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Fedora-Legacy alert FLSA:1324 (libxml2)

From:  Jesse Keating <>
Subject:  [FLSA-2004:1324] Updated libxml2 resolves security vulnerabilities
Date:  Mon, 19 Jul 2004 20:45:50 -0700

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 - ----------------------------------------------------------------------- Fedora Legacy Update Advisory Synopsis: Updated libxml2 resolves security vulnerability Advisory ID: FLSA:1324 Issue date: 2004-07-19 Product: Red Hat Linux Keywords: Security Cross references: CVE Names: CAN-2004-0110 - ----------------------------------------------------------------------- - --------------------------------------------------------------------- 1. Topic: Updated libxml2 packages that fix an overflow when parsing remote resources are now available. 2. Relevent releases/architectures: Red Hat Linux 7.3 - i386 3. Problem description: libxml2 is a library for manipulating XML files. Yuuichi Teranishi discovered a flaw in libxml2 versions prior to 2.6.6. When fetching a remote resource via FTP or HTTP, libxml2 uses special parsing routines. These routines can overflow a buffer if passed a very long URL. If an attacker is able to find an application using libxml2 that parses remote resources and allows them to influence the URL, then this flaw could be used to execute arbitrary code. The Common Vulnerabilities and Exposures project ( has assigned the name CAN-2004-0110 to this issue. All users are advised to upgrade to these updated packages, which contain a backported fix and are not vulnerable to this issue. Fedora Legacy would like to thank Johnny Strom for reporting this issue. 4. Solution: Before applying this update, make sure all previously released errata relevant to your system have been applied. To update all RPMs for your particular architecture, run: rpm -Fvh [filenames] where [filenames] is a list of the RPMs you wish to upgrade. Only those RPMs which are currently installed will be updated. Those RPMs which are not installed but included in the list will not be updated. Note that you can also use wildcards (*.rpm) if your current directory *only* contains the desired RPMs. Please note that this update is also available via yum and apt. Many people find this an easier way to apply updates. To use yum issue: yum update or to use apt: apt-get update; apt-get upgrade This will start an interactive process that will result in the appropriate RPMs being upgraded on your system. This assumes that you have yum or apt-get configured for obtaining Fedora Legacy content. Please visit http://www for directions on how to configure yum and apt-get. 5. Bug IDs fixed: - 1324 - libxml2: an overflow when parsing remote resources. 6. RPMs required: Red Hat Linux 7.3: SRPM: i386: 7. Verification: SHA1 sum Package Name - --------------------------------------------------------------------------- 7ea6c8e40a04c2eafb82d53e8e6931b27348f4ad 7.3/updates/SRPMS/libxml2-2.4.19-5.legacy.src.rpm c325b2b9d03335b41db6b0b462a35d1ed847e56f 7.3/updates/i386/libxml2-2.4.19-5.legacy.i386.rpm c53f70cad435630b3e5b5f5d363c7d425f980a35 7.3/updates/i386/libxml2-devel-2.4.19-5.legacy.i386.rpm 8819fa789731693645839f32f55aac2f2dc27906 7.3/updates/i386/libxml2-python-2.4.19-5.legacy.i386.rpm These packages are GPG signed by Fedora Legacy for security. Our key is available from http://www.fedoralegacy org/about/security.php You can verify each package with the following command: rpm --checksig -v <filename> If you only wish to verify that each package has not been corrupted or tampered with, examine only the sha1sum with the following command: sha1sum <filename> 8. References: 9. Contact: The Fedora Legacy security contact is <>. More project details at - --------------------------------------------------------------------- - -- Jesse Keating RHCE ( Fedora Legacy Team ( GPG Public Key ( Was I helpful? Let others know: -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.4 (GNU/Linux) iD8DBQFA/JVx4v2HLvE71NURAk+sAKCtr5UVXfrGLhkoHxfi5BHyDLtBmQCgum0l 5hirw0+x3WPmJhPz+nqydX4= =Xs3j -----END PGP SIGNATURE-----

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