CVE-2019-20396

Public Exploit

Description

A segmentation fault is present in yyparse in libyang before v1.0-r1 due to a malformed pattern statement value during lys_parse_path parsing.

Category

6.5
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.15%
Third-Party Advisory github.com Third-Party Advisory github.com Third-Party Advisory github.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://github.com/CESNET/libyang/compare/v0.16-r3...v1.0-r1 third party advisory
https://github.com/CESNET/libyang/issues/740 third party advisory exploit
https://github.com/CESNET/libyang/commit/a1f17693904ed6fecc8902c747fc50a8f20e6af8 third party advisory patch
https://lists.debian.org/debian-lts-announce/2023/09/msg00019.html mailing list

Frequently Asked Questions

What is the severity of CVE-2019-20396?
CVE-2019-20396 has been scored as a medium severity vulnerability.
How to fix CVE-2019-20396?
To fix CVE-2019-20396, 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-2019-20396 being actively exploited in the wild?
It is possible that CVE-2019-20396 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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