CVE-2008-1948

CVE Details

Release Date:	2008-05-21
Impact:	Critical	What is this?

Description

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.

See more information about CVE-2008-1948 from MITRE CVE dictionary and NIST NVD

NOTE: The following CVSS metrics and score provided are preliminary and subject to review.

CVSS v2 metrics

Base Score:	10.0
Vector String:	AV:N/AC:L/Au:N/C:C/I:C/A:C
Version:	2.0
Attack Vector:	Network
Attack Complexity:	Low
Authentication:	None
Confidentiality Impact:	Complete
Integrity Impact:	Complete
Availability Impact:	Complete

Errata information

Platform	Errata	Release Date
Oracle Enterprise Linux version 4 (gnutls)	ELSA-2008-0492	2008-05-20
Oracle Linux version 5 (gnutls)	ELSA-2008-0489	2008-05-20