From owner-freebsd-announce@freebsd.org Thu Sep 27 20:08:43 2018 Return-Path: Delivered-To: freebsd-announce@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 5A1A510B7E17 for ; Thu, 27 Sep 2018 20:08:43 +0000 (UTC) (envelope-from security-advisories@freebsd.org) Received: from freefall.freebsd.org (freefall.freebsd.org [IPv6:2610:1c1:1:6074::16:84]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "freefall.freebsd.org", Issuer "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 02FC374C8F; Thu, 27 Sep 2018 20:08:43 +0000 (UTC) (envelope-from security-advisories@freebsd.org) Received: by freefall.freebsd.org (Postfix, from userid 945) id EFA4F14B6E; Thu, 27 Sep 2018 20:08:42 +0000 (UTC) From: FreeBSD Errata Notices To: FreeBSD Errata Notices Reply-To: freebsd-stable@freebsd.org Precedence: bulk Message-Id: <20180927200842.EFA4F14B6E@freefall.freebsd.org> Date: Thu, 27 Sep 2018 20:08:42 +0000 (UTC) Subject: [FreeBSD-Announce] FreeBSD Errata Notice FreeBSD-EN-18:09.ip X-BeenThere: freebsd-announce@freebsd.org X-Mailman-Version: 2.1.27 List-Id: "Project Announcements \[moderated\]" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 27 Sep 2018 20:08:43 -0000 -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 ============================================================================= FreeBSD-EN-18:09.ip Errata Notice The FreeBSD Project Topic: IP fragment remediation causes IPv6 fragment reassembly failure Category: core Module: kernel Announced: 2018-09-27 Credits: Kristof Provost Affects: FreeBSD 11.1 and FreeBSD 11.2 Corrected: 2018-09-27 18:29:55 UTC (releng/11.2, 11.2-RELEASE-p4) 2018-09-27 18:29:55 UTC (releng/11.1, 11.1-RELEASE-p15) 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 recent security advisory titled SA-18:10.ip resolved an issue in the IPv4 and IPv6 fragment reassembly code. II. Problem Description As a result of fixing the issue describe in SA-18:10.ip, a regression was introduced in the IPv6 fragment hashing code which could cause reassembly to fail. III. Impact Received IPv6 packets requiring fragment reassembly may be dropped instead of properly reassembled and delivered. IV. Workaround Disable IPv6 fragment reassembly, using these commands: % sysctl net.inet6.ip6.maxfrags=0 On systems compiled with VIMAGE, these sysctls will need to be executed for each VNET. V. Solution Perform one of the following: 1) Upgrade your system to a supported FreeBSD stable or release / security branch (releng) dated after the correction date. Afterward, reboot the system. 2) To update your 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 Afterward, reboot the system. 3) To update your 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 11.x] # fetch https://security.FreeBSD.org/patches/EN-18:09/ip.patch # fetch https://security.FreeBSD.org/patches/EN-18:09/ip.patch.asc # gpg --verify ip.patch.asc b) Apply the patch. Execute the following commands as root: # cd /usr/src # patch < /path/to/patch c) Recompile your kernel as described in and reboot the system. VI. Correction details The following list contains the correction revision numbers for each affected