What’s Vulnerable › Vulnerabilities

CVE-2022-2977

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2022-09-14 · updated 2026-06-17
• Weakness: CWE-416

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.

Affected products

• Linux kernel: from 4.12 before 4.14.276; from 4.15 before 4.19.238; from 4.20 before 5.4.189; from 5.5 before 5.10.110; from 5.11 before 5.15.33; from 5.16 before 5.16.19 — fixed in 4.14.276, 4.19.238, 5.10.110, 5.15.33, 5.16.19, 5.17.1

How to fix

Upgrade to a fixed version: Linux kernel 4.14.276, 4.19.238, 5.10.110, 5.15.33. Check the vendor advisory for mitigations.

References

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