Vulnerability in Miekg-Dns Project
CVE-2019-19794
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N.
EPSS exploit prediction
EPSS: 0.021 (80.7th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 81st percentile — 80.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.021 · newest: 0.021 · change: 0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/miekg/dns/issues/1043 (Exploit, Third Party Advisory, Issue Tracking)
- github.com/coredns/coredns/issues/3519 (Third Party Advisory, Issue Tracking)
- github.com/miekg/dns/pull/1044 (Patch, Third Party Advisory)
- github.com/miekg/dns/compare/v1.1.24...v1.1.25 (Third Party Advisory, Release Notes)
- github.com/coredns/coredns/issues/3547 (Third Party Advisory)
Frequently asked questions
- What is CVE-2019-19794?
- CVE-2019-19794 is a medium-severity vulnerability in Miekg-Dns Project, classified under Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG). CVSS score: 5.9/10. Published 2019-12-13.
- How severe is CVE-2019-19794?
- Medium severity. CVSS v3 base score is 5.9 out of 10.
- Is CVE-2019-19794 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.