VDB
CVE-2019-20398
CVE-2019-20398
PUBLISHED
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.
EPSS 0.16% · 36.0th percentile
Risk Scores
EPSS Score
0.16%
36.0th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Ubuntu:20.04:LTS | libyang | 0, 0.16.105-1, 0.16.105-2 |
Exploit Intelligence
- https://github.com/CESNET/libyang/issues/773 (nist-nvd)
- https://github.com/CESNET/libyang/compare/v1.0-r2...v1.0-r3 (circl)
- https://github.com/CESNET/libyang/commit/7852b272ef77f8098c35deea6c6f09cb78176f08 (circl)
- https://bugzilla.redhat.com/show_bug.cgi?id=1793935 (circl)
- [debian-lts-announce] 20230919 [SECURITY] [DLA 3572-1] libyang security update (circl)
Timeline
- Jan 22, 2020 CVE Published
- Apr 14, 2021 EPSS Score
- Jun 23, 2021 EPSS Score
- Aug 24, 2021 EPSS Score
- Oct 26, 2021 EPSS Score
- Dec 27, 2021 EPSS Score
- Feb 28, 2022 EPSS Score
- Apr 1, 2022 EPSS Score
- May 1, 2022 EPSS Score
- Jul 3, 2022 EPSS Score
- Sep 4, 2022 EPSS Score
- Nov 6, 2022 EPSS Score
References
- https://ubuntu.com/security/CVE-2019-20398 third-party-advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1793935 third-party-advisory
- https://github.com/CESNET/libyang/commit/7852b272ef77f8098c35deea6c6f09cb78176f08 third-party-advisory
- https://github.com/CESNET/libyang/issues/773 third-party-advisory
- https://github.com/CESNET/libyang/compare/v1.0-r2...v1.0-r3 third-party-advisory
- https://www.cve.org/CVERecord?id=CVE-2019-20398 third-party-advisory