What is CVE-2017-14339?

CVE-2017-14339 is a high-severity vulnerability in Yadifa, classified under Loop with Unreachable Exit Condition (Infinite Loop). CVSS score: 7.5/10. Published 2017-09-20.

How severe is CVE-2017-14339?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in Yadifa

CVE-2017-14339

The DNS packet parser in YADIFA before 2.2.6 does not check for the presence of infinite pointer loops, and thus it is possible to force it to enter an infinite loop. This can cause high CPU usage and makes the server unresponsive.

Published 2017-09-20 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.025 (84.3th percentile), scored 2026-10-01.

Low probability of exploitation in the next 30 days, but still tracked. 84th percentile — 84.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.025 · newest: 0.025 · change: 0.000

Affected products

Yadifa

Weakness classification (CWE)

CWE-835 — Loop with Unreachable Exit Condition (Infinite Loop)

References

github.com/yadifa/yadifa/blob/v2.2.6/ChangeLog (Third Party Advisory)
www.tarlogic.com/blog/fuzzing-yadifa-dns/ (Technical Description, Exploit, Third Party Advisory)
www.debian.org/security/2017/dsa-4001 (vendor-advisory)

Frequently asked questions

What is CVE-2017-14339?: CVE-2017-14339 is a high-severity vulnerability in Yadifa, classified under Loop with Unreachable Exit Condition (Infinite Loop). CVSS score: 7.5/10. Published 2017-09-20.
How severe is CVE-2017-14339?: High severity. CVSS v3 base score is 7.5 out of 10.