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{"affected_release": [{"advisory": "RHEA-2021:1906", "cpe": "cpe:/a:redhat:enterprise_linux:8", "package": "libyang-0:1.0.184-1.el8", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2021-05-18T00:00:00Z"}], "bugzilla": {"description": "libyang: heap-based buffer over-read in function lys_type_free() due to malformed pattern", "id": "1793929", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1793929"}, "csaw": false, "cvss3": {"cvss3_base_score": "4.4", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N", "status": "verified"}, "cwe": "CWE-125", "details": ["A segmentation fault is present in yyparse in libyang before v1.0-r1 due to a malformed pattern statement value during lys_parse_path parsing.", "A heap-based buffer over-read flaw occurs in libyang in function lys_type_free() due to a malformed pattern statement value. Applications that use libyang to process untrusted input yang files may be vulnerable to this flaw, possibly causing a crash or information leaks."], "name": "CVE-2019-20396", "public_date": "2019-03-29T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2019-20396\nhttps://nvd.nist.gov/vuln/detail/CVE-2019-20396"], "threat_severity": "Moderate", "upstream_fix": "libyang 1.0-r1"}