What is CVE-2023-25656?

CVE-2023-25656 is a high-severity vulnerability in Notaryproject Notation-Go, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 7.5/10. Published 2023-02-20.

How severe is CVE-2023-25656?

High severity. CVSS v3 base score is 7.5 out of 10.

Resource exhaustion in Notaryproject Notation-Go

CVE-2023-25656

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`.

EPSS: 0.004 (36.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Notaryproject Notation-go — versions 0.9.0, 0.8.0, 0.7.0

Weakness classification (CWE)

CWE-770 — Allocation of Resources Without Limits or Throttling

References

security-advisories@github.com (Release Notes)
security-advisories@github.com (Vendor Advisory)

Frequently asked questions

What is CVE-2023-25656?: CVE-2023-25656 is a high-severity vulnerability in Notaryproject Notation-Go, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 7.5/10. Published 2023-02-20.
How severe is CVE-2023-25656?: High severity. CVSS v3 base score is 7.5 out of 10.