CVE-2021-28904

In function ext_get_plugin() in libyang <= v1.0.225, it doesn't check whether the value of revision is NULL. If revision is NULL, the operation of strcmp(revision, ext_plugins[u].revision) will lead to a crash.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
7.5 HIGH
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
mitreCNA
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CVEADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 36%
VendorProductVersion
cesnetlibyang
𝑥
≤ 1.0.225
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
libyang
bullseye
no-dsa
buster
no-dsa
sid
3.4.2+dfsg-2
fixed
libyang2
bookworm
2.1.30-2
fixed
bullseye
no-dsa
buster
no-dsa
sid
2.1.148-0.2
fixed
trixie
2.1.148-0.2
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
bionic
dne
xenial
ignored
trusty
dne
Common Weakness Enumeration
References
https://github.com/CESNET/libyang/issues/1451
https://security.gentoo.org/glsa/202107-54
https://github.com/CESNET/libyang/issues/1451
https://security.gentoo.org/glsa/202107-54