Mandriva Linux Security Advisory 2014-108 - 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. 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.
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Mandriva Linux Security Advisory MDVSA-2014:108
http://www.mandriva.com/en/support/security/
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Package : gnutls
Date : June 9, 2014
Affected: Business Server 1.0
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Problem Description:
Updated gnutls packages fix security vulnerabilities:
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).
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References:
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://advisories.mageia.org/MGASA-2014-0248.html
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Updated Packages:
Mandriva Business Server 1/X86_64:
e9d619b4d917c9e322c43e1589e00cf9 mbs1/x86_64/gnutls-3.0.28-1.7.mbs1.x86_64.rpm
ba96fe08901ad527c4a9be1985429301 mbs1/x86_64/lib64gnutls28-3.0.28-1.7.mbs1.x86_64.rpm
dacba924eeafab91fd6215da5820c11e mbs1/x86_64/lib64gnutls-devel-3.0.28-1.7.mbs1.x86_64.rpm
bbbdad730440b4fdfa1d1903c90f008d mbs1/x86_64/lib64gnutls-ssl27-3.0.28-1.7.mbs1.x86_64.rpm
169be2c8e116c6e639ca981233ef3b7a mbs1/SRPMS/gnutls-3.0.28-1.7.mbs1.src.rpm
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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
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Type Bits/KeyID Date User ID
pub 1024D/22458A98 2000-07-10 Mandriva Security Team
<security*mandriva.com>
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