CVE-2019-20398

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.

Weakness classification

• nvd@nist.gov: CWE-476

Primary references

• cve@mitre.org — Issue Tracking, Patch, Third Party Advisory
• cve@mitre.org — Patch
• cve@mitre.org — Third Party Advisory
• cve@mitre.org — Exploit, Third Party Advisory
• cve@mitre.org
• af854a3a-2127-422b-91ae-364da2661108 — Issue Tracking, Patch, Third Party Advisory
• af854a3a-2127-422b-91ae-364da2661108 — Patch
• af854a3a-2127-422b-91ae-364da2661108 — Third Party Advisory
• af854a3a-2127-422b-91ae-364da2661108 — Exploit, Third Party Advisory
• af854a3a-2127-422b-91ae-364da2661108