CVE-2019-20398
MEDIUM
6.5
CVSS Score
Published: January 22, 2020 at 12:00 AM UTC
Updated: June 17, 2026 at 02:30 AM UTC
1 product affected across 1 vendorLibyang
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Severity
MEDIUM6.5
Exploit prediction
EPSS 2%
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.
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
References (5)
Issue TrackingPatchThird Party Advisory
Source: [email protected]
https://bugzilla.redhat.com/show_bug.cgi?id=1793935Third Party Advisory
Source: [email protected]
https://github.com/CESNET/libyang/compare/v1.0-r2...v1.0-r3CVSS
- Attack Vector
- NETWORK
- Complexity
- LOW
- Privileges
- NONE
- User Interaction
- REQUIRED
- Scope
- UNCHANGED
- Confidentiality
- NONE
- Integrity
- NONE
- Availability
- HIGH
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-476
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