | python-ecdsa | Affected |
| SUSE Linux Enterprise Module for Package Hub 15 SP3 | python-ecdsa | Affected |
| SUSE Linux Enterprise Module for Package Hub 15 SP4 | python-ecdsa | Affected |
| SUSE Linux Enterprise Module for Package Hub 15 SP5 | python-ecdsa | Affected |
| SUSE Linux Enterprise Module for Public Cloud 15 | python-ecdsa | Affected |
| SUSE Linux Enterprise Module for Public Cloud 15 SP1 | python-ecdsa | Affected |
| SUSE Linux Enterprise Module for Public Cloud 15 SP2 | python-ecdsa | Affected |
| SUSE Linux Enterprise Real Time 15 SP2 | python-ecdsa | Affected |
| SUSE Linux Enterprise Real Time 15 SP3 | python-ecdsa | Affected |
| SUSE Linux Enterprise Real Time 15 SP4 | python-ecdsa | Affected |
| SUSE Linux Enterprise Server 12 | python-ecdsa | Affected |
| SUSE Linux Enterprise Server 12 SP3 | python-ecdsa | Affected |
| SUSE Linux Enterprise Server 12 SP4 | python-ecdsa | Affected |
| SUSE Linux Enterprise Server 15 | python-ecdsa | Affected |
| SUSE Linux Enterprise Server 15 SP1 | python-ecdsa | Affected |
| SUSE Linux Enterprise Server 15 SP1-BCL | python-ecdsa | Affected |
| SUSE Linux Enterprise Server 15 SP1-LTSS | python-ecdsa | Affected |
| SUSE Linux Enterprise Server 15 SP2 | python-ecdsa | Affected |
| SUSE Linux Enterprise Server 15 SP2-BCL | python-ecdsa | Affected |
| SUSE Linux Enterprise Server 15 SP2-LTSS | python-ecdsa | Affected |
| SUSE Linux Enterprise Server 15 SP3 | python-ecdsa | Affected |
| SUSE Linux Enterprise Server 15 SP3-BCL | python-ecdsa | Affected |
| SUSE Linux Enterprise Server 15 SP3-LTSS | python-ecdsa | Affected |
| SUSE Linux Enterprise Server for SAP Applications 12 | python-ecdsa | Affected |
| SUSE Linux Enterprise Server for SAP Applications 12 SP3 | python-ecdsa | Affected |
| SUSE Linux Enterprise Server for SAP Applications 12 SP4 | python-ecdsa | Affected |
| SUSE Linux Enterprise Server for SAP Applications 15 | python-ecdsa | Affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP1 | python-ecdsa | Affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP2 | python-ecdsa | Affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP3 | python-ecdsa | Affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP4 | python-ecdsa | Affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP5 | python-ecdsa | Affected |
| SUSE Manager Proxy 4.0 | python-ecdsa | Affected |
| SUSE Manager Proxy 4.1 | python-ecdsa | Affected |
| SUSE Manager Proxy 4.2 | python-ecdsa | Affected |
| SUSE Manager Retail Branch Server 4.0 | python-ecdsa | Affected |
| SUSE Manager Retail Branch Server 4.1 | python-ecdsa | Affected |
| SUSE Manager Retail Branch Server 4.2 | python-ecdsa | Affected |
| SUSE Manager Server 3.2 | python-ecdsa | Affected |
| SUSE Manager Server 4.0 | python-ecdsa | Affected |
| SUSE Manager Server 4.1 | python-ecdsa | Affected |
| SUSE Manager Server 4.2 | python-ecdsa | Affected |
| SUSE OpenStack Cloud 7 | python-ecdsa | Affected |
| SUSE OpenStack Cloud 8 | python-ecdsa | Affected |
| SUSE OpenStack Cloud 9 | python-ecdsa | Affected |
| SUSE OpenStack Cloud Crowbar 8 | python-ecdsa | Affected |
| SUSE OpenStack Cloud Crowbar 9 | python-ecdsa | Affected |
| openSUSE Leap 15.3 | python-ecdsa | Affected |
| openSUSE Leap 15.4 | python-ecdsa | Affected |
| openSUSE Leap 15.5 | python-ecdsa | Affected |
SUSE Timeline for this CVE
CVE page created: Sat Mar 28 02:28:50 2026CVE page last modified: Wed Apr 1 01:47:53 2026