CVE-2019-20395

A stack consumption issue is present in libyang before v1.0-r1 due to the self-referential union type containing leafrefs. Applications that use libyang to parse untrusted input yang files may crash.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
6.5 MEDIUM
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
mitreCNA
---
---
CVEADP
---
---
Base Score
CVSS 3.x
EPSS Score
Percentile: 20%
VendorProductVersion
cesnetlibyang
0.11:r1
cesnetlibyang
0.11:r2
cesnetlibyang
0.12:r1
cesnetlibyang
0.12:r2
cesnetlibyang
0.13:r1
cesnetlibyang
0.13:r2
cesnetlibyang
0.14:r1
cesnetlibyang
0.15:r1
cesnetlibyang
0.16:r1
cesnetlibyang
0.16:r2
cesnetlibyang
0.16:r3
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
libyang
bullseye
1.0.225-1.1
fixed
sid
3.4.2+dfsg-2
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
libyang
noble
dne
mantic
dne
lunar
dne
kinetic
not-affected
jammy
not-affected
impish
not-affected
hirsute
ignored
groovy
ignored
focal
needed
eoan
ignored
bionic
dne
xenial
dne
trusty
dne
libyang2
noble
not-affected
mantic
not-affected
lunar
not-affected
kinetic
not-affected
jammy
not-affected
impish
dne
hirsute
dne
groovy
dne
focal
dne
eoan
dne
bionic
dne
xenial
dne
trusty
dne
Common Weakness Enumeration
References
https://bugzilla.redhat.com/show_bug.cgi?id=1793924
https://github.com/CESNET/libyang/commit/4e610ccd87a2ba9413819777d508f71163fcc237
https://github.com/CESNET/libyang/compare/v0.16-r3...v1.0-r1
https://github.com/CESNET/libyang/issues/724
https://lists.debian.org/debian-lts-announce/2023/09/msg00019.html
https://bugzilla.redhat.com/show_bug.cgi?id=1793924
https://github.com/CESNET/libyang/commit/4e610ccd87a2ba9413819777d508f71163fcc237
https://github.com/CESNET/libyang/compare/v0.16-r3...v1.0-r1
https://github.com/CESNET/libyang/issues/724
https://lists.debian.org/debian-lts-announce/2023/09/msg00019.html