An issue was discovered in the trust-dns-server crate before 0.18.1 for Rust.
Priority LOW 36CWE-400Published · Updated
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 · NVD. Fix status from CNA and GitHub. Impact type from CWE-400.
Summary
An issue was discovered in the trust-dns-server crate before 0.18.1 for Rust. DNS MX and SRV null targets are mishandled, causing stack consumption.
Why it matters now
EPSS 0.01456 73rd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed trust-dns-server (crates.io): 0.18.1
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
| — | trust-dns-server (crates.io) | 0.16.0 to before 0.18.1 | 0.18.1 | Patch available | GHSA-4cww-f7w5-x525 |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
- trust-dns-server (crates.io) Vendor— Affected 0.16.0 to before 0.18.1 Fixed in 0.18.1 Patch available GHSA-4cww-f7w5-x525
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:trust-dns-server_project:trust-dns-server:*:*:*:*:*:rust:*:* | 0.16.0 to before 0.18.1 | Vulnerable | Trust-dns-server Project |
- cpe:2.3:a:trust-dns-server_project:trust-dns-server:*:*:*:*:*:rust:*:* Versions 0.16.0 to before 0.18.1 Vulnerable ·Trust-dns-server Project
Remediation
- Fix · GHSA-4cww-f7w5-x525 trust-dns-server (crates.io) Fixed in 0.18.1 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2020-35857
- 2026-10-03 Alias added: GHSA-4cww-f7w5-x525
References
Sources
- CVE-2020-35857 · CVE Program
- CVE-2020-35857 · NVD
- FIRST EPSS
- GHSA-4cww-f7w5-x525 · GitHub Advisory Database · CC BY 4.0
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