-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ===================================================================== Red Hat Security Advisory Synopsis: Important: kernel security update Advisory ID: RHSA-2017:1483-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2017:1483 Issue date: 2017-06-19 CVE Names: CVE-2017-1000364 ===================================================================== 1. Summary: An update for kernel is now available for Red Hat Enterprise Linux 5.9 Long Life. 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 Long Life (v. 5.9 server) - i386, ia64, noarch, x86_64 3. Description: The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix(es): * A flaw was found in the way memory was being allocated on the stack for user space binaries. If heap (or different memory region) and stack memory regions were adjacent to each other, an attacker could use this flaw to jump over the stack guard gap, cause controlled memory corruption on process stack or the adjacent memory region, and thus increase their privileges on the system. This is a kernel-side mitigation which increases the stack guard gap size from one page to 1 MiB to make successful exploitation of this issue more difficult. (CVE-2017-1000364, Important) Red Hat would like to thank Qualys Research Labs for reporting this issue. 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/): 1461333 - CVE-2017-1000364 kernel: heap/stack gap jumping via unbounded stack allocations 6. Package List: Red Hat Enterprise Linux Long Life (v. 5.9 server): Source: kernel-2.6.18-348.33.2.el5.src.rpm i386: kernel-2.6.18-348.33.2.el5.i686.rpm kernel-PAE-2.6.18-348.33.2.el5.i686.rpm kernel-PAE-debuginfo-2.6.18-348.33.2.el5.i686.rpm kernel-PAE-devel-2.6.18-348.33.2.el5.i686.rpm kernel-debug-2.6.18-348.33.2.el5.i686.rpm kernel-debug-debuginfo-2.6.18-348.33.2.el5.i686.rpm kernel-debug-devel-2.6.18-348.33.2.el5.i686.rpm kernel-debuginfo-2.6.18-348.33.2.el5.i686.rpm kernel-debuginfo-common-2.6.18-348.33.2.el5.i686.rpm kernel-devel-2.6.18-348.33.2.el5.i686.rpm kernel-headers-2.6.18-348.33.2.el5.i386.rpm kernel-xen-2.6.18-348.33.2.el5.i686.rpm kernel-xen-debuginfo-2.6.18-348.33.2.el5.i686.rpm kernel-xen-devel-2.6.18-348.33.2.el5.i686.rpm ia64: kernel-2.6.18-348.33.2.el5.ia64.rpm kernel-debug-2.6.18-348.33.2.el5.ia64.rpm kernel-debug-debuginfo-2.6.18-348.33.2.el5.ia64.rpm kernel-debug-devel-2.6.18-348.33.2.el5.ia64.rpm kernel-debuginfo-2.6.18-348.33.2.el5.ia64.rpm kernel-debuginfo-common-2.6.18-348.33.2.el5.ia64.rpm kernel-devel-2.6.18-348.33.2.el5.ia64.rpm kernel-headers-2.6.18-348.33.2.el5.ia64.rpm kernel-xen-2.6.18-348.33.2.el5.ia64.rpm kernel-xen-debuginfo-2.6.18-348.33.2.el5.ia64.rpm kernel-xen-devel-2.6.18-348.33.2.el5.ia64.rpm noarch: kernel-doc-2.6.18-348.33.2.el5.noarch.rpm x86_64: kernel-2.6.18-348.33.2.el5.x86_64.rpm kernel-debug-2.6.18-348.33.2.el5.x86_64.rpm kernel-debug-debuginfo-2.6.18-348.33.2.el5.x86_64.rpm kernel-debug-devel-2.6.18-348.33.2.el5.x86_64.rpm kernel-debuginfo-2.6.18-348.33.2.el5.x86_64.rpm kernel-debuginfo-common-2.6.18-348.33.2.el5.x86_64.rpm kernel-devel-2.6.18-348.33.2.el5.x86_64.rpm kernel-headers-2.6.18-348.33.2.el5.x86_64.rpm kernel-xen-2.6.18-348.33.2.el5.x86_64.rpm kernel-xen-debuginfo-2.6.18-348.33.2.el5.x86_64.rpm kernel-xen-devel-2.6.18-348.33.2.el5.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-2017-1000364 https://access.redhat.com/security/updates/classification/#important https://access.redhat.com/security/vulnerabilities/stackguard 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 iD8DBQFZSDVTXlSAg2UNWIIRAiwFAJ0eUPcC+vrLeeKfhAqM2CT4r915LgCbBEVQ AV2+jVwecsF0cXAzIJeNPnM= =NNUh -----END PGP SIGNATURE----- -- RHSA-announce mailing list RHSA-announce@redhat.com https://www.redhat.com/mailman/listinfo/rhsa-announce