Mandriva Linux Security Advisory : gnutls (MDVSA-2015:072)

medium Nessus Plugin ID 82325
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Synopsis

The remote Mandriva Linux host is missing one or more security updates.

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).

Solution

Update the affected packages.

See Also

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

Plugin Details

Severity: Medium

ID: 82325

File Name: mandriva_MDVSA-2015-072.nasl

Version: 1.4

Type: local

Published: 3/30/2015

Updated: 1/6/2021

Dependencies: ssh_get_info.nasl

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: Medium

Base Score: 6.8

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

Vulnerability Information

CPE: p-cpe:/a:mandriva:linux:gnutls, p-cpe:/a:mandriva:linux:lib64gnutls-devel, p-cpe:/a:mandriva:linux:lib64gnutls-ssl27, p-cpe:/a:mandriva:linux:lib64gnutls-xssl0, p-cpe:/a:mandriva:linux:lib64gnutls28, cpe:/o:mandriva:business_server:2

Required KB Items: Host/local_checks_enabled, Host/cpu, Host/Mandrake/release, Host/Mandrake/rpm-list

Patch Publication Date: 3/27/2015

Reference Information

CVE: CVE-2014-0092, CVE-2014-1959, CVE-2014-3465, CVE-2014-3466, CVE-2014-8564

MDVSA: 2015:072