Detections
Analytics
GLSA-200805-20 : GnuTLS: Execution of arbitrary code
critical Nessus Plugin ID 32418
Synopsis
The remote Gentoo host is missing one or more security-related patches.Description
The remote host is affected by the vulnerability described in GLSA-200805-20 (GnuTLS: Execution of arbitrary code)Ossi Herrala and Jukka Taimisto of Codenomicon reported three vulnerabilities in libgnutls of GnuTLS:
'Client Hello' messages containing an invalid server name can lead to a buffer overflow when evaluating 'Security Parameters' (CVE-2008-1948).
Multiple 'Client Hello' messages can lead to a NULL pointer dereference (CVE-2008-1949).
A TLS handshake including an encrypted 'Client Hello' message and an invalid record length could lead to a buffer overread (CVE-2008-1950).
Impact :
Unauthenticated remote attackers could exploit these vulnerabilities to cause Denial of Service conditions in daemons using GnuTLS. The first vulnerability (CVE-2008-1948) might allow for the execution of arbitrary code with the privileges of the daemon handling incoming TLS connections.
Workaround :
There is no known workaround at this time.
Solution
All GnuTLS users should upgrade to the latest version:# emerge --sync # emerge --ask --oneshot --verbose '>=net-libs/gnutls-2.2.5'
See Also
Plugin Details
Severity: Critical
ID: 32418
File Name: gentoo_GLSA-200805-20.nasl
Version: 1.15
Type: local
Family: Gentoo Local Security Checks
Published: 5/22/2008
Updated: 1/6/2021
Supported Sensors: Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 6.7
CVSS v2
Risk Factor: Critical
Base Score: 10
Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C
Vulnerability Information
CPE: p-cpe:/a:gentoo:linux:gnutls, cpe:/o:gentoo:linux
Required KB Items: Host/local_checks_enabled, Host/Gentoo/release, Host/Gentoo/qpkg-list
Patch Publication Date: 5/21/2008