Red Hat Security Advisory: mingw32-libxml2 security update Security Advisory secalert@redhat.com Red Hat Security Response Team RHSA-2013:0217 Final 1 1 2013-01-31T19:09:00Z Current version 2013-01-31T19:09:00Z 2013-01-31T19:09:00Z Red Hat rhsa-to-cvrf 1.0.1484 2013-01-31T19:35:02Z Updated mingw32-libxml2 packages that fix several security issues are now available for Red Hat Enterprise Linux 6. This advisory also contains information about future updates for the mingw32 packages, as well as the deprecation of the packages with the release of Red Hat Enterprise Linux 6.4. The Red Hat Security Response Team has rated this update as having important security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section. These packages provide the libxml2 library, a development toolbox providing the implementation of various XML standards, for users of MinGW (Minimalist GNU for Windows). IMPORTANT NOTE: The mingw32 packages in Red Hat Enterprise Linux 6 will no longer be updated proactively and will be deprecated with the release of Red Hat Enterprise Linux 6.4. These packages were provided to support other capabilities in Red Hat Enterprise Linux and were not intended for direct customer use. Customers are advised to not use these packages with immediate effect. Future updates to these packages will be at Red Hat's discretion and these packages may be removed in a future minor release. A heap-based buffer overflow flaw was found in the way libxml2 decoded entity references with long names. A remote attacker could provide a specially-crafted XML file that, when opened in an application linked against libxml2, would cause the application to crash or, potentially, execute arbitrary code with the privileges of the user running the application. (CVE-2011-3919) A heap-based buffer underflow flaw was found in the way libxml2 decoded certain entities. A remote attacker could provide a specially-crafted XML file that, when opened in an application linked against libxml2, would cause the application to crash or, potentially, execute arbitrary code with the privileges of the user running the application. (CVE-2012-5134) It was found that the hashing routine used by libxml2 arrays was susceptible to predictable hash collisions. Sending a specially-crafted message to an XML service could result in longer processing time, which could lead to a denial of service. To mitigate this issue, randomization has been added to the hashing function to reduce the chance of an attacker successfully causing intentional collisions. (CVE-2012-0841) Multiple flaws were found in the way libxml2 parsed certain XPath (XML Path Language) expressions. If an attacker were able to supply a specially-crafted XML file to an application using libxml2, as well as an XPath expression for that application to run against the crafted file, it could cause the application to crash. (CVE-2010-4008, CVE-2010-4494, CVE-2011-2821, CVE-2011-2834) Two heap-based buffer overflow flaws were found in the way libxml2 decoded certain XML files. A remote attacker could provide a specially-crafted XML file that, when opened in an application linked against libxml2, would cause the application to crash or, potentially, execute arbitrary code with the privileges of the user running the application. (CVE-2011-0216, CVE-2011-3102) An integer overflow flaw, leading to a heap-based buffer overflow, was found in the way libxml2 parsed certain XPath expressions. If an attacker were able to supply a specially-crafted XML file to an application using libxml2, as well as an XPath expression for that application to run against the crafted file, it could cause the application to crash or, possibly, execute arbitrary code. (CVE-2011-1944) An out-of-bounds memory read flaw was found in libxml2. A remote attacker could provide a specially-crafted XML file that, when opened in an application linked against libxml2, would cause the application to crash. (CVE-2011-3905) Red Hat would like to thank the Google Security Team for reporting the CVE-2010-4008 issue. Upstream acknowledges Bui Quang Minh from