CVE-2017-14339: The DNS packet parser in YADIFA before 2.2.6 does not check for the presence of infinite pointer loops, and th

Q: How do I fix CVE-2017-14339?

yadifa: upgrade to newer than 2.2.5. Exact commands for each OS are on this page.

Q: Is CVE-2017-14339 being exploited?

CVE-2017-14339 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2017-14339 affect?

CVE-2017-14339 affects yadifa. Severity is high (CVSS 7.5). 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.

Q: How urgent is CVE-2017-14339?

Priority 57/100. High severity; Public exploit reference; Remotely exploitable, no login, no user action

This week

HIGH 7.5REMOTEUPGRADE

CVE-2017-14339 is a high-severity flaw (CVSS 7.5) affecting yadifa. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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.

Why this priority

High severity
Public exploit reference
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	2.5% (top 15%)
CISA exploited list	No
Weakness	CWE-835
Published	2017-09-20
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: yadifa

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2017-09-20 16:29 UTCPublished CVE record published
2026-06-17 01:05 UTCUpdated Record last modified

yadifa yadifa UPGRADE

Affected: <= 2.2.5

Fixed in: newer than 2.2.5

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy yadifa || rpm -q yadifa || yadifa --version

2. UPGRADE to newer than 2.2.5 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade yadifa

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade yadifa

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2017-14339?

yadifa: upgrade to newer than 2.2.5. Exact commands for each OS are on this page.

Is CVE-2017-14339 being exploited?

CVE-2017-14339 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2017-14339 affect?

CVE-2017-14339 affects yadifa. Severity is high (CVSS 7.5). 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.

How urgent is CVE-2017-14339?

Priority 57/100. High severity; Public exploit reference; Remotely exploitable, no login, no user action

References

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