branch. Branch/path Revision - ------------------------------------------------------------------------- releng/11.1/ r338978 releng/11.2/ r338978 - ------------------------------------------------------------------------- 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 security advisory that introduced the regression is available at The latest revision of this advisory is available at -----BEGIN PGP SIGNATURE----- iQKTBAEBCgB9FiEE/A6HiuWv54gCjWNV05eS9J6n5cIFAlutKTVfFIAAAAAALgAo aXNzdWVyLWZwckBub3RhdGlvbnMub3BlbnBncC5maWZ0aGhvcnNlbWFuLm5ldEZD MEU4NzhBRTVBRkU3ODgwMjhENjM1NUQzOTc5MkY0OUVBN0U1QzIACgkQ05eS9J6n 5cKagRAAh4AnkPqG5hNnpilNct2cjY6GrU+Ex0hmbDbv36RR5Cj/Xi6FrdjGdF6/ sA5/KYC1fOe07S2JJDgh2b5f1E3NBtfCCXQL3Fq46LRu8KJUifReY23kxNw74pev 86WmxtctkJ62gc3EUhaTx5tgvIqHRnLrNbJqAJ9VEZkV5aa33yT/5zDTq0TLJPsK LfgwIWw7KAecH28cHx9KH+QyeLEsKoQPj5PIpQih7aZE/8cVLIMxKepExzPFx0s8 SV1BFVQqJaRK4frv7tHZIEjTrseKVhF6SCqbtSVP6ZBtOAaaNGobq9bQNzPPxls7 tTIGC6JVacUNNzJY+uv+DyHwCcEqyU5HQKOaJGqcQ4rxccXdWLBQOA55sRuiCZSy SxRzs+4JNo2XDACnSECUFFos05HXxOWm8lqt8juR6fnq9Auej/PmktQYHaIXI3us hYOlHu7Oo6sSGERBE92I1B4Y0L2BzXgroFN+rKmzlLGmM3vQYDxt2o0/GpMRf0wf I+plRLC9osYTc/QFJzqt6dGJj+46xWyCw8aGcRhtQGPWUcB3DtYRjJxi1x6YjBkN Cw3nepcW4rwJpmJZyGuNhsyKFZlhhz2+GV1lxsoe5TC6rRbEo30O3aU1zh5+fljo KR9WSfy6bNoTX4NhbCJ+j9fdD6AxiqWtmB8h4Vp7ykrM/VJLUzc= =1FtK -----END PGP SIGNATURE----- From owner-freebsd-announce@freebsd.org Thu Sep 27 20:08:49 2018 Return-Path: Delivered-To: freebsd-announce@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 23E0A10B7E2F for ; Thu, 27 Sep 2018 20:08:49 +0000 (UTC) (envelope-from security-advisories@freebsd.org) Received: from freefall.freebsd.org (freefall.freebsd.org [IPv6:2610:1c1:1:6074::16:84]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "freefall.freebsd.org", Issuer "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id C0E0D74C9A; Thu, 27 Sep 2018 20:08:48 +0000 (UTC) (envelope-from security-advisories@freebsd.org) Received: by freefall.freebsd.org (Postfix, from userid 945) id B99A614B74; Thu, 27 Sep 2018 20:08:48 +0000 (UTC) From: FreeBSD Errata Notices To: FreeBSD Errata Notices Reply-To: freebsd-stable@freebsd.org Precedence: bulk Message-Id: <20180927200848.B99A614B74@freefall.freebsd.org> Date: Thu, 27 Sep 2018 20:08:48 +0000 (UTC) Subject: [FreeBSD-Announce] FreeBSD Errata Notice FreeBSD-EN-18:10.syscall X-BeenThere: freebsd-announce@freebsd.org X-Mailman-Version: 2.1.27 List-Id: "Project Announcements \[moderated\]" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 27 Sep 2018 20:08:49 -0000 -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 ============================================================================= FreeBSD-EN-18:10.syscall Errata Notice The FreeBSD Project Topic: NULL pointer dereference in freebsd4_getfsstat system call Category: core Module: kernel Announced: 2018-09-27 Credits: Thomas Barabosch, Fraunhofer FKIE Affects: FreeBSD 11.x Corrected: 2018-09-27 18:54:41 UTC (stable/11, 11.1-STABLE) 2018-09-27 18:32:14 UTC (releng/11.2, 11.2-RELEASE-p4) 2018-09-27 18:32:14 UTC (releng/11.1, 11.1-RELEASE-p15) CVE Name: CVE-2018-17154 