Bkis as the original reporter of CVE-2010-4008. All users of mingw32-libxml2 are advised to upgrade to these updated packages, which contain backported patches to correct these issues. Please see https://www.redhat.com/footer/terms-of-use.html Copyright © 2013 Red Hat, Inc. All rights reserved. Important https://rhn.redhat.com/errata/RHSA-2013-0217.html https://rhn.redhat.com/errata/RHSA-2013-0217.html https://access.redhat.com/security/updates/classification/#important https://access.redhat.com/security/updates/classification/#important Red Hat Enterprise Linux HPC Node Optional (v. 6) Red Hat Enterprise Linux Desktop Optional (v. 6) Red Hat Enterprise Linux Workstation Optional (v. 6) Red Hat Enterprise Linux Server Optional (v. 6) mingw32-libxml2-2.7.6-6.el6_3.src.rpm mingw32-libxml2-2.7.6-6.el6_3 as a component of Red Hat Enterprise Linux HPC Node Optional (v. 6) mingw32-libxml2-2.7.6-6.el6_3 as a component of Red Hat Enterprise Linux Desktop Optional (v. 6) mingw32-libxml2-2.7.6-6.el6_3 as a component of Red Hat Enterprise Linux Workstation Optional (v. 6) mingw32-libxml2-2.7.6-6.el6_3 as a component of Red Hat Enterprise Linux Server Optional (v. 6) Multiple flaws were found in the way libxml2 parsed certain XPath (XML Path Language) expressions. If an attacker were able to supply a specially-crafted XML file to an application using libxml2, as well as an XPath expression for that application to run against the crafted file, it could cause the application to crash. 2010-10-18T00:00:00Z 2010-11-04T00:00:00Z CVE-2010-4008 6Client-optional-6.3.z:mingw32-libxml2-2.7.6-6.el6_3 6ComputeNode-optional-6.3.z:mingw32-libxml2-2.7.6-6.el6_3 6Server-optional-6.3.z:mingw32-libxml2-2.7.6-6.el6_3 6Workstation-optional-6.3.z:mingw32-libxml2-2.7.6-6.el6_3 Low 4.3 AV:N/AC:M/Au:N/C:N/I:N/A:P Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/knowledge/articles/11258 https://rhn.redhat.com/errata/RHSA-2013-0217.html https://www.redhat.com/security/data/cve/CVE-2010-4008.html CVE-2010-4008 https://bugzilla.redhat.com/show_bug.cgi?id=645341 bz#645341: CVE-2010-4008 libxml2: Crash (stack frame overflow or NULL pointer dereference) by traversal of XPath axis Red Hat would like to thank the Google Security Team for reporting this issue. Upstream acknowledges Bui Quang Minh from Bkis as the original reporter. Multiple flaws were found in the way libxml2 parsed certain XPath (XML Path Language) expressions. If an attacker were able to supply a specially-crafted XML file to an application using libxml2, as well as an XPath expression for that application to run against the crafted file, it could cause the application to crash. 2010-12-07T00:00:00Z 2010-11-17T00:00:00Z CVE-2010-4494 6Client-optional-6.3.z:mingw32-libxml2-2.7.6-6.el6_3 6ComputeNode-optional-6.3.z:mingw32-libxml2-2.7.6-6.el6_3 6Server-optional-6.3.z:mingw32-libxml2-2.7.6-6.el6_3 6Workstation-optional-6.3.z:mingw32-libxml2-2.7.6-6.el6_3 Low 4.3 AV:N/AC:M/Au:N/C:N/I:N/A:P Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/knowledge/articles/11258 https://rhn.redhat.com/errata/RHSA-2013-0217.html https://www.redhat.com/security/data/cve/CVE-2010-4494.html CVE-2010-4494 https://bugzilla.redhat.com/show_bug.cgi?id=665963 bz#665963: CVE-2010-4494 libxml2: double-free in XPath processing code Two heap-based buffer overflow flaws were found in the way libxml2 decoded certain XML files. A remote attacker could provide a specially-crafted XML file that, when opened in an application linked against libxml2, would cause the application to crash or, potentially, execute arbitrary code with the privileges of the user running the application. 