vulnerability
Debian: CVE-2019-20398: libyang -- security update
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 4 | (AV:N/AC:M/Au:N/C:N/I:N/A:P) | Jan 22, 2020 | Sep 21, 2023 | Aug 15, 2025 |
Severity
4
CVSS
(AV:N/AC:M/Au:N/C:N/I:N/A:P)
Published
Jan 22, 2020
Added
Sep 21, 2023
Modified
Aug 15, 2025
Description
A NULL pointer dereference is present in libyang before v1.0-r3 in the function lys_extension_instances_free() due to a copy of unresolved extensions in lys_restr_dup(). Applications that use libyang to parse untrusted input yang files may crash.
Solution
debian-upgrade-libyang
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