ASA-202106-55 log generated external raw
[ASA-202106-55] tpm2-tools: man-in-the-middle |
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Arch Linux Security Advisory ASA-202106-55
==========================================
Severity: Low
Date : 2021-06-22
CVE-ID : CVE-2021-3565
Package : tpm2-tools
Type : man-in-the-middle
Remote : No
Link : https://security.archlinux.org/AVG-1986
Summary
=======
The package tpm2-tools before version 5.1.1-1 is vulnerable to man-in-
the-middle.
Resolution
==========
Upgrade to 5.1.1-1.
# pacman -Syu "tpm2-tools>=5.1.1-1"
The problem has been fixed upstream in version 5.1.1.
Workaround
==========
None.
Description
===========
A security issue was found in tpm2-tools before version 5.1.1.
tpm2_import used a fixed AES key for the inner wrapper, potentially
allowing a man-in-the-middle (MITM) attacker to unwrap the inner
portion and reveal the key being imported.
Impact
======
A local attacker could disclose the secret portion of a key while it is
being imported into the TPM.
References
==========
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/pull/2739
https://github.com/tpm2-software/tpm2-tools/commit/47b3b6e6fffed7080a2f1ce7673207ea44823ef7
https://security.archlinux.org/CVE-2021-3565
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