The _gnutls_recv_client_kx_message function in lib/gnutls_kx.c in libgnutls in gnutls-serv in GnuTLS before 2.2.4 continues to process Client Hello messages within a TLS message after one has already been processed, which allows remote attackers to cause a denial of service (NULL dereference and crash) via a TLS message containing multiple Client Hello messages, aka GNUTLS-SA-2008-1-2.
2008-05-21T13:24:00.000
2025-04-09T00:30:58.490
Deferred
CVSSv2: 9.3 (HIGH)
AV:N/AC:M/Au:N/C:C/I:C/A:C
8.6
10.0
| Type | Vendor | Product | Version/Range | Vulnerable? |
|---|---|---|---|---|
| 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 | 1.1.13 | 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 | 1.2.9 | 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 |
| Application | gnu | gnutls | 1.4.2 | Yes |
| Application | gnu | gnutls | 1.4.3 | Yes |
| Application | gnu | gnutls | 1.4.4 | Yes |
| Application | gnu | gnutls | 1.4.5 | Yes |
| Application | gnu | gnutls | 1.5.0 | Yes |
| Application | gnu | gnutls | 1.5.1 | Yes |
| Application | gnu | gnutls | 1.5.2 | Yes |
| Application | gnu | gnutls | 1.5.3 | Yes |
| Application | gnu | gnutls | 1.5.4 | Yes |
| Application | gnu | gnutls | 1.5.5 | Yes |
| Application | gnu | gnutls | 1.6.0 | Yes |
| Application | gnu | gnutls | 1.6.1 | Yes |
| Application | gnu | gnutls | 1.6.2 | Yes |
| Application | gnu | gnutls | 1.6.3 | Yes |
| Application | gnu | gnutls | 1.7.0 | Yes |
| Application | gnu | gnutls | 1.7.1 | Yes |
| Application | gnu | gnutls | 1.7.2 | Yes |
| Application | gnu | gnutls | 1.7.3 | Yes |
| Application | gnu | gnutls | 1.7.4 | Yes |
| Application | gnu | gnutls | 1.7.5 | Yes |
| Application | gnu | gnutls | 1.7.6 | Yes |
| Application | gnu | gnutls | 1.7.7 | Yes |
| Application | gnu | gnutls | 1.7.8 | Yes |
| Application | gnu | gnutls | 1.7.9 | Yes |
| Application | gnu | gnutls | 1.7.10 | Yes |
| Application | gnu | gnutls | 1.7.11 | Yes |
| Application | gnu | gnutls | 1.7.12 | Yes |
| Application | gnu | gnutls | 1.7.13 | Yes |
| Application | gnu | gnutls | 1.7.14 | Yes |
| Application | gnu | gnutls | 1.7.15 | Yes |
| Application | gnu | gnutls | 1.7.16 | Yes |
| Application | gnu | gnutls | 1.7.17 | Yes |
| Application | gnu | gnutls | 1.7.18 | Yes |
| Application | gnu | gnutls | 1.7.19 | Yes |
| Application | gnu | gnutls | 2.0.0 | Yes |
| Application | gnu | gnutls | 2.0.1 | Yes |
| Application | gnu | gnutls | 2.0.2 | Yes |
| Application | gnu | gnutls | 2.0.3 | Yes |
| Application | gnu | gnutls | 2.0.4 | Yes |
| Application | gnu | gnutls | 2.1.0 | Yes |
| Application | gnu | gnutls | 2.1.1 | Yes |
| Application | gnu | gnutls | 2.1.2 | Yes |
| Application | gnu | gnutls | 2.1.3 | Yes |
| Application | gnu | gnutls | 2.1.4 | Yes |
| Application | gnu | gnutls | 2.1.5 | Yes |
| Application | gnu | gnutls | 2.1.6 | Yes |
| Application | gnu | gnutls | 2.1.7 | Yes |
| Application | gnu | gnutls | 2.1.8 | Yes |
| Application | gnu | gnutls | 2.2.0 | Yes |
| Application | gnu | gnutls | 2.2.1 | Yes |
| Application | gnu | gnutls | 2.2.2 | Yes |
| Application | gnu | gnutls | 2.2.3 | Yes |
| Application | gnu | gnutls | 2.2.4 | Yes |
| Application | gnu | gnutls | 2.2.5 | Yes |
| Application | gnu | gnutls | 2.3.0 | Yes |
| Application | gnu | gnutls | 2.3.1 | Yes |
| Application | gnu | gnutls | 2.3.2 | Yes |
| Application | gnu | gnutls | 2.3.3 | Yes |
| Application | gnu | gnutls | 2.3.4 | Yes |
| Application | gnu | gnutls | 2.3.5 | Yes |
| Application | gnu | gnutls | 2.3.6 | Yes |
| Application | gnu | gnutls | 2.3.7 | Yes |
| Application | gnu | gnutls | 2.3.8 | Yes |
| Application | gnu | gnutls | 2.3.9 | Yes |
| Application | gnu | gnutls | 2.3.10 | Yes |
| Application | gnu | gnutls | 2.3.11 | Yes |