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

The Red Hat Security Response Team has rated this update as having moderate security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link in the References section.

The XML Security Library is a C library based on libxml2 and OpenSSL that implements the XML Digital Signature and XML Encryption standards.

A flaw was found in the way xmlsec1 handled XML files that contain an XSLT transformation specification. A specially crafted XML file could cause xmlsec1 to create or overwrite an arbitrary file while performing the verification of a file's digital signature.
(CVE-2011-1425)

Red Hat would like to thank Nicolas Gregoire and Aleksey Sanin for reporting this issue.

This update also fixes the following bug :

* xmlsec1 previously used an incorrect search path when searching for crypto plug-in libraries, possibly trying to access such libraries using a relative path. (BZ#558480, BZ#700467)

Users of xmlsec1 should upgrade to these updated packages, which contain backported patches to correct these issues. After installing the update, all running applications that use the xmlsec1 library must be restarted for the update to take effect.

A flaw was found in the way xmlsec1 handled XML files that contain an XSLT transformation specification. A specially crafted XML file could cause xmlsec1 to create or overwrite an arbitrary file while performing the verification of a file's digital signature.
(CVE-2011-1425)

After installing the update, all running applications that use the xmlsec1 library must be restarted for the update to take effect.

A vulnerability was discovered and corrected in xmlsec1 :

xslt.c in XML Security Library (aka xmlsec) before 1.2.17, as used in WebKit and other products, when XSLT is enabled, allows remote attackers to create or overwrite arbitrary files via vectors involving the libxslt output extension and a ds:Transform element during signature verification (CVE-2011-1425).

Packages for 2009.0 are provided as of the Extended Maintenance Program. Please visit this link to learn more:
http://store.mandriva.com/product_info.php?cPath=149 products_id=490

The updated packages have been patched to correct this issue.

The remote host is affected by the vulnerability described in GLSA-201412-09 (Multiple packages, Multiple vulnerabilities fixed in 2011)

    Vulnerabilities have been discovered in the packages listed below.
      Please review the CVE identifiers in the Reference section for details.
      FMOD Studio       PEAR Mail       LVM2       GnuCash       xine-lib       Last.fm Scrobbler       WebKitGTK+       shadow tool suite       PEAR       unixODBC       Resource Agents       mrouted       rsync       XML Security Library       xrdb       Vino       OProfile       syslog-ng       sFlow Toolkit       GNOME Display Manager       libsoup       CA Certificates       Gitolite       QtCreator       Racer   Impact :

    A context-dependent attacker may be able to gain escalated privileges,       execute arbitrary code, cause Denial of Service, obtain sensitive       information, or otherwise bypass security restrictions.
  Workaround :

    There are no known workarounds at this time.

The remote Redhat Enterprise Linux 4 / 5 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2011:0486 advisory.

    The XML Security Library is a C library based on libxml2 and OpenSSL that     implements the XML Digital Signature and XML Encryption standards.

    A flaw was found in the way xmlsec1 handled XML files that contain an XSLT     transformation specification. A specially-crafted XML file could cause     xmlsec1 to create or overwrite an arbitrary file while performing the     verification of a file's digital signature. (CVE-2011-1425)

    Red Hat would like to thank Nicolas Grgoire and Aleksey Sanin for     reporting this issue.

    This update also fixes the following bug:

    * xmlsec1 previously used an incorrect search path when searching for     crypto plug-in libraries, possibly trying to access such libraries using a     relative path. (BZ#558480, BZ#700467)

    Users of xmlsec1 should upgrade to these updated packages, which contain     backported patches to correct these issues. After installing the update,     all running applications that use the xmlsec1 library must be restarted for     the update to take effect.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Nicolas Gregoire discovered that the XML Security Library xmlsec allowed remote attackers to create or overwrite arbitrary files through specially crafted XML files using the libxslt output extension and a ds:Transform element during signature verification.

The remote Oracle Linux 5 host has packages installed that are affected by a vulnerability as referenced in the ELSA-2011-0486 advisory.

    - disable xslt i/o support in library, tools and examples, CVE-2011-1425

Tenable has extracted the preceding description block directly from the Oracle Linux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

ID	Name	Product	Family	Published	Updated	Severity
53813	CentOS 4 / 5 : xmlsec1 (CESA-2011:0486)	Nessus	CentOS Local Security Checks	5/6/2011	1/4/2021	medium
61032	Scientific Linux Security Update : xmlsec1 on SL4.x, SL5.x i386/x86_64	Nessus	Scientific Linux Local Security Checks	8/1/2012	1/14/2021	medium
53289	Mandriva Linux Security Advisory : xmlsec1 (MDVSA-2011:063)	Nessus	Mandriva Local Security Checks	4/5/2011	1/6/2021	medium
79962	GLSA-201412-09 : Multiple packages, Multiple vulnerabilities fixed in 2011	Nessus	Gentoo Local Security Checks	12/15/2014	1/6/2021	critical
53646	RHEL 4 / 5 : xmlsec1 (RHSA-2011:0486)	Nessus	Red Hat Local Security Checks	5/5/2011	11/4/2024	high
53477	Debian DSA-2219-1 : xmlsec1 - arbitrary file overwrite	Nessus	Debian Local Security Checks	4/19/2011	1/4/2021	medium
68269	Oracle Linux 5 : xmlsec1 (ELSA-2011-0486)	Nessus	Oracle Linux Local Security Checks	7/12/2013	10/22/2024	high

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