ID

VAR-201011-0019

CVE

CVE-2010-4008

TITLE

xmlsoft libxml Buffer error vulnerability

DESCRIPTION

libxml2 before 2.7.8, as used in Google Chrome before 7.0.517.44, Apple Safari 5.0.2 and earlier, and other products, reads from invalid memory locations during processing of malformed XPath expressions, which allows context-dependent attackers to cause a denial of service (application crash) via a crafted XML document. The 'libxml2' library is prone to a memory-corruption vulnerability. An attacker can exploit this issue by tricking a victim into opening a specially crafted XML file. A successful attack can allow attacker-supplied code to run in the context of the application using the vulnerable library or can cause a denial-of-service condition. 'libxml2' versions prior to 2.7.8 are affected. Google Chrome is an open source web browser released by Google. It supports multiple encoding formats, XPath analysis, Well-formed and valid verification, etc. Packages for 2009.0 are provided as of the Extended Maintenance Program. The verification of md5 checksums and GPG signatures is performed automatically for you. 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/security/advisories If you want to report vulnerabilities, please contact security_(at)_mandriva.com _______________________________________________________________________ Type Bits/KeyID Date User ID pub 1024D/22458A98 2000-07-10 Mandriva Security Team <security*mandriva.com> -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (GNU/Linux) iD8DBQFM87BcmqjQ0CJFipgRAhtLAKDShPCQ/Gsm7qBzvcTZaIdAyTL0wQCfc7vl ViUDiKySUb6P7eFnOzt8Eg8= =8Sf0 -----END PGP SIGNATURE----- . ---------------------------------------------------------------------- Secure your corporate defenses and reduce complexity in handling vulnerability threats with the new Secunia Vulnerability Intelligence Manager (VIM). Request a free trial: http://secunia.com/products/corporate/vim/ ---------------------------------------------------------------------- TITLE: Libxml2 XPath Double Free Vulnerability SECUNIA ADVISORY ID: SA42721 VERIFY ADVISORY: Secunia.com http://secunia.com/advisories/42721/ Customer Area (Credentials Required) https://ca.secunia.com/?page=viewadvisory&vuln_id=42721 RELEASE DATE: 2010-12-28 DISCUSS ADVISORY: http://secunia.com/advisories/42721/#comments AVAILABLE ON SITE AND IN CUSTOMER AREA: * Last Update * Popularity * Comments * Criticality Level * Impact * Where * Solution Status * Operating System / Software * CVE Reference(s) http://secunia.com/advisories/42721/ ONLY AVAILABLE IN CUSTOMER AREA: * Authentication Level * Report Reliability * Secunia PoC * Secunia Analysis * Systems Affected * Approve Distribution * Remediation Status * Secunia CVSS Score * CVSS https://ca.secunia.com/?page=viewadvisory&vuln_id=42721 ONLY AVAILABLE WITH SECUNIA CSI AND SECUNIA PSI: * AUTOMATED SCANNING http://secunia.com/vulnerability_scanning/personal/ http://secunia.com/vulnerability_scanning/corporate/wsus_sccm_3rd_third_party_patching/ DESCRIPTION: A vulnerability has been reported in Libxml2, which can be exploited by malicious people to cause a DoS (Denial of Service) or potentially compromise an application using the library. For more information see vulnerability #11: SA42472 The vulnerability is reported in version 2.7.8. SOLUTION: Do not process untrusted XML content using the library. PROVIDED AND/OR DISCOVERED BY: Yang Dingning from NCNIPC, Graduate University of Chinese Academy of Sciences. ORIGINAL ADVISORY: http://code.google.com/p/chromium/issues/detail?id=63444 OTHER REFERENCES: Further details available in Customer Area: http://secunia.com/products/corporate/EVM/ DEEP LINKS: Further details available in Customer Area: http://secunia.com/products/corporate/EVM/ EXTENDED DESCRIPTION: Further details available in Customer Area: http://secunia.com/products/corporate/EVM/ EXTENDED SOLUTION: Further details available in Customer Area: http://secunia.com/products/corporate/EVM/ EXPLOIT: Further details available in Customer Area: http://secunia.com/products/corporate/EVM/ ---------------------------------------------------------------------- About: This Advisory was delivered by Secunia as a free service to help private users keeping their systems up to date against the latest vulnerabilities. Subscribe: http://secunia.com/advisories/secunia_security_advisories/ Definitions: (Criticality, Where etc.) http://secunia.com/advisories/about_secunia_advisories/ Please Note: Secunia recommends that you verify all advisories you receive by clicking the link. Secunia NEVER sends attached files with advisories. Secunia does not advise people to install third party patches, only use those supplied by the vendor. ---------------------------------------------------------------------- Unsubscribe: Secunia Security Advisories http://secunia.com/sec_adv_unsubscribe/?email=packet%40packetstormsecurity.org ---------------------------------------------------------------------- . - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 201110-26 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - http://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Severity: High Title: libxml2: Multiple vulnerabilities Date: October 26, 2011 Bugs: #345555, #370715, #386985 ID: 201110-26 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Synopsis ======== Multiple vulnerabilities were found in libxml2 which could lead to execution of arbitrary code or a Denial of Service. Background ========== libxml2 is the XML C parser and toolkit developed for the Gnome project. Affected packages ================= ------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 dev-libs/libxml2 < 2.7.8-r3 >= 2.7.8-r3 Description =========== Multiple vulnerabilities have been discovered in libxml2. Please review the CVE identifiers referenced below for details. Workaround ========== There is no known workaround at this time. Resolution ========== All libxml2 users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=dev-libs/libxml2-2.7.8-r3" References ========== [ 1 ] CVE-2010-4008 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2010-4008 [ 2 ] CVE-2010-4494 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2010-4494 [ 3 ] CVE-2011-1944 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2011-1944 [ 4 ] CVE-2011-2821 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2011-2821 [ 5 ] CVE-2011-2834 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2011-2834 Availability ============ This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-201110-26.xml Concerns? ========= Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users' machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at https://bugs.gentoo.org. License ======= Copyright 2011 Gentoo Foundation, Inc; referenced text belongs to its owner(s). The contents of this document are licensed under the Creative Commons - Attribution / Share Alike license. http://creativecommons.org/licenses/by-sa/2.5 . 5 client) - i386, x86_64 3. (CVE-2011-3905) Note: Red Hat does not ship any applications that use libxml2 in a way that would allow the CVE-2011-1944, CVE-2010-4008, and CVE-2011-2834 flaws to be exploited; however, third-party applications may allow XPath expressions to be passed which could trigger these flaws. The desktop must be restarted (log out, then log back in) for this update to take effect. -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ===================================================================== Red Hat Security Advisory Synopsis: Important: mingw32-libxml2 security update Advisory ID: RHSA-2013:0217-01 Product: Red Hat Enterprise Linux Advisory URL: https://rhn.redhat.com/errata/RHSA-2013-0217.html Issue date: 2013-01-31 CVE Names: CVE-2010-4008 CVE-2010-4494 CVE-2011-0216 CVE-2011-1944 CVE-2011-2821 CVE-2011-2834 CVE-2011-3102 CVE-2011-3905 CVE-2011-3919 CVE-2012-0841 CVE-2012-5134 ===================================================================== 1. Summary: 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. 