CVE-2021-3565

Name	CVE-2021-3565
Description	A flaw was found in tpm2-tools in versions before 5.1.1 and before 4.3.2. tpm2_import used a fixed AES key for the inner wrapper, potentially allowing a MITM attacker to unwrap the inner portion and reveal the key being imported. The highest threat from this vulnerability is to data confidentiality.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
Debian Bugs	989148

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
tpm2-tools (PTS)	bullseye	5.0-2	fixed
	bookworm	5.4-1	fixed
	sid, trixie	5.7-1	fixed

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

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
tpm2-tools	source	buster	(not affected)
tpm2-tools	source	(unstable)	5.0-2			989148

Notes

[buster] - tpm2-tools <not-affected> (Vulnerable code not present)
https://bugzilla.redhat.com/show_bug.cgi?id=1964427
https://github.com/tpm2-software/tpm2-tools/issues/2738
https://github.com/tpm2-software/tpm2-tools/commit/c069e4f179d5e6653a84fb236816c375dca82515