CVE-2021-3569: A stack corruption bug was found in libtpms in versions before 0.7.2 and before 0.8.0 while decrypting data using RSA. This flaw could result in a SIGBUS (bad…

PriorityP424medium5.5CVSS 3.1

AVLACLPRLUINSUCNINAH

EPSS

0.26%

17.5th percentile

A stack corruption bug was found in libtpms in versions before 0.7.2 and before 0.8.0 while decrypting data using RSA. This flaw could result in a SIGBUS (bad memory access) and termination of swtpm. The highest threat from this vulnerability is to system availability.

Affected

8 ranges

Vendor	Product	Version range	Fixed in
debian	libtpms	< libtpms 0.8.2-1 (bookworm)	libtpms 0.8.2-1 (bookworm)
libtpms_project	libtpms	< 0.7.2	0.7.2
libtpms_project	libtpms	—	—
libtpms_project	libtpms	>= 0 < 0.8.2-1	0.8.2-1
libtpms_project	libtpms	>= 0 < 0.8.2-1	0.8.2-1
libtpms_project	libtpms	>= 0 < 0.8.2-1	0.8.2-1
libtpms_project	libtpms	>= 0.7.3 < 0.8.0	0.8.0
redhat	enterprise_linux	—	—

CVSS provenance

nvdv3.15.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

nvdv2.02.1LOWAV:L/AC:L/Au:N/C:N/I:N/A:P

osv5.5MEDIUM

vendor_debian5.5MEDIUM

vendor_redhat5.5MEDIUM

Stop checking back — get the weekly exploitation signal.

Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.