HMAC zero-length tag forgery in EVP_DigestVerifyFinal
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| wolfSSL | wolfSSL | unaffected |
|
No data.
| Vendor | Product | Versions | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Wolfssl | Wolfssl |
|
| Source | ID | Title |
|---|---|---|
Debian DLA |
DLA-4683-1 | wolfssl security update |
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.190% probability within 30 days)
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
|
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Wolfssl
Wolfssl wolfssl |
|
| Vendors & Products |
Wolfssl
Wolfssl wolfssl |
| Type | Values Removed | Values Added |
|---|---|---|
| Description | HMAC zero-length tag forgery in EVP_DigestVerifyFinal, where a zero-length tag could be accepted as valid during HMAC verification. In the OpenSSL-compatibility HMAC verify path the supplied signature length was only checked as not exceeding the MAC length, so a zero-length or otherwise truncated tag could pass verification. The fix requires the supplied tag length to exactly equal the MAC length and rejects a zero-length MAC, so a forged short or empty tag is no longer accepted. | |
| Title | HMAC zero-length tag forgery in EVP_DigestVerifyFinal | |
| Weaknesses | CWE-347 | |
| References |
| |
| Metrics |
cvssV4_0
|