-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ===================================================================== Red Hat Security Advisory Synopsis: Important: kernel security and bug fix update Advisory ID: RHSA-2017:1715-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2017:1715 Issue date: 2017-07-11 CVE Names: CVE-2017-7895 ===================================================================== 1. Summary: An update for kernel is now available for Red Hat Enterprise Linux 6.4 Advanced Update Support. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. 2. Relevant releases/architectures: Red Hat Enterprise Linux Server AUS (v. 6.4) - noarch, x86_64 Red Hat Enterprise Linux Server Optional AUS (v. 6.4) - x86_64 3. Description: The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix(es): * The NFSv2 and NFSv3 server implementations in the Linux kernel through 4.10.13 lacked certain checks for the end of a buffer. A remote attacker could trigger a pointer-arithmetic error or possibly cause other unspecified impacts using crafted requests related to fs/nfsd/nfs3xdr.c and fs/nfsd/nfsxdr.c. (CVE-2017-7895, Important) Red Hat would like to thank Ari Kauppi for reporting this issue. Bug Fix(es): * When upgrading to kernel with the fix for stack guard flaw, a crash could occur in Java Virtual Machine (JVM) environments, which attempted to implement their own stack guard page. With this update, the underlying source code has been fixed to consider the PROT_NONE mapping as a part of the stack, and the crash in JVM no longer occurs under the described circumstances. (BZ#1466815) 4. Solution: For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 The system must be rebooted for this update to take effect. 5. Bugs fixed (https://bugzilla.redhat.com/): 1446103 - CVE-2017-7895 kernel: NFSv3 server does not properly handle payload bounds checking of WRITE requests 6. Package List: Red Hat Enterprise Linux Server AUS (v. 6.4): Source: kernel-2.6.32-358.81.1.el6.src.rpm noarch: kernel-doc-2.6.32-358.81.1.el6.noarch.rpm kernel-firmware-2.6.32-358.81.1.el6.noarch.rpm x86_64: kernel-2.6.32-358.81.1.el6.x86_64.rpm kernel-debug-2.6.32-358.81.1.el6.x86_64.rpm kernel-debug-debuginfo-2.6.32-358.81.1.el6.x86_64.rpm kernel-debug-devel-2.6.32-358.81.1.el6.x86_64.rpm kernel-debuginfo-2.6.32-358.81.1.el6.x86_64.rpm kernel-debuginfo-common-x86_64-2.6.32-358.81.1.el6.x86_64.rpm kernel-devel-2.6.32-358.81.1.el6.x86_64.rpm kernel-headers-2.6.32-358.81.1.el6.x86_64.rpm perf-2.6.32-358.81.1.el6.x86_64.rpm perf-debuginfo-2.6.32-358.81.1.el6.x86_64.rpm python-perf-debuginfo-2.6.32-358.81.1.el6.x86_64.rpm Red Hat Enterprise Linux Server Optional AUS (v. 6.4): Source: kernel-2.6.32-358.81.1.el6.src.rpm x86_64: kernel-debug-debuginfo-2.6.32-358.81.1.el6.x86_64.rpm kernel-debuginfo-2.6.32-358.81.1.el6.x86_64.rpm kernel-debuginfo-common-x86_64-2.6.32-358.81.1.el6.x86_64.rpm perf-debuginfo-2.6.32-358.81.1.el6.x86_64.rpm python-perf-2.6.32-358.81.1.el6.x86_64.rpm python-perf-debuginfo-2.6.32-358.81.1.el6.x86_64.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/ 7. References: https://access.redhat.com/security/cve/CVE-2017-7895 https://access.redhat.com/security/updates/classification/#important 8. Contact: The Red Hat security contact is . More contact details at https://access.redhat.com/security/team/contact/ Copyright 2017 Red Hat, Inc. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iD8DBQFZZSA7XlSAg2UNWIIRArIGAJwM2gbyKvmyDPu6SIadKWCz8YlpxQCcCtbj +hisAhBSHH7YNRRQLOTN3Pk= =FMKb -----END PGP SIGNATURE----- -- RHSA-announce mailing list RHSA-announce@redhat.com https://www.redhat.com/mailman/listinfo/rhsa-announce