gnutls security update

1.4.1-3.5 - fix NUL characters in DN and SAN cert fields issue, make sure gnutlsx509crtcheckhostname fails when certificate has no CN or SAN CVE-2009-2730 516231...

Mandriva Linux Security Advisory : gnutls (MDVSA-2009:210)

A vulnerability have been discovered and corrected in GnuTLS before 2.8.2, which could allow man-in-the-middle attackers to spoof arbitrary SSL servers via a crafted certificate issued by a legitimate Certification Authority CVE-2009-2730. This update fixes this vulnerability. %NASLMINLEVEL 70300...

Design/Logic Flaw

neon before 0.28.6, when OpenSSL or GnuTLS is used, does not properly handle a '\0' character in a domain name in the subject's Common Name CN 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...

CVE-2009-2474

neon before 0.28.6, when OpenSSL or GnuTLS is used, does not properly handle a '\0' character in a domain name in the subject's Common Name CN 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...

CVE-2009-2474

CVE-2009-2474 affects neon prior to 0.28.6 when using OpenSSL or GnuTLS. The root cause is improper handling of a '\0' character in the domain name in the X.509 certificate CN field, enabling MITM spoofing of SSL servers via a certificate issued by a legitimate CA. Impact per the entry is partial...

CVE-2009-2474

neon before 0.28.6, when OpenSSL or GnuTLS is used, does not properly handle a '\0' character in a domain name in the subject's Common Name CN 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...

CVE-2009-2474

neon before 0.28.6, when OpenSSL or GnuTLS is used, does not properly handle a '\0' character in a domain name in the subject's Common Name CN 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...

CVE-2009-2474

neon before 0.28.6, when OpenSSL or GnuTLS is used, does not properly handle a '\0' character in a domain name in the subject's Common Name CN 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...

[USN-809-1] GnuTLS vulnerabilities

=========================================================== Ubuntu Security Notice USN-809-1 August 19, 2009 gnutls12, gnutls13, gnutls26 vulnerabilities CVE-2009-2409, CVE-2009-2730, https://launchpad.net/bugs/305264 =========================================================== A security issue...

FreeBSD : GnuTLS -- multiple vulnerabilities (b31a1088-460f-11de-a11a-0022156e8794)

SecurityFocus reports : GnuTLS is prone to multiple remote vulnerabilities : - A remote code-execution vulnerability. - A denial-of-service vulnerability. - A signature-generation vulnerability. - A signature-verification vulnerability. An attacker can exploit these issues to potentially execute...

Ubuntu 6.06 LTS / 8.04 LTS / 8.10 / 9.04 : gnutls12, gnutls13, gnutls26 vulnerabilities (USN-809-1)

Moxie Marlinspike and Dan Kaminsky independently discovered that GnuTLS did not properly handle certificates with NULL characters in the certificate name. An attacker could exploit this to perform a man in the middle attack to view sensitive information or alter encrypted communications...

GnuTLS library certificate spoofing

It's possible to spoof cerificate name with NULL byte; weak MD2-hashed signatures are accepted...

FreeBSD : GnuTLS -- improper SSL certificate verification (856a6f84-8b30-11de-8062-00e0815b8da8)

GnuTLS reports : By using a NUL byte in CN/SAN fields, it was possible to fool GnuTLS into 1 not printing the entire CN/SAN field value when printing a certificate and 2 cause incorrect positive matches when matching a hostname against a certificate. %NASLMINLEVEL 70300 C Tenable Network Security...

USN-809-1: GnuTLS vulnerabilities

Moxie Marlinspike and Dan Kaminsky independently discovered that GnuTLS did not properly handle certificates with NULL characters in the certificate name. An attacker could exploit this to perform a machine-in-the-middle attack to view sensitive information or alter encrypted communications...

CVE-2009-2730

libgnutls in GnuTLS before 2.8.2 does not properly handle a '\0' character in a domain name in the subject's 1 Common Name CN or 2 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 b...

Design/Logic Flaw

libgnutls in GnuTLS before 2.8.2 does not properly handle a '\0' character in a domain name in the subject's 1 Common Name CN or 2 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 b...

CVE-2009-2730

libgnutls in GnuTLS before 2.8.2 does not properly handle a '\0' character in a domain name in the subject's 1 Common Name CN or 2 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 b...

GnuTLS -- improper SSL certificate verification

GnuTLS reports: By using a NUL byte in CN/SAN fields, it was possible to fool GnuTLS into 1 not printing the entire CN/SAN field value when printing a certificate and 2 cause incorrect positive matches when matching a hostname against a certificate...

OpenSSL/GnuTLS SSL Server Spoofing Vulnerability - Windows

OpenSSL/GnuTLS is prone to an SSL server spoofing vulnerability. SPDX-FileCopyrightText: 2009 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

Code injection

The Network Security Services NSS library before 3.12.3, as used in Firefox; GnuTLS before 2.6.4 and 2.7.4; OpenSSL 0.9.8 through 0.9.8k; and other products support MD2 with X.509 certificates, which might allow remote attackers to spoof certificates by using MD2 design flaws to generate a hash...