2011-07-21T00:00:00Z 2011-07-20T00:00:00Z CVE-2011-0216 6Client-optional-6.3.z:mingw32-libxml2-2.7.6-6.el6_3 6ComputeNode-optional-6.3.z:mingw32-libxml2-2.7.6-6.el6_3 6Server-optional-6.3.z:mingw32-libxml2-2.7.6-6.el6_3 6Workstation-optional-6.3.z:mingw32-libxml2-2.7.6-6.el6_3 Low 5.1 AV:N/AC:H/Au:N/C:P/I:P/A:P Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/knowledge/articles/11258 https://rhn.redhat.com/errata/RHSA-2013-0217.html https://www.redhat.com/security/data/cve/CVE-2011-0216.html CVE-2011-0216 https://bugzilla.redhat.com/show_bug.cgi?id=724906 bz#724906: CVE-2011-0216 libxml2: Off-by-one error leading to heap-based buffer overflow in encoding An integer overflow flaw, leading to a heap-based buffer overflow, was found in the way libxml2 parsed certain XPath expressions. If an attacker were able to supply a specially-crafted XML file to an application using libxml2, as well as an XPath expression for that application to run against the crafted file, it could cause the application to crash or, possibly, execute arbitrary code. 2011-05-31T00:00:00Z 2011-05-27T00:00:00Z CVE-2011-1944 6Client-optional-6.3.z:mingw32-libxml2-2.7.6-6.el6_3 6ComputeNode-optional-6.3.z:mingw32-libxml2-2.7.6-6.el6_3 6Server-optional-6.3.z:mingw32-libxml2-2.7.6-6.el6_3 6Workstation-optional-6.3.z:mingw32-libxml2-2.7.6-6.el6_3 Low 5.1 AV:N/AC:H/Au:N/C:P/I:P/A:P Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/knowledge/articles/11258 https://rhn.redhat.com/errata/RHSA-2013-0217.html https://www.redhat.com/security/data/cve/CVE-2011-1944.html CVE-2011-1944 https://bugzilla.redhat.com/show_bug.cgi?id=709747 bz#709747: CVE-2011-1944 libxml, libxml2: Heap-based buffer overflow by adding new namespace node to an existing nodeset or merging nodesets Multiple flaws were found in the way libxml2 parsed certain XPath (XML Path Language) expressions. If an attacker were able to supply a specially-crafted XML file to an application using libxml2, as well as an XPath expression for that application to run against the crafted file, it could cause the application to crash. 2011-08-22T00:00:00Z 2011-08-22T00:00:00Z CVE-2011-2821 6Client-optional-6.3.z:mingw32-libxml2-2.7.6-6.el6_3 6ComputeNode-optional-6.3.z:mingw32-libxml2-2.7.6-6.el6_3 6Server-optional-6.3.z:mingw32-libxml2-2.7.6-6.el6_3 6Workstation-optional-6.3.z:mingw32-libxml2-2.7.6-6.el6_3 Low 4.3 AV:N/AC:M/Au:N/C:N/I:N/A:P Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/knowledge/articles/11258 https://rhn.redhat.com/errata/RHSA-2013-0217.html https://www.redhat.com/security/data/cve/CVE-2011-2821.html CVE-2011-2821 https://bugzilla.redhat.com/show_bug.cgi?id=735712 bz#735712: CVE-2011-2821 libxml2: double free caused by malformed XPath expression in XSLT Multiple flaws were found in the way libxml2 parsed certain XPath (XML Path Language) expressions. If an attacker were able to supply a specially-crafted XML file to an application using libxml2, as well as an XPath expression for that application to run against the crafted file, it could cause the application to crash. 2011-09-05T00:00:00Z 2011-10-11T00:00:00Z CVE-2011-2834 6Client-optional-6.3.z:mingw32-libxml2-2.7.6-6.el6_3 6ComputeNode-optional-6.3.z:mingw32-libxml2-2.7.6-6.el6_3 6Server-optional-6.3.z:mingw32-libxml2-2.7.6-6.el6_3 6Workstation-optional-6.3.z:mingw32-libxml2-2.7.6-6.el6_3 Low 4.3 AV:N/AC:M/Au:N/C:N/I:N/A:P Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/knowledge/articles/11258 https://rhn.redhat.com/errata/RHSA-2013-0217.html https://www.redhat.com/security/data/cve/CVE-2011-2834.html CVE-2011-2834 https://bugzilla.redhat.com/show_bug.cgi?id=735751 bz#735751: CVE-2011-2834 libxml2: double-free caused by malformed XPath expression in XSLT Two heap-based buffer overflow flaws were found in the way libxml2 decoded certain XML files. A remote attacker could provide a specially-crafted XML file that, when opened in an application linked against libxml2, would cause the application to crash or, potentially, execute arbitrary code with the privileges of the user running the application. 2012-05-15T00:00:00Z 2012-05-15T00:00:00Z CVE-2011-3102 6Client-optional-6.3.z:mingw32-libxml2-2.7.6-6.el6_3 6ComputeNode-optional-6.3.z:mingw32-libxml2-2.7.6-6.el6_3 6Server-optional-6.3.z:mingw32-libxml2-2.7.6-6.el6_3 6Workstation-optional-6.3.z:mingw32-libxml2-2.7.6-6.el6_3 Low 5.1 AV:N/AC:H/Au:N/C:P/I:P/A:P Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/knowledge/articles/11258 https://rhn.redhat.com/errata/RHSA-2013-0217.html https://www.redhat.com/security/data/cve/CVE-2011-3102.html CVE-2011-3102 https://bugzilla.redhat.com/show_bug.cgi?id=822109 bz#822109: CVE-2011-3102 libxml: An off-by-one out-of-bounds write by XPointer part evaluation An out-of-bounds memory read flaw was found in libxml2. A remote attacker could provide a specially-crafted XML file that, when opened in an application linked against libxml2, would cause the application to crash. 