From owner-freebsd-announce@FreeBSD.ORG Tue Jun 9 22:39:37 2015 Return-Path: Delivered-To: freebsd-announce@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [8.8.178.115]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id 32FFCE7; Tue, 9 Jun 2015 22:39:37 +0000 (UTC) (envelope-from security-advisories@freebsd.org) Received: from freefall.freebsd.org (freefall.freebsd.org [IPv6:2001:1900:2254:206c::16:87]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 1F9DA177A; Tue, 9 Jun 2015 22:39:37 +0000 (UTC) (envelope-from security-advisories@freebsd.org) Received: from freefall.freebsd.org (localhost [127.0.0.1]) by freefall.freebsd.org (8.14.9/8.14.9) with ESMTP id t59MdawI011838; Tue, 9 Jun 2015 22:39:36 GMT (envelope-from security-advisories@freebsd.org) Received: (from delphij@localhost) by freefall.freebsd.org (8.14.9/8.14.9/Submit) id t59MdaKR011836; Tue, 9 Jun 2015 22:39:36 GMT (envelope-from security-advisories@freebsd.org) Date: Tue, 9 Jun 2015 22:39:36 GMT Message-Id: <201506092239.t59MdaKR011836@freefall.freebsd.org> X-Authentication-Warning: freefall.freebsd.org: delphij set sender to security-advisories@freebsd.org using -f From: FreeBSD Errata Notices To: FreeBSD Errata Notices Reply-To: freebsd-stable@freebsd.org Precedence: bulk Subject: [FreeBSD-Announce] FreeBSD Errata Notice FreeBSD-EN-15:06.file X-BeenThere: freebsd-announce@freebsd.org X-Mailman-Version: 2.1.20 List-Id: "Project Announcements \[moderated\]" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 09 Jun 2015 22:39:37 -0000 -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 ============================================================================= FreeBSD-EN-15:06.file Errata Notice The FreeBSD Project Topic: Version and security update of file(1) and libmagic(3) Category: contrib Module: file Announced: 2015-06-09 Affects: All supported versions of FreeBSD. Corrected: 2015-01-23 18:48:59 UTC (stable/10, 10.1-STABLE) 2015-06-09 22:13:25 UTC (releng/10.1, 10.1-RELEASE-p11) 2015-01-23 18:50:36 UTC (stable/9, 9.3-STABLE) 2015-06-09 22:13:53 UTC (releng/9.3, 9.3-RELEASE-p15) 2015-05-09 23:53:25 UTC (stable/8, 8.4-STABLE) 2015-06-09 22:13:53 UTC (releng/8.4, 8.4-RELEASE-p29) CVE Name: CVE-2014-0207, CVE-2014-3478, CVE-2014-3479, CVE-2014-3480, CVE-2014-3487, CVE-2014-3538, CVE-2014-3587, CVE-2014-9620, CVE-2014-9621, CVE-2014-9653 For general information regarding FreeBSD Errata Notices and Security Advisories, including descriptions of the fields above, security branches, and the following sections, please visit . I. Background The file(1) utility attempts to classify file system objects based on filesystem, magic number and language tests. The libmagic(3) library provides most of the functionality of file(1) and may be used by other applications. II. Problem Description There are a number of denial of service issues when handling complex files, for instance Portable Executable (PE) files and ELF files parsing code with libmagic(3) and in turn file(1). III. Impact An attacker who can cause file(1) or any other applications using the libmagic(3) library to be run on a maliciously constructed input can cause the application to crash or consume excessive CPU resources, resulting in a denial-of-service. IV. Workaround System administrators who run file(1) and libmagic(3) against untrusted files, for instance when running with a mail server's mail scanner, are advised to configure the scanner in a way so that