Improper random number generation in github.com/coredns/coredns
Priority LOW 38CWE-330Published · Updated
Key facts
- Attack vector
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- Privileges required
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- User interaction
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- Attack complexity
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- Impact type
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- Confidentiality · integrity · availability
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- Fix status
- Fixed
No CVSS vector from any source. Fix status from GitHub.
Summary
### Impact CoreDNS before 1.6.6 (using go DNS package < 1.1.25) improperly generates random numbers because math/rand is used. The TXID becomes predictable, leading to response forgeries. ### Patches The problem has been fixed in 1.6.6+. ### References - [CVE-2019-19794](https://nvd.nist.gov/vuln/detail/CVE-2019-19794) ### For more information Please consult [our security guide](https://github.com/coredns/coredns/blob/master/.github/SECURITY.md) for more information regarding our security process.
Why it matters now
Fix Fixed github.com/coredns/coredns (Go): 1.6.6
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 |
|---|---|---|---|---|---|
| — | github.com/coredns/coredns (Go) | before 1.6.6 | 1.6.6 | Patch available | GHSA-gv9j-4w24-q7vx |
- github.com/coredns/coredns (Go) Vendor— Affected before 1.6.6 Fixed in 1.6.6 Patch available GHSA-gv9j-4w24-q7vx
Remediation
- Fix · GHSA-gv9j-4w24-q7vx github.com/coredns/coredns (Go) Fixed in 1.6.6 Advisory →
Timeline
- 2026-10-03 Threatist record created from GHSA-gv9j-4w24-q7vx
Sources
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences