CVEvulnerability

CVE-2019-20398

6.5 MEDIUM Published 2020-01-22 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2020-01-22
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
6.5 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
CVSS 2.0 ([email protected])
4.3 MEDIUM — AV:N/AC:M/Au:N/C:N/I:N/A:P
Weaknesses
CWE-476

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.

Affected configurations

• cesnet libyang 0.11 • cesnet libyang 0.12 • cesnet libyang 0.13 • cesnet libyang 0.14 • cesnet libyang 0.15 • cesnet libyang 0.16 • cesnet libyang 1.0

Related

Weakness · CWE (1)

  • CWE-476 NULL Pointer Dereference weakness

References