CVE-2008-1948

The _gnutls_server_name_recv_params function in lib/ext_server_name.c in libgnutls in gnutls-serv in GnuTLS before 2.2.4 does not properly calculate the number of Server Names in a TLS 1.0 Client Hello message during extension handling, which allows remote attackers to cause a denial of service (crash) or possibly execute arbitrary code via a zero value for the length of Server Names, which leads to a buffer overflow in session resumption data in the pack_security_parameters function, aka GNUTLS-SA-2008-1-1.

🔗 References (80)

• secalert@redhathttp://git.savannah.gnu.org/gitweb/?p=gnutls.git%3Ba=commitdiff%3Bh=bc8102405fda11ea00ca3b42acc4f4bce9d6e97b
• secalert@redhathttp://lists.gnu.org/archive/html/gnutls-devel/2008-05/msg00051.html
• secalert@redhathttp://lists.gnu.org/archive/html/gnutls-devel/2008-05/msg00055.html
• secalert@redhathttp://lists.gnu.org/archive/html/gnutls-devel/2008-05/msg00060.html
• secalert@redhathttp://lists.opensuse.org/opensuse-security-announce/2008-09/msg00003.html
• secalert@redhathttp://secunia.com/advisories/30287
• secalert@redhathttp://secunia.com/advisories/30302
• secalert@redhathttp://secunia.com/advisories/30317
• secalert@redhathttp://secunia.com/advisories/30324
• secalert@redhathttp://secunia.com/advisories/30330
• secalert@redhathttp://secunia.com/advisories/30331
• secalert@redhathttp://secunia.com/advisories/30338
• secalert@redhathttp://secunia.com/advisories/30355
• secalert@redhathttp://secunia.com/advisories/31939
• secalert@redhathttp://security.gentoo.org/glsa/glsa-200805-20.xml