Upstream information
Description
Cosign is a project under the sigstore organization which aims to make signatures invisible infrastructure. In versions prior to 1.12.0 a number of vulnerabilities have been found in cosign verify-blob, where Cosign would successfully verify an artifact when verification should have failed. First a cosign bundle can be crafted to successfully verify a blob even if the embedded rekorBundle does not reference the given signature. Second, when providing identity flags, the email and issuer of a certificate is not checked when verifying a Rekor bundle, and the GitHub Actions identity is never checked. Third, providing an invalid Rekor bundle without the experimental flag results in a successful verification. And fourth an invalid transparency log entry will result in immediate success for verification. Details and examples of these issues can be seen in the GHSA-8gw7-4j42-w388 advisory linked. Users are advised to upgrade to 1.12.0. There are no known workarounds for these issues.SUSE information
Overall state of this security issue: Resolved
This issue is currently rated as having moderate severity.
| National Vulnerability Database | |
|---|---|
| Base Score | 5.5 |
| Vector | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N |
| Attack Vector | Local |
| Attack Complexity | Low |
| Privileges Required | Low |
| User Interaction | None |
| Scope | Unchanged |
| Confidentiality Impact | None |
| Integrity Impact | High |
| Availability Impact | None |
| CVSSv3 Version | 3.1 |
SUSE Security Advisories:
- SUSE-SU-2022:3486-1, published Sat Oct 1 16:19:31 UTC 2022
List of released packages
| Product(s) | Fixed package version(s) | References |
|---|---|---|
| SUSE Linux Enterprise Desktop 15 SP4 SUSE Linux Enterprise High Performance Computing 15 SP4 SUSE Linux Enterprise Module for Basesystem 15 SP4 SUSE Linux Enterprise Server 15 SP4 SUSE Linux Enterprise Server for SAP Applications 15 SP4 SUSE Manager Proxy 4.3 SUSE Manager Retail Branch Server 4.3 SUSE Manager Server 4.3 |
| Patchnames: SUSE-SLE-Module-Basesystem-15-SP4-2022-3486 |
| SUSE Linux Enterprise Desktop 15 SP5 SUSE Linux Enterprise High Performance Computing 15 SP5 SUSE Linux Enterprise Module for Basesystem 15 SP5 SUSE Linux Enterprise Server 15 SP5 SUSE Linux Enterprise Server for SAP Applications 15 SP5 |
| Patchnames: SUSE Linux Enterprise Module for Basesystem 15 SP5 GA cosign-1.12.0-150400.3.6.1 |
| SUSE Linux Enterprise Desktop 15 SP6 SUSE Linux Enterprise High Performance Computing 15 SP6 SUSE Linux Enterprise Module for Basesystem 15 SP6 SUSE Linux Enterprise Server 15 SP6 SUSE Linux Enterprise Server for SAP Applications 15 SP6 |
| Patchnames: SUSE Linux Enterprise Module for Basesystem 15 SP6 GA cosign-2.2.3-150400.3.17.1 |
| openSUSE Leap 15.4 |
| Patchnames: openSUSE-SLE-15.4-2022-3486 |
| openSUSE Tumbleweed |
| Patchnames: openSUSE Tumbleweed GA cosign-1.12.0-1.1 |
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 SP5 | cosign | Released |
| SUSE Linux Enterprise Desktop 15 SP6 | cosign | Released |
| SUSE Linux Enterprise High Performance Computing 15 SP5 | cosign | Released |
| SUSE Linux Enterprise High Performance Computing 15 SP6 | cosign | Released |
| SUSE Linux Enterprise Module for Basesystem 15 SP5 | cosign | Released |
| SUSE Linux Enterprise Module for Basesystem 15 SP6 | cosign | Released |
| SUSE Linux Enterprise Server 15 SP5 | cosign | Released |
| SUSE Linux Enterprise Server 15 SP6 | cosign | Released |
| SUSE Linux Enterprise Server for SAP Applications 15 SP5 | cosign | Released |
| SUSE Linux Enterprise Server for SAP Applications 15 SP6 | cosign | Released |
| SUSE Manager Proxy 4.3 | cosign | Released |
| SUSE Manager Retail Branch Server 4.3 | cosign | Released |
| SUSE Manager Server 4.3 | cosign | Released |
| Products under Long Term Service Pack support and receiving important and critical security fixes. | ||
| SUSE Linux Enterprise Desktop 15 SP4 | cosign | Released |
| SUSE Linux Enterprise High Performance Computing 15 SP4 | cosign | Released |
| SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS | cosign | Already fixed |
| SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS | cosign | Already fixed |
| SUSE Linux Enterprise Module for Basesystem 15 SP4 | cosign | Released |
| SUSE Linux Enterprise Server 15 SP4 | cosign | Released |
| SUSE Linux Enterprise Server 15 SP4-LTSS | cosign | Already fixed |
| SUSE Linux Enterprise Server for SAP Applications 15 SP4 | cosign | Released |
| Products past their end of life and not receiving proactive updates anymore. | ||
| SUSE Linux Enterprise Real Time 15 SP4 | cosign | Already fixed |
| openSUSE Leap 15.4 | cosign | Released |
SUSE Timeline for this CVE
CVE page created: Thu Sep 15 06:00:38 2022CVE page last modified: Wed Apr 24 13:01:39 2024