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CVE-2019-20393

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

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8.8
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Exploitability: 2.8 / Impact: 5.9
Source: NVD

Description

A double-free is present in libyang before v1.0-r1 in the function yyparse() when an empty description is used. Applications that use libyang to parse untrusted input yang files may be vulnerable to this flaw, which would cause a crash or potentially code execution.

Affected (11)

Products: Cesnet: Libyang
Cesnet
1 product
Libyang
Configuration A
11 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

Related CWEs

CWE-415
Double Free
The product calls free() twice on the same memory address, potentially leading to modification of unexpected memory locations.

References (10)

Source: cve@mitre.org
Issue TrackingPatchThird Party Advisory
Source: cve@mitre.org
PatchThird Party Advisory
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
PatchThird Party Advisory
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.