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 freebsd4_getfsstat system call returns information about all mounted file systems in a binary format compatible with FreeBSD 4.x. Part of the call includes passing in a userland allocated buffer for the system call to fill along with the size of the buffer. II. Problem Description Insufficient checking occurs on the buffer when a very large buffer size causes memory allocation to fail. Resulting code attempts to free the NULL pointer. III. Impact A local unprivileged user may cause a denial of service using a specially crafted binary. IV. Workaround No workaround is available. V. Solution Perform one of the following: 1) Upgrade your system to a supported FreeBSD stable or release / security branch (releng) dated after the correction date. Afterward, reboot the system. 2) To update your 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 Afterward, reboot the system. 3) To update your 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 11.x] # fetch https://security.FreeBSD.org/patches/EN-18:10/syscall-11.patch # fetch https://security.FreeBSD.org/patches/EN-18:10/syscall-11.patch.asc # gpg --verify syscall-11.patch.asc b) Apply the patch. Execute the following commands as root: # cd /usr/src # patch < /path/to/patch c) Recompile your kernel as described in and reboot the system. VI. Correction details The following list contains the correction revision numbers for each affected branch. Branch/path Revision - ------------------------------------------------------------------------- stable/11/ r338987 releng/11.1/ r338979 releng/11.2/ r338979 - ------------------------------------------------------------------------- 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 advisory is available at -----BEGIN PGP SIGNATURE----- iQKSBAEBCgB9FiEE/A6HiuWv54gCjWNV05eS9J6n5cIFAlutKT9fFIAAAAAALgAo aXNzdWVyLWZwckBub3RhdGlvbnMub3BlbnBncC5maWZ0aGhvcnNlbWFuLm5ldEZD MEU4NzhBRTVBRkU3ODgwMjhENjM1NUQzOTc5MkY0OUVBN0U1QzIACgkQ05eS9J6n 5cJMqQ/4ycdylBNCX0cqFDYrtDU0OJO0mEi2LKqCM31YzOCLbKLtVSq06rxOj/E9 0okWag0NxaGIo2+7+b/hykDwL+1Rwpa5YNdODESRYQeW0OVdnmy/JSB/8q2I2BwX PrqMc38sc9YuCz202B7tj4CQRKyhe2/qWRXANzh4jolC8zIuP7zAH6bMO+jc4XJS 9qe2YdvChWiwLJXOSXaqZf1xY1jY08+lRGDx03n13OLRN8PZdbIoDEmOd2/vxhcV YRcDH0axLJSyngknPE9gU8iVZDunxpNBool5hJYDd8rBbAfypXWSDZ7wJGUn7tUZ 3Cj/NPmZ9auMTGLgpRJB/bhgCnn3mZQ5QjR1egonZf3uIlTWZ+0C9GhJjh5cw+2p 3hF+202uJicNm5TSkO6QpavVVvQNFcuCR54ZvXEICv3YNam3yDupGWsbjHloxoCw 7A/wmBBcbtAJ7ujzgPm4+yN5Vno4dcPmkIfW9bz0fwXzYF1VEaF5pZZu7a9bjdI0 xHBk2v77NIRBxC5i1KK5R5Guj0UY0EvkclBTF4Twh3TP0SAPN+5sqpmBRQwPGEdp 9v5TPQv5DJn0KTJwkdrrP+70WIYkfcUVJ9hJYbXAMXseN1q3mTggS/ypF9ckTP0Z D1hQuUySz07GInHlJ+znS8CzVSj/iWqsxThBBbwgy1a4haxr5A== =HCqG -----END PGP SIGNATURE----- From owner-freebsd-announce@freebsd.org Thu Sep 27 20:08:54 2018 Return-Path: Delivered-To: freebsd-announce@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 94B4710B7E43 for ; Thu, 27 Sep 2018 20:08:54 +0000 (UTC) (envelope-from security-advisories@freebsd.org) Received: from freefall.freebsd.org (freefall.freebsd.org [IPv6:2610:1c1:1:6074::16:84]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "freefall.freebsd.org", Issuer "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 3D78F74CA4; Thu, 27 Sep 2018 20:08:54 +0000 (UTC) (envelope-from security-advisories@freebsd.org) Received: by freefall.freebsd.org (Postfix, from userid 945) id 35DAD14B77; Thu, 27 Sep 2018 20:08:54 +0000 (UTC) From: FreeBSD Errata Notices To: FreeBSD Errata Notices Reply-To: freebsd-stable@freebsd.org Precedence: bulk Message-Id: <20180927200854.35DAD14B77@freefall.freebsd.org> Date: Thu, 27 Sep 2018 20:08:54 +0000 (UTC) Subject: [FreeBSD-Announce] FreeBSD Errata Notice FreeBSD-EN-18:11.listen X-BeenThere: freebsd-announce@freebsd.org X-Mailman-Version: 2.1.27 List-Id: "Project Announcements \[moderated\]" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 27 Sep 2018 20:08:54 -0000 -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 ============================================================================= FreeBSD-EN-18:11.listen Errata Notice The FreeBSD Project Topic: Denial of service in listen syscall over IPv6 socket Category: core Module: kernel Announced: 2018-09-27 Credits: Jakub Jirasek, Secunia Research at Flexera Affects: All supported versions of FreeBSD. Corrected: 2018-09-27 18:50:10 UTC (stable/11, 11.2-STABLE) 2018-09-27 18:34:42 UTC (releng/11.2, 11.2-RELEASE-p4) 2018-09-27 18:34:42 UTC (releng/11.1, 11.1-RELEASE-p15) 2018-09-27 18:48:50 UTC (stable/10, 10.4-STABLE) 2018-09-27 18:34:42 UTC (releng/10.4, 10.4-RELEASE-p13) CVE Name: CVE-2018-6925 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 protocol control block is a structure that maintains the network layer state for various sockets. There are various state flags that must be properly maintained to keep the structure consistent. II. Problem Description There are various cases in the IPv6 socket code where the protocol control block's state flags are modified during a syscall, but are not restored if the operation fails. This can leave the control block in an inconsistent state. III. Impact A local unprivileged user could exploit the inconsistent state of the protocol control block to cause the kernel to crash, leading to a denial of service. IV. Workaround No workaround is available. V. Solution Perform one of the following: 1) Upgrade your system to a supported FreeBSD stable or release / security branch (releng) dated after the correction date. Afterward, reboot the system. 2) To update your 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 Afterward, reboot the system. 3) To update your 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 11.x] # fetch https://security.FreeBSD.org/patches/EN-18:11/listen-11.patch # fetch https://security.FreeBSD.org/patches/EN-18:11/listen-11.patch.asc # gpg --verify listen-11.patch.asc [FreeBSD 10.4] # fetch https://security.FreeBSD.org/patches/EN-18:11/listen-10.patch # fetch https://security.FreeBSD.org/patches/EN-18:11/listen-10.patch.asc # gpg --verify listen-10.patch.asc b) Apply the patch. Execute the following commands as root: # cd /usr/src # patch < /path/to/patch c) Recompile your kernel as described in and reboot the system. VI. Correction details The following list contains