CVE-2017-14339

Public Exploit

Description

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.

Category

7.5
CVSS
Severity: High
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.83% Top 30%
Vendor Advisory debian.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://github.com/yadifa/yadifa/blob/v2.2.6/ChangeLog third party advisory
https://www.tarlogic.com/blog/fuzzing-yadifa-dns/ exploit third party advisory technical description
http://www.debian.org/security/2017/dsa-4001 vendor advisory

Frequently Asked Questions

What is the severity of CVE-2017-14339?
CVE-2017-14339 has been scored as a high severity vulnerability.
How to fix CVE-2017-14339?
To fix CVE-2017-14339, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2017-14339 being actively exploited in the wild?
It is possible that CVE-2017-14339 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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