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CVE-2019-20398

nvd nist
Published: Jan 22, 2020Modified: Nov 21, 2024

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6.5
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Exploitability: 2.8 / Impact: 3.6
Source: NVD

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 (13)

Products: Cesnet: Libyang
Cesnet
1 product
Libyang
Configuration A
13 vulnerable
Vulnerable SoftwareAffected Versions
Cesnet
Libyang
Version 0.11 r1
Libyang
Version 0.11 r2
Libyang
Version 0.12 r1
Libyang
Version 0.12 r2
Libyang
Version 0.13 r1
Libyang
Version 0.13 r2
Libyang
Version 0.14 r1
Libyang
Version 0.15 r1
Libyang
Version 0.16 r1
Libyang
Version 0.16 r2
Libyang
Version 0.16 r3
Libyang
Version 1.0 r1
Libyang
Version 1.0 r2

Related CWEs

CWE-476
NULL Pointer Dereference
The product dereferences a pointer that it expects to be valid but is NULL.

References (10)

Source: cve@mitre.org
Issue TrackingPatchThird Party Advisory
Source: cve@mitre.org
Patch
Source: cve@mitre.org
Third Party Advisory
Source: cve@mitre.org
ExploitThird Party Advisory
Source: cve@mitre.org
Source: af854a3a-2127-422b-91ae-364da2661108
Issue TrackingPatchThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Patch
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
ExploitThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108

Timeline

No history available yet.