2. Relevant releases/architectures: Red Hat Enterprise Linux Desktop Optional (v. 6) - noarch Red Hat Enterprise Linux HPC Node Optional (v. 6) - noarch Red Hat Enterprise Linux Server Optional (v. 6) - noarch Red Hat Enterprise Linux Workstation Optional (v. 6) - noarch 3. Description: 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. (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. (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. 4. Solution: 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 5. Bugs fixed (http://bugzilla.redhat.com/): 645341 - CVE-2010-4008 libxml2: Crash (stack frame overflow or NULL pointer dereference) by traversal of XPath axis 665963 - CVE-2010-4494 libxml2: double-free in XPath processing code 709747 - CVE-2011-1944 libxml, libxml2: Heap-based buffer overflow by adding new namespace node to an existing nodeset or merging nodesets 724906 - CVE-2011-0216 libxml2: Off-by-one error leading to heap-based buffer overflow in encoding 735712 - CVE-2011-2821 libxml2: double free caused by malformed XPath expression in XSLT 735751 - CVE-2011-2834 libxml2: double-free caused by malformed XPath expression in XSLT 767387 - CVE-2011-3905 libxml2 out of bounds read 771896 - CVE-2011-3919 libxml2: Heap-based buffer overflow when decoding an entity reference with a long name 787067 - CVE-2012-0841 libxml2: hash table collisions CPU usage DoS 822109 - CVE-2011-3102 libxml: An off-by-one out-of-bounds write by XPointer part evaluation 880466 - CVE-2012-5134 libxml2: Heap-buffer-underflow in xmlParseAttValueComplex 6. Package List: Red Hat Enterprise Linux Desktop Optional (v. 6): Source: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Client/en/os/SRPMS/mingw32-libxml2-2.7.6-6.el6_3.src.rpm noarch: mingw32-libxml2-2.7.6-6.el6_3.noarch.rpm mingw32-libxml2-debuginfo-2.7.6-6.el6_3.noarch.rpm mingw32-libxml2-static-2.7.6-6.el6_3.noarch.rpm Red Hat Enterprise Linux HPC Node Optional (v. 6): Source: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6ComputeNode/en/os/SRPMS/mingw32-libxml2-2.7.6-6.el6_3.src.rpm noarch: mingw32-libxml2-2.7.6-6.el6_3.noarch.rpm mingw32-libxml2-debuginfo-2.7.6-6.el6_3.noarch.rpm mingw32-libxml2-static-2.7.6-6.el6_3.noarch.rpm Red Hat Enterprise Linux Server Optional (v. 6): Source: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Server/en/os/SRPMS/mingw32-libxml2-2.7.6-6.el6_3.src.rpm noarch: mingw32-libxml2-2.7.6-6.el6_3.noarch.rpm mingw32-libxml2-debuginfo-2.7.6-6.el6_3.noarch.rpm mingw32-libxml2-static-2.7.6-6.el6_3.noarch.rpm Red Hat Enterprise Linux Workstation Optional (v. 6): Source: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Workstation/en/os/SRPMS/mingw32-libxml2-2.7.6-6.el6_3.src.rpm noarch: mingw32-libxml2-2.7.6-6.el6_3.noarch.rpm mingw32-libxml2-debuginfo-2.7.6-6.el6_3.noarch.rpm mingw32-libxml2-static-2.7.6-6.el6_3.noarch.rpm These packages are GPG signed by Red Hat for security. Our key and details on how to verify the signature are available from https://access.redhat.com/security/team/key/#package 7. References: https://www.redhat.com/security/data/cve/CVE-2010-4008.html https://www.redhat.com/security/data/cve/CVE-2010-4494.html https://www.redhat.com/security/data/cve/CVE-2011-0216.html https://www.redhat.com/security/data/cve/CVE-2011-1944.html https://www.redhat.com/security/data/cve/CVE-2011-2821.html https://www.redhat.com/security/data/cve/CVE-2011-2834.html https://www.redhat.com/security/data/cve/CVE-2011-3102.html https://www.redhat.com/security/data/cve/CVE-2011-3905.html https://www.redhat.com/security/data/cve/CVE-2011-3919.html https://www.redhat.com/security/data/cve/CVE-2012-0841.html https://www.redhat.com/security/data/cve/CVE-2012-5134.html https://access.redhat.com/security/updates/classification/#important 8. Contact: The Red Hat security contact is <secalert@redhat.com>. More contact details at https://access.redhat.com/security/team/contact/ Copyright 2013 Red Hat, Inc. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.4 (GNU/Linux) iD8DBQFRCujqXlSAg2UNWIIRAq0HAJ41YXDqlCpJkg97YuQmaF2MqKDIpACgn5j7 sLTqWGtUMTYIUvLH8YXGFX4= =rOjB -----END PGP SIGNATURE----- -- RHSA-announce mailing list RHSA-announce@redhat.com https://www.redhat.com/mailman/listinfo/rhsa-announce

AFFECTED PRODUCTS