MEDIUM
libyang: NULL pointer dereference in function lys_extension_instances_free()
Published Jan 22, 2020
6.5
MEDIUMCVSS 3.1
EPSS 1.82%
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.
Affected products
No data.
OR
- 0.11
- 0.11
- 0.12
- 0.12
- 0.13
- 0.13
- 0.14
- 0.15
- 0.16
- 0.16
- 0.16
- 1.0
- 1.0
No data.
Red Hat Enterprise Linux 8
libyang-0:1.0.184-1.el8
Fixed · RHEA-2021:1906
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 8 | libyang-0:1.0.184-1.el8 | Fixed | RHEA-2021:1906 |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Weaknesses (1)
References (9)
- https://access.redhat.com/security/cve/CVE-2019-20398 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1793935 Issue TrackingPatchThird Party Advisory
- https://euvd.enisa.europa.eu/vulnerability/EUVD-2019-10948 Advisory
- https://github.com/CESNET/libyang/commit/7852b272ef77f8098c35deea6c6f09cb78176f08 Patch
- https://github.com/CESNET/libyang/compare/v1.0-r2...v1.0-r3 Third Party Advisory
- https://github.com/CESNET/libyang/issues/773 ExploitThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2023/09/msg00019.html mailing-list
- https://nvd.nist.gov/vuln/detail/CVE-2019-20398
- https://www.cve.org/CVERecord?id=CVE-2019-20398
| Link | Providers | Tags |
|---|---|---|
| https://access.redhat.com/security/cve/CVE-2019-20398 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1793935 | Issue TrackingPatchThird Party Advisory | |
| https://euvd.enisa.europa.eu/vulnerability/EUVD-2019-10948 | Advisory | |
| https://github.com/CESNET/libyang/commit/7852b272ef77f8098c35deea6c6f09cb78176f08 | Patch | |
| https://github.com/CESNET/libyang/compare/v1.0-r2...v1.0-r3 | Third Party Advisory | |
| https://github.com/CESNET/libyang/issues/773 | ExploitThird Party Advisory | |
| https://lists.debian.org/debian-lts-announce/2023/09/msg00019.html | mailing-list | |
| https://nvd.nist.gov/vuln/detail/CVE-2019-20398 | ||
| https://www.cve.org/CVERecord?id=CVE-2019-20398 |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mitre
Published Jan 22, 2020
Updated Aug 5, 2024
Reserved Jan 22, 2020
Link CVE-2019-20398
CISA Vulnrichment
Updated n/a
ENISA EUVD
EUVD-2019-10948 Assigner mitre
Published Jan 22, 2020
Updated Aug 5, 2024
Exploited since n/a
Link EUVD-2019-10948