CVE-2021-36222

ec_verify in kdc/kdc_preauth_ec.c in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) before 1.18.4 and 1.19.x before 1.19.2 allows remote attackers to cause a NULL pointer dereference and daemon crash. This occurs because a return value is not properly managed in a certain situation.
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: 89%
VendorProductVersion
mitkerberos_5
𝑥
< 1.18.4
mitkerberos_5
1.19.0 ≤
𝑥
< 1.19.2
debiandebian_linux
10.0
netappactive_iq_unified_manager
-
netappactive_iq_unified_manager
-
netapponcommand_insight
-
netapponcommand_workflow_automation
-
netappsnapcenter
-
oraclemysql_server
8.0.0 ≤
𝑥
≤ 8.0.26
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
krb5
bullseye (security)
1.18.3-6+deb11u5
fixed
bullseye
1.18.3-6+deb11u5
fixed
stretch
not-affected
bookworm
1.20.1-2+deb12u2
fixed
bookworm (security)
1.20.1-2+deb12u2
fixed
sid
1.21.3-3
fixed
trixie
1.21.3-3
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
krb5
noble
not-affected
mantic
not-affected
lunar
not-affected
kinetic
not-affected
jammy
not-affected
impish
not-affected
hirsute
ignored
focal
Fixed 1.17-6ubuntu4.3
released
bionic
Fixed 1.16-2ubuntu0.4
released
xenial
not-affected
trusty
not-affected