Bug 1964465 (CVE-2020-28407)

Summary: CVE-2020-28407 swtpm: symlink issue may lead to privilege escalation
Product: [Other] Security Response Reporter: Mauro Matteo Cascella <mcascell>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED WONTFIX QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: davide, marcandre.lureau, stefanb, virt-maint
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: swtpm 0.4.2, swtpm 0.5.1 Doc Type: If docs needed, set a value
Doc Text:
A flaw was found in swtpm. This flaw allows an attacker to create a symbolic link with the name of the temporary file (TMP2-00.permall for TPM 2) and have this point to a valuable file, which will get overwritten by swtpm. The success of the attack depends on the attacker having access to the TPM's state directory (--tpmstate dir). The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
Story Points: ---
Clone Of: Environment:
Last Closed: 2021-10-29 09:07:28 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On: 1964476    
Bug Blocks: 1964406    

Comment 4 Stefan Berger 2021-10-14 21:15:59 UTC
This bug has been fixed a while ago. I think this bugzilla can be closed.