CVE-2019-19794
MEDIUM
5.9
CVSS Score
Published: December 13, 2019 at 09:46 PM UTC
Updated: June 17, 2026 at 02:27 AM UTC
1 product affected across 1 vendorMiekg DNS
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Severity
MEDIUM5.9
Exploit prediction
EPSS 2%
Description
The miekg Go DNS package before 1.1.25, as used in CoreDNS before 1.6.6 and other products, improperly generates random numbers because math/rand is used. The TXID becomes predictable, leading to response forgeries.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
v < 1.1.25
Affected range stops below 1.1.25, so it looks safe — our inference, not a vendor statement
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
References (5)
x_refsource_MISCIssue TrackingThird Party Advisory
Source: [email protected]
https://github.com/coredns/coredns/issues/3519x_refsource_CONFIRMThird Party Advisory
Source: [email protected]
https://github.com/coredns/coredns/issues/3547x_refsource_MISCRelease NotesThird Party Advisory
Source: [email protected]
https://github.com/miekg/dns/compare/v1.1.24...v1.1.25x_refsource_MISCExploitIssue TrackingThird Party Advisory
Source: [email protected]
https://github.com/miekg/dns/issues/1043x_refsource_MISCPatchThird Party Advisory
Source: [email protected]
https://github.com/miekg/dns/pull/1044CVSS
- Attack Vector
- NETWORK
- Complexity
- HIGH
- Privileges
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- NONE
- Integrity
- HIGH
- Availability
- NONE
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-338
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