CVE-2021-45079

In strongSwan before 5.9.5, a malicious responder can send an EAP-Success message too early without actually authenticating the client and (in the case of EAP methods with mutual authentication and EAP-only authentication for IKEv2) even without server authentication.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
9.1 CRITICAL
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
mitreCNA
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CVEADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 8%
VendorProductVersion
strongswanstrongswan
4.1.2 ≤
𝑥
< 5.9.5
debiandebian_linux
9.0
debiandebian_linux
10.0
debiandebian_linux
11.0
fedoraprojectextra_packages_for_enterprise_linux
7.0
fedoraprojectextra_packages_for_enterprise_linux
8.0
fedoraprojectextra_packages_for_enterprise_linux
9.0
canonicalubuntu_linux
14.04
canonicalubuntu_linux
16.04
canonicalubuntu_linux
18.04
canonicalubuntu_linux
20.04
canonicalubuntu_linux
21.10
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
strongswan
bullseye (security)
5.9.1-1+deb11u4
fixed
bullseye
5.9.1-1+deb11u4
fixed
bookworm
5.9.8-5+deb12u1
fixed
bookworm (security)
5.9.8-5+deb12u1
fixed
sid
5.9.13-2
fixed
trixie
5.9.13-2
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
strongswan
noble
Fixed 5.9.4-1ubuntu4
released
mantic
Fixed 5.9.4-1ubuntu4
released
lunar
Fixed 5.9.4-1ubuntu4
released
kinetic
Fixed 5.9.4-1ubuntu4
released
jammy
Fixed 5.9.4-1ubuntu4
released
impish
Fixed 5.9.1-1ubuntu3.2
released
hirsute
ignored
focal
Fixed 5.8.2-1ubuntu3.4
released
bionic
Fixed 5.6.2-1ubuntu2.8
released
xenial
Fixed 5.3.5-1ubuntu3.8+esm2
released
trusty
Fixed 5.1.2-0ubuntu2.11+esm2
released