verify.c in GnuTLS before 1.4.4, when using an RSA key with exponent 3, does not properly handle excess data in the digestAlgorithm.parameters field when generating a hash, which allows remote attackers to forge a PKCS #1 v1.5 signature that is signed by that RSA key and prevents GnuTLS from correctly verifying X.509 and other certificates that use PKCS, a variant of CVE-2006-4339.
2006-09-14T19:07:00.000
2025-04-03T01:03:51.193
Deferred
CVSSv2: 5.0 (MEDIUM)
AV:N/AC:L/Au:N/C:N/I:P/A:N
10.0
2.9
| Type | Vendor | Product | Version/Range | Vulnerable? |
|---|---|---|---|---|
| Application | gnu | gnutls | 1.0.17 | Yes |
| Application | gnu | gnutls | 1.0.18 | Yes |
| Application | gnu | gnutls | 1.0.19 | Yes |
| Application | gnu | gnutls | 1.0.20 | Yes |
| Application | gnu | gnutls | 1.0.21 | Yes |
| Application | gnu | gnutls | 1.0.22 | Yes |
| Application | gnu | gnutls | 1.0.23 | Yes |
| Application | gnu | gnutls | 1.0.24 | Yes |
| Application | gnu | gnutls | 1.0.25 | Yes |
| Application | gnu | gnutls | 1.1.14 | Yes |
| Application | gnu | gnutls | 1.1.15 | Yes |
| Application | gnu | gnutls | 1.1.16 | Yes |
| Application | gnu | gnutls | 1.1.17 | Yes |
| Application | gnu | gnutls | 1.1.18 | Yes |
| Application | gnu | gnutls | 1.1.19 | Yes |
| Application | gnu | gnutls | 1.1.20 | Yes |
| Application | gnu | gnutls | 1.1.21 | Yes |
| Application | gnu | gnutls | 1.1.22 | Yes |
| Application | gnu | gnutls | 1.1.23 | Yes |
| Application | gnu | gnutls | 1.2.0 | Yes |
| Application | gnu | gnutls | 1.2.1 | Yes |
| Application | gnu | gnutls | 1.2.2 | Yes |
| Application | gnu | gnutls | 1.2.3 | Yes |
| Application | gnu | gnutls | 1.2.4 | Yes |
| Application | gnu | gnutls | 1.2.5 | Yes |
| Application | gnu | gnutls | 1.2.6 | Yes |
| Application | gnu | gnutls | 1.2.7 | Yes |
| Application | gnu | gnutls | 1.2.8 | Yes |
| Application | gnu | gnutls | 1.2.8.1a1 | Yes |
| Application | gnu | gnutls | 1.2.9 | Yes |
| Application | gnu | gnutls | 1.2.10 | Yes |
| Application | gnu | gnutls | 1.2.11 | Yes |
| Application | gnu | gnutls | 1.3.0 | Yes |
| Application | gnu | gnutls | 1.3.1 | Yes |
| Application | gnu | gnutls | 1.3.2 | Yes |
| Application | gnu | gnutls | 1.3.3 | Yes |
| Application | gnu | gnutls | 1.3.4 | Yes |
| Application | gnu | gnutls | 1.3.5 | Yes |
| Application | gnu | gnutls | 1.4.0 | Yes |
| Application | gnu | gnutls | 1.4.1 | Yes |