Security readout for executives and security teams
Plain-English summary
This Rust crate issue can leave sensitive enum data in memory after it is dropped, despite using zeroization. The business concern is residual secrets in memory, not a remote-code-execution flaw. Public sources identify affected zeroize_derive versions before 1.1.1, but provide no CVSS score or active exploitation evidence.
Executive priority
Treat as targeted dependency remediation for Rust systems handling secrets. Prioritize higher if affected services process credentials, keys, or tokens and produce memory dumps or diagnostics.
Technical view
zeroize_derive before 1.1.1 does not zero dropped memory for enums. Rust projects relying on derived Zeroize behavior for enums may leave secrets recoverable from process memory, crash dumps, or similar artifacts. The source bundle does not name specific downstream products, CWEs, or exploit primitives.
Likely exposure
Exposure is limited to Rust projects depending on zeroize_derive before 1.1.1, especially where derived zeroization is used on enums containing keys, tokens, passwords, or other secrets.
Exploitation context
CISA KEV status is false, and the provided sources do not report active exploitation. Practical risk depends on an attacker obtaining memory visibility through another weakness, local access, diagnostics, or dump collection.
Researcher notes
The evidence is narrow but clear: the flaw is in zeroize_derive enum drop behavior before 1.1.1. No CVSS, CWE, product CPEs, or exploitation details are provided, so avoid broad impact claims.
Mitigation direction
- Upgrade zeroize_derive to version 1.1.1 or later.
- Audit Rust dependency manifests and lockfiles for vulnerable zeroize_derive versions.
- Review enum types that store sensitive values and rely on derived zeroization.
- Check vendor and RustSec guidance before accepting residual risk.
Validation and detection
- Confirm dependency resolution no longer includes zeroize_derive before 1.1.1.
- Identify code paths using zeroization derives on enums holding secrets.
- Review crash dump and diagnostic collection practices for secret exposure risk.
- Run existing unit and regression tests after dependency updates.
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.
CVE-2021-45706 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://rustsec.org/advisories/RUSTSEC-2021-0115.htmlCVE reference · x_refsource_MISC
- https://raw.githubusercontent.com/rustsec/advisory-db/main/crates/zeroize_derive/RUSTSEC-2021-0115.mdCVE 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.