DEBIAN-CVE-2019-20398

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Source
https://security-tracker.debian.org/tracker/CVE-2019-20398
Import Source
https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2019-20398.json
JSON Data
https://api.test.osv.dev/v1/vulns/DEBIAN-CVE-2019-20398
Upstream
Published
2020-01-22T22:15:10.627Z
Modified
2025-11-14T03:03:59.377803Z
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 NULL pointer dereference is present in libyang before v1.0-r3 in the function lysextensioninstancesfree() due to a copy of unresolved extensions in lysrestr_dup(). Applications that use libyang to parse untrusted input yang files may crash.

References

Affected packages

Debian:11 / libyang

Package

Name
libyang
Purl
pkg:deb/debian/libyang?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.0.176-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2019-20398.json"

Debian:13 / libyang

Package

Name
libyang
Purl
pkg:deb/debian/libyang?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.0.176-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2019-20398.json"

Debian:14 / libyang

Package

Name
libyang
Purl
pkg:deb/debian/libyang?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.0.176-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2019-20398.json"