Security readout for executives and security teams
Plain-English summary
Docker Notary before version 0.1 could trust a forged signature because the signature algorithm field was attacker-controlled. In business terms, this affects the integrity assurance Notary is meant to provide. The public bundle does not provide CVSS, observed exploitation, or detailed affected product inventory.
Executive priority
Treat as an integrity risk for legacy Notary deployments. Urgency depends on whether pre-0.1 Notary exists in release, image-signing, or software-supply-chain workflows. If absent, business exposure is likely low.
Technical view
The issue is in gotuf/signed/verify.go in Docker Notary before 0.1. Signature verification could mismatch the claimed algorithm and key type. The CVE description notes a possible RSA-PSS key misinterpretation as Ed25519 elliptic-curve data, potentially enabling signature forgery.
Likely exposure
Exposure is most likely limited to deployments, forks, or vendored dependencies using Docker Notary before 0.1 or the affected gotuf verification code. The provided affected-product metadata is incomplete and lists vendor, product, and versions as n/a.
Exploitation context
The source bundle does not identify active exploitation, and KEV is false. The vulnerability matters where an attacker can influence signed metadata or signatures processed by vulnerable Notary verification logic, but the bundle does not provide exploit prerequisites or field evidence.
Researcher notes
The public record is sparse: no CVSS, CWE, CPEs, or exploit evidence are supplied. The key technical claim is algorithm/key confusion during signature verification. Analysis should stay tied to pre-0.1 Notary and avoid expanding scope without code or advisory confirmation.
Mitigation direction
- Identify any Docker Notary versions older than 0.1.
- Check for vendored gotuf code containing the affected verification logic.
- Upgrade away from pre-0.1 Notary where present.
- Review Docker Notary changelog and vendor guidance before production changes.
- Prioritize systems relying on Notary for release or image integrity.
Validation and detection
- Inventory Notary binaries, containers, and vendored source dependencies.
- Confirm no production path uses Notary before 0.1.
- Review dependency lockfiles for old Notary or gotuf references.
- Verify signature validation components use patched upstream code.
- Document any compensating controls for legacy systems.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
Container behavior lookup
The affected technology mentions containers, so container-specific ATT&CK technique review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2015-9258 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://docs.docker.com/notary/changelog/CVE reference · x_refsource_MISC
- https://github.com/theupdateframework/notary/blob/master/docs/resources/ncc_docker_notary_audit_2015_07_31.pdfCVE reference · x_refsource_MISC
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.