CVE-2023-25656

notation-go has excessive memory allocation on verification

Description

notation-go is a collection of libraries for supporting Notation sign, verify, push, and pull of oci artifacts. Prior to version 1.0.0-rc.3, notation-go users will find their application using excessive memory when verifying signatures. The application will be killed, and thus availability is impacted. The problem has been patched in the release v1.0.0-rc.3. Some workarounds are available. Users can review their own trust policy file and check if the identity string contains `=#`. Meanwhile, users should only put trusted certificates in their trust stores referenced by their own trust policy files, and make sure the `authenticity` validation is set to `enforce`.

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
EPSS 0.13%
Vendor Advisory github.com
Affected: notaryproject notation-go
Published at:
Updated at:

References

Link Tags
https://github.com/notaryproject/notation-go/releases/tag/v1.0.0-rc.3 release notes
https://github.com/notaryproject/notation-go/security/advisories/GHSA-87x9-7grx-m28v vendor advisory

Frequently Asked Questions

What is the severity of CVE-2023-25656?
CVE-2023-25656 has been scored as a high severity vulnerability.
How to fix CVE-2023-25656?
To fix CVE-2023-25656, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2023-25656 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2023-25656 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2023-25656?
CVE-2023-25656 affects notaryproject notation-go.
This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.
© 2025 Under My Watch. All Rights Reserved.