-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ===================================================================== Red Hat Security Advisory Synopsis: Important: kernel-rt security update Advisory ID: RHSA-2017:0295-01 Product: Red Hat Enterprise Linux Advisory URL: https://rhn.redhat.com/errata/RHSA-2017-0295.html Issue date: 2017-02-22 CVE Names: CVE-2017-6074 ===================================================================== 1. Summary: An update for kernel-rt is now available for Red Hat Enterprise Linux 7. 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 Realtime (v. 7) - noarch, x86_64 Red Hat Enterprise Linux for Real Time for NFV (v. 7) - noarch, x86_64 3. Description: The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements. Security Fix(es): * A use-after-free flaw was found in the way the Linux kernel's Datagram Congestion Control Protocol (DCCP) implementation freed SKB (socket buffer) resources for a DCCP_PKT_REQUEST packet when the IPV6_RECVPKTINFO option is set on the socket. A local, unprivileged user could use this flaw to alter the kernel memory, allowing them to escalate their privileges on the system. (CVE-2017-6074, Important) 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/): 1423071 - CVE-2017-6074 kernel: use after free in dccp protocol 6. Package List: Red Hat Enterprise Linux for Real Time for NFV (v. 7): Source: kernel-rt-3.10.0-514.6.1.rt56.430.el7.src.rpm noarch: kernel-rt-doc-3.10.0-514.6.1.rt56.430.el7.noarch.rpm x86_64: kernel-rt-3.10.0-514.6.1.rt56.430.el7.x86_64.rpm kernel-rt-debug-3.10.0-514.6.1.rt56.430.el7.x86_64.rpm kernel-rt-debug-debuginfo-3.10.0-514.6.1.rt56.430.el7.x86_64.rpm kernel-rt-debug-devel-3.10.0-514.6.1.rt56.430.el7.x86_64.rpm kernel-rt-debug-kvm-3.10.0-514.6.1.rt56.430.el7.x86_64.rpm kernel-rt-debug-kvm-debuginfo-3.10.0-514.6.1.rt56.430.el7.x86_64.rpm kernel-rt-debuginfo-3.10.0-514.6.1.rt56.430.el7.x86_64.rpm kernel-rt-debuginfo-common-x86_64-3.10.0-514.6.1.rt56.430.el7.x86_64.rpm kernel-rt-devel-3.10.0-514.6.1.rt56.430.el7.x86_64.rpm kernel-rt-kvm-3.10.0-514.6.1.rt56.430.el7.x86_64.rpm kernel-rt-kvm-debuginfo-3.10.0-514.6.1.rt56.430.el7.x86_64.rpm kernel-rt-trace-3.10.0-514.6.1.rt56.430.el7.x86_64.rpm kernel-rt-trace-debuginfo-3.10.0-514.6.1.rt56.430.el7.x86_64.rpm kernel-rt-trace-devel-3.10.0-514.6.1.rt56.430.el7.x86_64.rpm kernel-rt-trace-kvm-3.10.0-514.6.1.rt56.430.el7.x86_64.rpm kernel-rt-trace-kvm-debuginfo-3.10.0-514.6.1.rt56.430.el7.x86_64.rpm Red Hat Enterprise Linux Realtime (v. 7): Source: kernel-rt-3.10.0-514.6.1.rt56.430.el7.src.rpm noarch: kernel-rt-doc-3.10.0-514.6.1.rt56.430.el7.noarch.rpm x86_64: kernel-rt-3.10.0-514.6.1.rt56.430.el7.x86_64.rpm kernel-rt-debug-3.10.0-514.6.1.rt56.430.el7.x86_64.rpm kernel-rt-debug-debuginfo-3.10.0-514.6.1.rt56.430.el7.x86_64.rpm kernel-rt-debug-devel-3.10.0-514.6.1.rt56.430.el7.x86_64.rpm kernel-rt-debug-kvm-debuginfo-3.10.0-514.6.1.rt56.430.el7.x86_64.rpm kernel-rt-debuginfo-3.10.0-514.6.1.rt56.430.el7.x86_64.rpm kernel-rt-debuginfo-common-x86_64-3.10.0-514.6.1.rt56.430.el7.x86_64.rpm kernel-rt-devel-3.10.0-514.6.1.rt56.430.el7.x86_64.rpm kernel-rt-kvm-debuginfo-3.10.0-514.6.1.rt56.430.el7.x86_64.rpm kernel-rt-trace-3.10.0-514.6.1.rt56.430.el7.x86_64.rpm kernel-rt-trace-debuginfo-3.10.0-514.6.1.rt56.430.el7.x86_64.rpm kernel-rt-trace-devel-3.10.0-514.6.1.rt56.430.el7.x86_64.rpm kernel-rt-trace-kvm-debuginfo-3.10.0-514.6.1.rt56.430.el7.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-2017-6074 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 iD8DBQFYrbxbXlSAg2UNWIIRAj4VAJsGFb/B+2G0HtMNLXx8f0iX8IoangCgv+J7 bQ6xbf+bo8tazT+MCNvAfbs= =Jg0K -----END PGP SIGNATURE----- -- RHSA-announce mailing list RHSA-announce@redhat.com https://www.redhat.com/mailman/listinfo/rhsa-announce