CVE-2020-24455 is a medium-severity vulnerability affecting tpm2-tss versions prior to 3.0.1 and 2.4.3, including specific Fedora Project distributions. It stems from a missing variable initialization in the TPM2 source, which could allow a privileged local user to escalate privileges. The CVSS score of 6.7 indicates a local attack vector with low complexity, leading to high impacts on confidentiality, integrity, and availability. Currently, there is no evidence of active exploitation, publicly available exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 2.4.3CPE matchmatch criteria | cpe:2.3:a:tpm2_software_stack_project:tpm2_software_stack:*:*:*:*:*:*:*:* | ||
>= 3.0.0, < 3.0.1CPE matchmatch criteria | cpe:2.3:a:tpm2_software_stack_project:tpm2_software_stack:*:*:*:*:*:*:*:* | ||
34CPE matchmatch criteria | cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
CVE-2020-24455
Jul 13, 2021Missing 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.
Feb 9, 2021tpm2-tss: FAPI PolicyPCR not instatiating correctly
Oct 13, 2020