CVE-2025-2884: Tpm2 Missing Hmac Sigalg Check
A TPM signature structure is accessed for HMAC operations (reading `any.hashAlg` and accessing `hmac.digest`) without validating that the signature algorithm tag (`sigAlg`) is actually `TPM_ALG_HMAC`. This can lead to an out-of-bounds memory read due to union type confusion. Always verify the signature algorithm type.
Cgreprules fetch cve-2025-2884-tpm2-missing-hmac-sigalg-check --engine opengrepDescription
A TPM signature structure is accessed for HMAC operations (reading `any.hashAlg` and accessing `hmac.digest`) without validating that the signature algorithm tag (`sigAlg`) is actually `TPM_ALG_HMAC`. This can lead to an out-of-bounds memory read due to union type confusion. Always verify the signature algorithm type.
Community feedback
0 rule-level signals from signed-in users.
- Useful reports
- 0
- Context false positives
- 0
- Metadata suggestions
- 0
Contextual precision
Aggregated from approved scan feedback. False-positive reports describe observed scan contexts, not a global rule verdict.
- Findings observed
- 0
- Projects
- 0
- Reporters
- 0
Precision details are collecting more signed-in reports before verdict counts or ratios are emphasized.
No approved finding verdicts yet.
No scan diagnostics reported yet.