CVE-2021-45079

NameCVE-2021-45079
DescriptionIn 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.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub advisories/code/issues, web search, more)
ReferencesDLA-2909-1, DSA-5056-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
strongswan (PTS)buster5.7.2-1+deb10u2fixed
buster (security)5.7.2-1+deb10u3fixed
bullseye5.9.1-1+deb11u2fixed
bullseye (security)5.9.1-1+deb11u3fixed
bookworm, sid5.9.8-3fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
strongswansourcestretch5.5.1-4+deb9u6DLA-2909-1
strongswansourcebuster5.7.2-1+deb10u2DSA-5056-1
strongswansourcebullseye5.9.1-1+deb11u2DSA-5056-1
strongswansource(unstable)5.9.5-1

Notes

https://www.strongswan.org/blog/2022/01/24/strongswan-vulnerability-(cve-2021-45079).html
Patches: https://download.strongswan.org/security/CVE-2021-45079/

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