Caching of GATT characteristic values (TempID) in COVIDSafe v1.0.15 and v1.0.16 allows a remote attacker to long-term re-identify an Android device running COVIDSafe.Referenceshttps://www.health.gov.au/resources/apps-and-tools/covidsafe-apphttps://docs.google.com/document/d/1u5a5ersKBH6eG362atALrzuXo3zuZ70qrGomWVEC27U/edit?usp=sharinghttps://covidsafe.watch/issue-register/cve-2020-12857-tempid-identifier-was-static
