Upstream information
Description
Cosign provides code signing and transparency for containers and binaries. Prior to version 2.2.4, a remote image with a malicious attachment can cause denial of service of the host machine running Cosign. This can impact other services on the machine that rely on having memory available such as a Redis database which can result in data loss. It can also impact the availability of other services on the machine that will not be available for the duration of the machine denial. The root cause of this issue is that Cosign reads the attachment from a remote image entirely into memory without checking the size of the attachment first. As such, a large attachment can make Cosign read a large attachment into memory; If the attachments size is larger than the machine has memory available, the machine will be denied of service. The Go runtime will make a SigKill after a few seconds of system-wide denial. This issue can allow a supply-chain escalation from a compromised registry to the Cosign user: If an attacher has compromised a registry or the account of an image vendor, they can include a malicious attachment and hurt the image consumer. Version 2.2.4 contains a patch for the vulnerability.SUSE information
Overall state of this security issue: Resolved
This issue is currently rated as having moderate severity.
| SUSE | |
|---|---|
| Base Score | 4.2 |
| Vector | CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:N/I:N/A:H |
| Attack Vector | Network |
| Attack Complexity | High |
| Privileges Required | High |
| User Interaction | Required |
| Scope | Unchanged |
| Confidentiality Impact | None |
| Integrity Impact | None |
| Availability Impact | High |
| CVSSv3 Version | 3.1 |
SUSE Security Advisories:
- SUSE-SU-2024:1486-1, published Mon Aug 19 12:41:35 UTC 2024
- SUSE-SU-2024:1486-2, published Mon Aug 19 12:39:07 UTC 2024
List of released packages
| Product(s) | Fixed package version(s) | References |
|---|---|---|
| Container suse/cosign:2.4.0-6.1 |
| |
| 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-SLE-Module-Basesystem-15-SP5-2024-1486 |
| 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-SLE-Module-Basesystem-15-SP6-2024-1486 |
| openSUSE Leap 15.5 |
| Patchnames: openSUSE-SLE-15.5-2024-1486 |
| openSUSE Leap 15.6 |
| Patchnames: openSUSE-SLE-15.6-2024-1486 |
| openSUSE Tumbleweed |
| Patchnames: openSUSE-Tumbleweed-2024-13863 openSUSE-Tumbleweed-2024-13903 |
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 SP5-ESPOS | cosign | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS | 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 SP5-LTSS | 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 | Affected |
| SUSE Manager Retail Branch Server 4.3 | cosign | Affected |
| SUSE Manager Server 4.3 | cosign | Affected |
| openSUSE Leap 15.5 | cosign | Released |
| openSUSE Leap 15.6 | cosign | Released |
| Products under Long Term Service Pack support and receiving important and critical security fixes. | ||
| SUSE Linux Enterprise Desktop 15 SP4 | cosign | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP4 | cosign | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS | cosign | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS | cosign | Affected |
| SUSE Linux Enterprise Module for Basesystem 15 SP4 | cosign | Affected |
| SUSE Linux Enterprise Server 15 SP4 | cosign | Affected |
| SUSE Linux Enterprise Server 15 SP4-LTSS | cosign | Affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP4 | cosign | Affected |
| Products past their end of life and not receiving proactive updates anymore. | ||
| SUSE Linux Enterprise Real Time 15 SP4 | cosign | Affected |
| openSUSE Leap 15.4 | cosign | Released |
| Container Status | ||
| suse/cosign | cosign | Released |
SUSE Timeline for this CVE
CVE page created: Thu Apr 11 02:00:18 2024CVE page last modified: Sat Dec 21 00:21:52 2024