CVE-2020-24455: Medium severity centos tpm2-tss vulnerability
Missing initialization of a variable in the TPM2 source may allow a privileged user to potentially enable an escalation of privilege via local access. This affects tpm2-tss before 3.0.1 and before 2.4.3.
Other sources
The tpm2-tss package has been updated to version 2.4.3, which includes a fix for this issue and several other changes. See the upstream release announcements for details.
References: https://github.com/tpm2-software/tpm2-tss/releases/tag/3.0.1 https://github.com/tpm2-software/tpm2-tss/releases/tag/2.4.3
— Red Hat
Affected Software
Remediation
Patch Available
Event History
Frequently Asked Questions
What is the severity of CVE-2020-24455?
CVE-2020-24455 has a high severity rating due to the potential for privilege escalation by a local attacker.
How do I fix CVE-2020-24455?
To fix CVE-2020-24455, upgrade the tpm2-tss package to version 2.4.3 or later.
Which versions of tpm2-tss are affected by CVE-2020-24455?
CVE-2020-24455 affects tpm2-tss versions prior to 2.4.3 and from 3.0.0 up to but not including 3.0.1.
Who can exploit CVE-2020-24455?
CVE-2020-24455 can potentially be exploited by privileged users with local access to the system.
What is the impact of CVE-2020-24455 on system security?
The impact of CVE-2020-24455 on system security includes potential escalation of privileges, which could allow attackers to gain unauthorized access to sensitive areas.