CVE-2019-20396
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2019-20396
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2019-20396.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2019-20396
- Downstream
- Published
- 2020-01-22T22:15:10.470Z
- Modified
- 2025-11-14T09:35:16.296887Z
- Severity
-
- 6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H CVSS Calculator
- Summary
- [none]
- Details
-
A segmentation fault is present in yyparse in libyang before v1.0-r1 due to a malformed pattern statement value during lysparsepath parsing.
- References
Affected packages
Git / github.com/cesnet/libyang
Affected ranges
- Type
- GIT
- Repo
- https://github.com/cesnet/libyang
- Events
-
Introduced0 Unknown introduced commit / All previous commits are affectedFixed
Affected versions
v0.*
v0.11-r1
v0.11-r2
v0.12-r1
v0.12-r2
v0.13-r1
v0.13-r2
v0.14-r1
v0.15-r1
v0.16-r1
v0.16-r2
v0.16-r3
Database specific
vanir_signatures
[
{
"signature_version": "v1",
"source": "https://github.com/cesnet/libyang/commit/a1f17693904ed6fecc8902c747fc50a8f20e6af8",
"signature_type": "Function",
"target": {
"function": "yyparse",
"file": "src/parser_yang_bis.c"
},
"id": "CVE-2019-20396-34ee9590",
"digest": {
"length": 121387.0,
"function_hash": "77555260869703791548682690774890099272"
},
"deprecated": false
},
{
"signature_version": "v1",
"source": "https://github.com/cesnet/libyang/commit/a1f17693904ed6fecc8902c747fc50a8f20e6af8",
"signature_type": "Line",
"target": {
"file": "src/parser_yang_bis.c"
},
"id": "CVE-2019-20396-7b4151cd",
"digest": {
"line_hashes": [
"8951943926037236718842534528035772412",
"186241053998576123766993079963883627801",
"263516074267876542474601258196836796276",
"175814208747679021527942933567404922335"
],
"threshold": 0.9
},
"deprecated": false
}
]