Issued:

2009-09-08

Updated:

2009-09-08

RHSA-2009:1428 - Moderate: xmlsec1 security update

Synopsis

Moderate: xmlsec1 security update

Type/Severity

Security Advisory Moderate

Topic

Updated xmlsec1 packages that fix one security issue are now available for Red Hat Enterprise Linux 4 and 5.

This update has been rated as having moderate security impact by the Red Hat Security Response Team.

Description

The XML Security Library is a C library based on libxml2 and OpenSSL. It implements the XML Signature Syntax and Processing and XML Encryption Syntax and Processing standards. HMAC is used for message authentication using cryptographic hash functions. The HMAC algorithm allows the hash output to be truncated (as documented in RFC 2104).

A missing check for the recommended minimum length of the truncated form of HMAC-based XML signatures was found in xmlsec1. An attacker could use this flaw to create a specially-crafted XML file that forges an XML signature, allowing the attacker to bypass authentication that is based on the XML Signature specification. (CVE-2009-0217)

Users of xmlsec1 should upgrade to these updated packages, which contain a backported patch to correct this issue. After installing the updated packages, applications that use the XML Security Library must be restarted for the update to take effect.

Solution

Before applying this update, make sure that all previously-released errata relevant to your system have been applied.

This update is available via Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at This content is not included.http://kbase.redhat.com/faq/docs/DOC-11259

