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Sicherheit: Mehrere Probleme in gnutls
Aktuelle Meldungen Distributionen
Name: Mehrere Probleme in gnutls
ID: MDVSA-2015:072
Distribution: Mandriva
Plattformen: Mandriva Business Server 2.0
Datum: Fr, 27. März 2015, 18:40
Referenzen: http://advisories.mageia.org/MGASA-2014-0077.html
http://advisories.mageia.org/MGASA-2014-0117.html
http://advisories.mageia.org/MGASA-2014-0248.html
http://advisories.mageia.org/MGASA-2014-0458.html
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-0092
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-1959
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-3465
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-3466
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-8564

Originalnachricht

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_______________________________________________________________________

Mandriva Linux Security Advisory MDVSA-2015:072
http://www.mandriva.com/en/support/security/
_______________________________________________________________________

Package : gnutls
Date : March 27, 2015
Affected: Business Server 2.0
_______________________________________________________________________

Problem Description:

Updated gnutls packages fix security vulnerabilities:

Suman Jana reported a vulnerability that affects the certificate
verification functions of gnutls 3.1.x and gnutls 3.2.x. A version
1 intermediate certificate will be considered as a CA certificate
by default (something that deviates from the documented behavior)
(CVE-2014-1959).

It was discovered that GnuTLS did not correctly handle certain errors
that could occur during the verification of an X.509 certificate,
causing it to incorrectly report a successful verification. An attacker
could use this flaw to create a specially crafted certificate that
could be accepted by GnuTLS as valid for a site chosen by the attacker
(CVE-2014-0092).

A NULL pointer dereference flaw was discovered in GnuTLS's
gnutls_x509_dn_oid_name(). The function, when called with the
GNUTLS_X509_DN_OID_RETURN_OID flag, should not return NULL to its
caller. However, it could previously return NULL when parsed X.509
certificates included specific OIDs (CVE-2014-3465).

A flaw was found in the way GnuTLS parsed session ids from Server
Hello packets of the TLS/SSL handshake. A malicious server could use
this flaw to send an excessively long session id value and trigger a
buffer overflow in a connecting TLS/SSL client using GnuTLS, causing
it to crash or, possibly, execute arbitrary code (CVE-2014-3466).

An out-of-bounds memory write flaw was found in the way GnuTLS
parsed certain ECC (Elliptic Curve Cryptography) certificates or
certificate signing requests (CSR). A malicious user could create a
specially crafted ECC certificate or a certificate signing request
that, when processed by an application compiled against GnuTLS (for
example, certtool), could cause that application to crash or execute
arbitrary code with the permissions of the user running the application
(CVE-2014-8564).
_______________________________________________________________________

References:

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-0092
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-1959
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-3465
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-3466
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-8564
http://advisories.mageia.org/MGASA-2014-0077.html
http://advisories.mageia.org/MGASA-2014-0117.html
http://advisories.mageia.org/MGASA-2014-0248.html
http://advisories.mageia.org/MGASA-2014-0458.html
_______________________________________________________________________

Updated Packages:

Mandriva Business Server 2/X86_64:
b239be2e5451b8a248f3fafc39c8a368 mbs2/x86_64/gnutls-3.2.7-2.1.mbs2.x86_64.rpm
75483984c673db0830e6b848f38139f6
mbs2/x86_64/lib64gnutls28-3.2.7-2.1.mbs2.x86_64.rpm
03dee0e97f9f581a7c95cf9964718b80
mbs2/x86_64/lib64gnutls-devel-3.2.7-2.1.mbs2.x86_64.rpm
9c2c4c1da7626e6ca30fa153cc4f59fd
mbs2/x86_64/lib64gnutls-ssl27-3.2.7-2.1.mbs2.x86_64.rpm
22ee1f810b74ff75be0a21cddc62adf5
mbs2/x86_64/lib64gnutls-xssl0-3.2.7-2.1.mbs2.x86_64.rpm
54b2549475fd9f9992d716cf6b731bb9 mbs2/SRPMS/gnutls-3.2.7-2.1.mbs2.src.rpm
_______________________________________________________________________

To upgrade automatically use MandrivaUpdate or urpmi. The verification
of md5 checksums and GPG signatures is performed automatically for you.

All packages are signed by Mandriva for security. You can obtain the
GPG public key of the Mandriva Security Team by executing:

gpg --recv-keys --keyserver pgp.mit.edu 0x22458A98

You can view other update advisories for Mandriva Linux at:

http://www.mandriva.com/en/support/security/advisories/

If you want to report vulnerabilities, please contact

security_(at)_mandriva.com
_______________________________________________________________________

Type Bits/KeyID Date User ID
pub 1024D/22458A98 2000-07-10 Mandriva Security Team
<security*mandriva.com>
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_______________________________________________________
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_______________________________________________________


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