A double-free is present in libyang before v1.0-r3 in the function yyparse() when a type statement in used in a notification statement. 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.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade libyang | Sep 21, 2023 | Jan 22, 2020 |
| Ubuntu | — | No solution exists | Jun 26, 2025 | Jan 22, 2020 |
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