notation-go has excessive memory allocation on verification
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-770.
Summary
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`.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| notaryproject | notation-go | 1.0.0-rc.3 to before 1.0.0-rc.3 | 1.0.0-rc.3 | Patch available | CNA |
| — | github.com/notaryproject/notation-go (Go) | before 1.0.0-rc.3 | 1.0.0-rc.3 | Patch available | GHSA-87x9-7grx-m28v |
- notation-go Vendornotaryproject Affected 1.0.0-rc.3 to before 1.0.0-rc.3 Fixed in 1.0.0-rc.3 Patch available CNA
- github.com/notaryproject/notation-go (Go) Vendor— Affected before 1.0.0-rc.3 Fixed in 1.0.0-rc.3 Patch available GHSA-87x9-7grx-m28v
CPE configurations NVD · 3
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:notaryproject:notation-go:0.7.0:alpha1:*:*:*:*:*:* | 0.7.0 alpha1 | Vulnerable | notaryproject |
| cpe:2.3:a:notaryproject:notation-go:0.8.0:alpha1:*:*:*:*:*:* | 0.8.0 alpha1 | Vulnerable | notaryproject |
| cpe:2.3:a:notaryproject:notation-go:0.9.0:alpha1:*:*:*:*:*:* | 0.9.0 alpha1 | Vulnerable | notaryproject |
- cpe:2.3:a:notaryproject:notation-go:0.7.0:alpha1:*:*:*:*:*:* Versions 0.7.0 alpha1 Vulnerable ·notaryproject
- cpe:2.3:a:notaryproject:notation-go:0.8.0:alpha1:*:*:*:*:*:* Versions 0.8.0 alpha1 Vulnerable ·notaryproject
- cpe:2.3:a:notaryproject:notation-go:0.9.0:alpha1:*:*:*:*:*:* Versions 0.9.0 alpha1 Vulnerable ·notaryproject
Remediation
- Fix · CNA notation-go (notaryproject) Fixed in 1.0.0-rc.3
- Fix · GHSA-87x9-7grx-m28v github.com/notaryproject/notation-go (Go) Fixed in 1.0.0-rc.3 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2023-25656
- 2026-10-03 Alias added: GHSA-87x9-7grx-m28v
References
Advisory 2
More notaryproject Notation-go vulnerabilities
- TI-2024-34412 Process crash during CRL-based revocation check on OS using separate mount point for temp Directory in notation-go CVSS 3.1LOW 3.3
- TI-2023-16827 Verification bypass can cause users into verifying the wrong artifact CVSS 3.1HIGH 8.8
- TI-2024-15434 Client configured with permissive trust policies susceptible to rollback attack in Notary Project CVSS 3.1MEDIUM 6.8
- TI-2023-16826 Default `maxSignatureAttempts` in `notation verify` enables an endless data attack in notation CVSS 3.1MEDIUM 6.5
- TI-2023-16825 Denial of service from high number of artifact signatures in notation CVSS 3.1MEDIUM 5.7
Sources
- CVE-2023-25656 · CVE Program
- CVE-2023-25656 · NVD
- FIRST EPSS
- GHSA-87x9-7grx-m28v · GitHub Advisory Database · CC BY 4.0
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