Debian DSA-1935-1 : gnutls13 gnutls26 - several vulnerabilities

high Nessus Plugin ID 44800

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Synopsis

The remote Debian host is missing a security-related update.

Description

Dan Kaminsky and Moxie Marlinspike discovered that gnutls, an implementation of the TLS/SSL protocol, does not properly handle a '\0' character in a domain name in the subject's Common Name or Subject Alternative Name (SAN) field of an X.509 certificate, which allows man-in-the-middle attackers to spoof arbitrary SSL servers via a crafted certificate issued by a legitimate Certification Authority.
(CVE-2009-2730 )

In addition, with this update, certificates with MD2 hash signatures are no longer accepted since they're no longer considered cryptograhically secure. It only affects the oldstable distribution (etch).(CVE-2009-2409 )

Solution

Upgrade the gnutls13/gnutls26 packages.

For the oldstable distribution (etch), these problems have been fixed in version 1.4.4-3+etch5 for gnutls13.

For the stable distribution (lenny), these problems have been fixed in version 2.4.2-6+lenny2 for gnutls26.

See Also

https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=541439

https://security-tracker.debian.org/tracker/CVE-2009-2730

https://security-tracker.debian.org/tracker/CVE-2009-2409

https://www.debian.org/security/2009/dsa-1935

Plugin Details

Severity: High

ID: 44800

File Name: debian_DSA-1935.nasl

Version: 1.12

Type: local

Agent: unix

Published: 2/24/2010

Updated: 1/4/2021

Dependencies: ssh_get_info.nasl

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 5.5

Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P

Temporal Vector: E:U/RL:OF/RC:C

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:gnutls13, p-cpe:/a:debian:debian_linux:gnutls26, cpe:/o:debian:debian_linux:4.0, cpe:/o:debian:debian_linux:5.0

Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l

Exploit Ease: No known exploits are available

Patch Publication Date: 11/17/2009

Reference Information

CVE: CVE-2009-2409, CVE-2009-2730

BID: 35952

DSA: 1935

CWE: 310