the correction revision numbers for each affected branch. Branch/path Revision - ------------------------------------------------------------------------- stable/10/ r338985 releng/10.4/ r338980 stable/11/ r338986 releng/11.1/ r338980 releng/11.2/ r338980 - ------------------------------------------------------------------------- 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 For information about Secunia Research: The latest revision of this advisory is available at -----BEGIN PGP SIGNATURE----- iQKTBAEBCgB9FiEE/A6HiuWv54gCjWNV05eS9J6n5cIFAlutKURfFIAAAAAALgAo aXNzdWVyLWZwckBub3RhdGlvbnMub3BlbnBncC5maWZ0aGhvcnNlbWFuLm5ldEZD MEU4NzhBRTVBRkU3ODgwMjhENjM1NUQzOTc5MkY0OUVBN0U1QzIACgkQ05eS9J6n 5cIUEA/+JxBo76dRre8nfvYcN2PJGGFn8i2mWwSG87SWwQUeKlkgpJCV8qMnVEr2 dGz3gwBsxFLKUjQVyl+IwFkaJgKXMbFYkfIqLaS+3a12KLllFAn2Q0dnN+oxFhS2 Wpx4DkDRgBzEyLokxwjUCtg2fd6HPlML2YXCR5SqjXDOoBGAR9GCCXXYNnWSC00y IYgeC8UpE3ykTlwDH8q+LgLqtnx/oDW1h6UR12alP0ytH8+BldiAqRxjHE3/Wv2E aU8m8YuAAIW4tHZ4vdqpiFP4grN/0tSf/DEPBTtVIv5FGpXSk61YTBSm4OMIKNN8 QEVEA6n6NEGSKYrbB5BE73KYgCAaeGzcGikX9F4aAlN5GSPBVJ66SEbk16YDzDfB KimjhityEP5YXh8hVkNo6fq+17dKpqx81390wzcXeDlBTIkANnKLh23gE0RuniNY dXrPE2HWSpkCnWN6l0BImefDeCgAaF7KZK+z7bbsn2D7UMGFGeHU/XlRM0ze7OOV ETqwk2M4GuxddHTKktNGBItWVd6EjReAh6QOo1kAA4qMKuNIiDQdRS72x6fUbmlA ZIOzPNd6TS57aKSnAZlR1SpvRMqo+g9cetMxuJmKnQ+hXaRk2zJVuP2RAJuoFFqf TmnVAPpDRjoYa0lf2YkOKtYcfF+pBcWI1CVAEFuQG2PheJRYns0= =jMY6 -----END PGP SIGNATURE----- From owner-freebsd-announce@freebsd.org Thu Sep 27 20:08:57 2018 Return-Path: Delivered-To: freebsd-announce@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id C09EC10B7E52 for ; Thu, 27 Sep 2018 20:08:57 +0000 (UTC) (envelope-from security-advisories@freebsd.org) Received: from freefall.freebsd.org (freefall.freebsd.org [96.47.72.132]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "freefall.freebsd.org", Issuer "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 7D0F474CAE; Thu, 27 Sep 2018 20:08:57 +0000 (UTC) (envelope-from security-advisories@freebsd.org) Received: by freefall.freebsd.org (Postfix, from userid 945) id 7609714B80; Thu, 27 Sep 2018 20:08:57 +0000 (UTC) From: FreeBSD Errata Notices To: FreeBSD Errata Notices Reply-To: freebsd-stable@freebsd.org Precedence: bulk Message-Id: <20180927200857.7609714B80@freefall.freebsd.org> Date: Thu, 27 Sep 2018 20:08:57 +0000 (UTC) Subject: [FreeBSD-Announce] FreeBSD Errata Notice FreeBSD-EN-18:12.mem X-BeenThere: freebsd-announce@freebsd.org X-Mailman-Version: 2.1.27 List-Id: "Project Announcements \[moderated\]" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 27 Sep 2018 20:08:58 -0000 -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 ============================================================================= FreeBSD-EN-18:12.mem Errata Notice The FreeBSD Project Topic: Small kernel memory disclosures in two system calls Category: core Module: kernel Announced: 2018-09-27 Credits: Thomas Barabosch, Fraunhofer FKIE Affects: All supported versions of FreeBSD. Corrected: 2018-09-27 18:42:40 UTC (stable/11, 11.2-STABLE) 2018-09-27 18:36:30 UTC (releng/11.2, 11.2-RELEASE-p4) 2018-09-27 18:36:30 UTC (releng/11.1, 11.1-RELEASE-p15) 2018-09-27 18:44:40 UTC (stable/10, 10.4-STABLE) 2018-09-27 18:36:30 UTC (releng/10.4, 10.4-RELEASE-p13) CVE Name: CVE-2018-17155 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 kernel provides an interface for userland programs via system calls. Two of these system calls are named getcontext and swapcontext. II. Problem Description Due to insufficient initialization of memory copied to userland in the getcontext and swapcontext system calls, small amounts of kernel memory may be disclosed to userland processes. III. Impact An unprivileged local user may be able to create a specific program to read the contents of small portions of kernel memory. Such memory might contain sensitive information, such as portions of the file cache or terminal buffers. This information might be directly useful, or it might be leveraged to obtain elevated privileges in some way; for example, a terminal buffer might include a user-entered password. IV. Workaround No workaround is available. V. Solution Perform one of the following: 1) Upgrade your system to a supported FreeBSD stable or release / security branch (releng) dated after the correction date. Afterward, reboot the system. 2) To update your 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 Afterward, reboot the system. 3) To update your 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. # fetch https://security.FreeBSD.org/patches/EN-18:12/mem.patch # fetch https://security.FreeBSD.org/patches/EN-18:12/mem.patch.asc # gpg --verify mem.patch.asc b) Apply the patch. Execute the following commands as root: # cd /usr/src # patch < /path/to/patch c) Recompile your kernel as described in and reboot the system. VI. Correction details The following list contains the correction revision numbers for each affected branch. Branch/path Revision - ------------------------------------------------------------------------- stable/10/ r339984 releng/10.4/ r338981 stable/11/ r339983 releng/11.1/ r338981 releng/11.2/ r338981 - ------------------------------------------------------------------------- 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 advisory is available at -----BEGIN PGP SIGNATURE----- iQKSBAEBCgB9FiEE/A6HiuWv54gCjWNV05eS9J6n5cIFAlutKU5fFIAAAAAALgAo aXNzdWVyLWZwckBub3RhdGlvbnMub3BlbnBncC5maWZ0aGhvcnNlbWFuLm5ldEZD MEU4NzhBRTVBRkU3ODgwMjhENjM1NUQzOTc5MkY0OUVBN0U1QzIACgkQ05eS9J6n 5cJfGA/3XLR2dunxnQZYQvdpA8k9HA1zHfKFUMbTJqESIZPofvLnFJiw7gwDl0mF pMC5LCi+k+LIIsXPLzRk/7BUmoCt/hCbD7BOVuiYXhIZy0VgKhaOggSvOXYOsjNl JTJa5zGsKm4BUNhAkxcJtCO9i+gOShZ2fxiJ9SU7bO/gVl5HoMh56KWTLUBXX2jD vZfEvxJvllbvk6ST68jb7C0Ix47+idRO2hdfxVLyZfD1PsILIy6JThqKqsbGgqbA +ma7OnCigxwI0bds4nusi7vNu3IiFuzjBLfV9exW8kcRgyotOsmCfCjSOlOcEJvR gKcmqZccf1SMGFR336YwGB66xL56QwpgN+UZ/QhmBX15mqI/oAekd0W3fb3OmfvW bMiDo0MHmtZqiSnQyUOcCPRW5s0l8EHeWCVbjKX1ViqY6e4NdQajrjRUyXnOqcM5 vtTWAJ+BCc3Acg1V4nkjF7HNCUyGObKZcbDqK7M7p5+i/CFxJkCdKu0x8dsZRHL8 7V4SL1sb9OkPWjBxyzHuiQNGJfTgknDsIxvBYcdPVukTtGzrWH1skhdWL2O0CNvQ Quk2YQePQ/X4ICPIB3s+Yao5N8t0FoEM4Hus6nSCpNRyP5XpCaBISHbhG8Ay7yJr 1p0YkV22eQ5KXiNY6Qmof7S0S1p8IZlomO8J8I/yGuwqh2mkkQ== =uZtl -----END PGP SIGNATURE-----