they do not call file(1) or libmagic(3) to conduct deep inspection of input files. Most of these scanners does not really need the in-depth analysis and the file type determined by libmagic is already sufficient. V. Solution This errata replaces the base system file(1) and libmagic(3) with the version 5.22. Perform one of the following: 1) Upgrade your system to a supported FreeBSD stable or release / security branch (releng) dated after the correction date. 2) To update your present system via a binary patch: Systems running a RELEASE version of FreeBSD on the i386 or amd64 platforms can be updated via the freebsd-update(8) utility: # freebsd-update fetch # freebsd-update install 3) To update your present system via a source code patch: The following patches have been verified to apply to the applicable FreeBSD release branches. a) Download the relevant patch from the location below, and verify the detached PGP signature using your PGP utility. [FreeBSD 10.1] # fetch https://security.FreeBSD.org/patches/EN-15:06/file-10.1.patch # fetch https://security.FreeBSD.org/patches/EN-15:06/file-10.1.patch.asc # gpg --verify file-10.1.patch.asc [FreeBSD 9.3] # fetch https://security.FreeBSD.org/patches/EN-15:06/file-9.3.patch # fetch https://security.FreeBSD.org/patches/EN-15:06/file-9.3.patch.asc # gpg --verify file-9.3.patch.asc [FreeBSD 8.4] # fetch https://security.FreeBSD.org/patches/EN-15:06/file-8.4.patch # fetch https://security.FreeBSD.org/patches/EN-15:06/file-8.4.patch.asc # gpg --verify file-8.4.patch.asc b) Apply the patch. Execute the following commands as root: # cd /usr/src # patch < /path/to/patch c) Recompile the operating system using buildworld and installworld as described in . Restart all deamons using the library, or reboot the system. VI. Correction details The following list contains the correction revision numbers for each affected branch. Branch/path Revision - ------------------------------------------------------------------------- stable/8/ r283135 releng/8.4/ r284194 stable/9/ r277593 releng/9.3/ r284194 stable/10/ r277592 releng/10.1/ r284193 - ------------------------------------------------------------------------- To see which files were modified by a particular revision, run the following command, replacing NNNNNN with the revision number, on a machine with Subversion installed: # svn diff -cNNNNNN --summarize svn://svn.freebsd.org/base Or visit the following URL, replacing NNNNNN with the revision number: VII. References The latest revision of this Errata Notice is available at https://security.FreeBSD.org/advisories/FreeBSD-EN-15:06.file.asc -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.1.4 (FreeBSD) iQIcBAEBCgAGBQJVd2aEAAoJEO1n7NZdz2rnEVQP/2OPfepmvG2/vYrH3bKDHPRi 12QFfE3Ylr8ctoDQRCBazdxhzLEMxdP3g9icJ0ZbnDWVmFtM9BwDfCrkcYmI6uCt 0E1usrqHs6qthm4i1UAwRu4v71LM2yllHCaLt/XWxWDXsbI/vA5wkZgfgZK8kZWW PAiBUuI1bM4pegi+yymgMRoHquoyB0x2jNBKywnb9KT7m8Br9uYnJrCajI6G9HUy /eQKtefOVQat0trIoOwXS7cIZhLWJlVAKUinBjb2IGHxkWOrUhgXlPCpB4efS0pG IqEv2gvHpxllgmf+4leqNXYT8R1EUu+3OE6SbN7jV+RwgPc0TNUxC4Bkb6r1LoSH BRf5FMuVDYAlDKDz4j8NY0v84PpD9d37w7SSBZPiR+Fwn5xs0F4PjsU2c+tPEnVD Sn1vYkafvC+KXsuJtmd4sqb1zLRdpOGDxruA0VtOKATA1sDa1QZIBTB7w7iZ03f5 umCpU8p5mo7a9AroavUEZkcpu4w5BptAsgYoBdOeKHhStBtPlXiGpML8zLhj1qnL hGF6RY2QrhD35C7OIer1ji0F2pEKkFfaeAqkvIXmYJaH+KQeIrEdt+ki2GStW1m9 OdL79RMreVGE1DuX/2puBxKcMsQR+fas4L4uGi46MDXXMeV0LKJHiAT2twJlDOL/ mc3UcOeMcAfOkINcpGuD =8/lF -----END PGP SIGNATURE-----