2011-12-13T00:00:00Z 2011-12-13T00:00:00Z CVE-2011-3905 6Client-optional-6.3.z:mingw32-libxml2-2.7.6-6.el6_3 6ComputeNode-optional-6.3.z:mingw32-libxml2-2.7.6-6.el6_3 6Server-optional-6.3.z:mingw32-libxml2-2.7.6-6.el6_3 6Workstation-optional-6.3.z:mingw32-libxml2-2.7.6-6.el6_3 Low 4.3 AV:N/AC:M/Au:N/C:N/I:N/A:P Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/knowledge/articles/11258 https://rhn.redhat.com/errata/RHSA-2013-0217.html https://www.redhat.com/security/data/cve/CVE-2011-3905.html CVE-2011-3905 https://bugzilla.redhat.com/show_bug.cgi?id=767387 bz#767387: CVE-2011-3905 libxml2 out of bounds read A heap-based buffer overflow flaw was found in the way libxml2 decoded entity references with long names. A remote attacker could provide a specially-crafted XML file that, when opened in an application linked against libxml2, would cause the application to crash or, potentially, execute arbitrary code with the privileges of the user running the application. 2012-01-05T00:00:00Z 2012-01-06T00:00:00Z CVE-2011-3919 6Client-optional-6.3.z:mingw32-libxml2-2.7.6-6.el6_3 6ComputeNode-optional-6.3.z:mingw32-libxml2-2.7.6-6.el6_3 6Server-optional-6.3.z:mingw32-libxml2-2.7.6-6.el6_3 6Workstation-optional-6.3.z:mingw32-libxml2-2.7.6-6.el6_3 Important 6.8 AV:N/AC:M/Au:N/C:P/I:P/A:P Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/knowledge/articles/11258 https://rhn.redhat.com/errata/RHSA-2013-0217.html https://www.redhat.com/security/data/cve/CVE-2011-3919.html CVE-2011-3919 https://bugzilla.redhat.com/show_bug.cgi?id=771896 bz#771896: CVE-2011-3919 libxml2: Heap-based buffer overflow when decoding an entity reference with a long name It was found that the hashing routine used by libxml2 arrays was susceptible to predictable hash collisions. Sending a specially-crafted message to an XML service could result in longer processing time, which could lead to a denial of service. To mitigate this issue, randomization has been added to the hashing function to reduce the chance of an attacker successfully causing intentional collisions. 2012-01-16T00:00:00Z 2012-02-21T00:00:00Z CVE-2012-0841 6Client-optional-6.3.z:mingw32-libxml2-2.7.6-6.el6_3 6ComputeNode-optional-6.3.z:mingw32-libxml2-2.7.6-6.el6_3 6Server-optional-6.3.z:mingw32-libxml2-2.7.6-6.el6_3 6Workstation-optional-6.3.z:mingw32-libxml2-2.7.6-6.el6_3 Moderate 5.0 AV:N/AC:L/Au:N/C:N/I:N/A:P Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/knowledge/articles/11258 https://rhn.redhat.com/errata/RHSA-2013-0217.html https://www.redhat.com/security/data/cve/CVE-2012-0841.html CVE-2012-0841 https://bugzilla.redhat.com/show_bug.cgi?id=787067 bz#787067: CVE-2012-0841 libxml2: hash table collisions CPU usage DoS A heap-based buffer underflow flaw was found in the way libxml2 decoded certain entities. A remote attacker could provide a specially-crafted XML file that, when opened in an application linked against libxml2, would cause the application to crash or, potentially, execute arbitrary code with the privileges of the user running the application. 2012-11-26T00:00:00Z 2012-11-27T00:00:00Z CVE-2012-5134 6Client-optional-6.3.z:mingw32-libxml2-2.7.6-6.el6_3 6ComputeNode-optional-6.3.z:mingw32-libxml2-2.7.6-6.el6_3 6Server-optional-6.3.z:mingw32-libxml2-2.7.6-6.el6_3 6Workstation-optional-6.3.z:mingw32-libxml2-2.7.6-6.el6_3 Important 6.8 AV:N/AC:M/Au:N/C:P/I:P/A:P Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/knowledge/articles/11258 https://rhn.redhat.com/errata/RHSA-2013-0217.html https://www.redhat.com/security/data/cve/CVE-2012-5134.html CVE-2012-5134 https://bugzilla.redhat.com/show_bug.cgi?id=880466 bz#880466: CVE-2012-5134 libxml2: Heap-buffer-underflow in xmlParseAttValueComplex