Affected Products

Updated Packages

• xmlsec1-1.2.6-3.1.ia64.rpm
• xmlsec1-gnutls-1.2.9-8.1.1.x86_64.rpm
• xmlsec1-openssl-1.2.6-3.1.i386.rpm
• xmlsec1-devel-1.2.9-8.1.1.ppc.rpm
• xmlsec1-devel-1.2.6-3.1.x86_64.rpm
• xmlsec1-openssl-devel-1.2.6-3.1.s390x.rpm
• xmlsec1-1.2.9-8.1.1.i386.rpm
• xmlsec1-gnutls-devel-1.2.9-8.1.1.i386.rpm
• xmlsec1-gnutls-1.2.9-8.1.1.i386.rpm
• xmlsec1-1.2.9-8.1.1.x86_64.rpm
• xmlsec1-openssl-devel-1.2.9-8.1.1.ia64.rpm
• xmlsec1-1.2.6-3.1.s390.rpm
• xmlsec1-openssl-1.2.6-3.1.s390.rpm
• xmlsec1-openssl-1.2.9-8.1.1.ppc.rpm
• xmlsec1-nss-devel-1.2.9-8.1.1.s390.rpm
• xmlsec1-devel-1.2.9-8.1.1.ia64.rpm
• xmlsec1-gnutls-1.2.9-8.1.1.s390.rpm
• xmlsec1-openssl-1.2.6-3.1.x86_64.rpm
• xmlsec1-nss-devel-1.2.9-8.1.1.i386.rpm
• xmlsec1-openssl-1.2.6-3.1.s390x.rpm
• xmlsec1-openssl-1.2.9-8.1.1.i386.rpm
• xmlsec1-gnutls-1.2.9-8.1.1.ppc64.rpm
• xmlsec1-gnutls-devel-1.2.9-8.1.1.s390x.rpm
• xmlsec1-1.2.9-8.1.1.ia64.rpm
• xmlsec1-nss-1.2.9-8.1.1.ppc64.rpm
• xmlsec1-devel-1.2.9-8.1.1.s390.rpm
• xmlsec1-devel-1.2.6-3.1.ppc.rpm
• xmlsec1-devel-1.2.9-8.1.1.s390x.rpm
• xmlsec1-openssl-devel-1.2.9-8.1.1.i386.rpm
• xmlsec1-gnutls-devel-1.2.9-8.1.1.ia64.rpm
• xmlsec1-openssl-1.2.9-8.1.1.ppc64.rpm
• xmlsec1-openssl-devel-1.2.9-8.1.1.s390x.rpm
• xmlsec1-openssl-devel-1.2.9-8.1.1.ppc.rpm
• xmlsec1-gnutls-1.2.9-8.1.1.ia64.rpm
• xmlsec1-openssl-1.2.9-8.1.1.ia64.rpm
• xmlsec1-nss-devel-1.2.9-8.1.1.x86_64.rpm
• xmlsec1-1.2.9-8.1.1.ppc.rpm
• xmlsec1-gnutls-devel-1.2.9-8.1.1.x86_64.rpm
• xmlsec1-gnutls-devel-1.2.9-8.1.1.ppc.rpm
• xmlsec1-1.2.9-8.1.1.ppc64.rpm
• xmlsec1-openssl-1.2.6-3.1.ppc.rpm
• xmlsec1-1.2.6-3.1.ppc.rpm
• xmlsec1-openssl-1.2.6-3.1.ppc64.rpm
• xmlsec1-openssl-1.2.9-8.1.1.s390.rpm
• xmlsec1-nss-1.2.9-8.1.1.i386.rpm
• xmlsec1-1.2.9-8.1.1.s390x.rpm
• xmlsec1-devel-1.2.6-3.1.i386.rpm
• xmlsec1-openssl-devel-1.2.6-3.1.ppc.rpm
• xmlsec1-openssl-devel-1.2.9-8.1.1.s390.rpm
• xmlsec1-openssl-devel-1.2.6-3.1.ia64.rpm
• xmlsec1-openssl-1.2.9-8.1.1.s390x.rpm
• xmlsec1-openssl-devel-1.2.9-8.1.1.x86_64.rpm
• xmlsec1-openssl-devel-1.2.6-3.1.s390.rpm
• xmlsec1-1.2.6-3.1.ppc64.rpm
• xmlsec1-devel-1.2.6-3.1.s390.rpm
• xmlsec1-gnutls-1.2.9-8.1.1.s390x.rpm
• xmlsec1-nss-1.2.9-8.1.1.s390.rpm
• xmlsec1-devel-1.2.9-8.1.1.x86_64.rpm
• xmlsec1-nss-1.2.9-8.1.1.ia64.rpm
• xmlsec1-openssl-devel-1.2.6-3.1.i386.rpm
• xmlsec1-nss-devel-1.2.9-8.1.1.s390x.rpm
• xmlsec1-1.2.6-3.1.x86_64.rpm
• xmlsec1-1.2.6-3.1.s390x.rpm
• xmlsec1-1.2.9-8.1.1.src.rpm
• xmlsec1-gnutls-devel-1.2.9-8.1.1.s390.rpm
• xmlsec1-nss-1.2.9-8.1.1.ppc.rpm
• xmlsec1-devel-1.2.9-8.1.1.i386.rpm
• xmlsec1-devel-1.2.6-3.1.ia64.rpm
• xmlsec1-gnutls-1.2.9-8.1.1.ppc.rpm
• xmlsec1-openssl-1.2.9-8.1.1.x86_64.rpm
• xmlsec1-1.2.6-3.1.i386.rpm
• xmlsec1-nss-devel-1.2.9-8.1.1.ppc.rpm
• xmlsec1-devel-1.2.6-3.1.s390x.rpm
• xmlsec1-openssl-devel-1.2.6-3.1.x86_64.rpm
• xmlsec1-nss-1.2.9-8.1.1.x86_64.rpm
• xmlsec1-openssl-devel-1.2.9-8.1.1.ppc64.rpm
• xmlsec1-nss-1.2.9-8.1.1.s390x.rpm
• xmlsec1-1.2.6-3.1.src.rpm
• xmlsec1-openssl-1.2.6-3.1.ia64.rpm
• xmlsec1-1.2.9-8.1.1.s390.rpm
• xmlsec1-gnutls-devel-1.2.9-8.1.1.ppc64.rpm
• xmlsec1-nss-devel-1.2.9-8.1.1.ppc64.rpm
• xmlsec1-devel-1.2.9-8.1.1.ppc64.rpm
• xmlsec1-nss-devel-1.2.9-8.1.1.ia64.rpm

Fixes

• This content is not included.BZ - 511915

CVEs

• CVE-2009-0217

References

• http://www.redhat.com/security/updates/classification/#moderate
• Content from www.w3.org is not included.Content from www.w3.org is not included.http://www.w3.org/TR/xmldsig-core/
• Content from tools.ietf.org is not included.Content from tools.ietf.org is not included.http://tools.ietf.org/html/rfc2104

Additional information

• The Red Hat security contact is This content is not included.secalert@redhat.com. More contact details at https://access.redhat.com/security/team/contact/.
• Offline Security Data data is available for integration with other systems. See Offline Security Data API to get started.