RHSA-2017:1209 - Security Advisory
Important: rhev-hypervisor bug fix and enhancement update for RHEV 3.6.11
Security Advisory: Important
An update for rhev-hypervisor7 is now available for RHEV 3.X Hypervisor and Agents for RHEL-6 and RHEV 3.X Hypervisor and Agents for RHEL-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.
The rhev-hypervisor package provides a Red Hat Enterprise Virtualization
Hypervisor ISO disk image. The Red Hat Enterprise Virtualization Hypervisor
is a dedicated Kernel-based Virtual Machine (KVM) hypervisor. It includes
everything necessary to run and manage virtual machines: A subset of the
Red Hat Enterprise Linux operating environment and the Red Hat Enterprise
- 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)
Red Hat would like to thank Andrey Konovalov (Google) for reporting this issue.
Note: Red Hat Enterprise Virtualization Hypervisor is only available for
the Intel 64 and AMD64 architectures with virtualization extensions.
For details on how to apply this update, which includes the changes described in this advisory, refer to:
- Red Hat Virtualization 7 x86_64
- Red Hat Virtualization 6 x86_64
- BZ - 1423071 - CVE-2017-6074 kernel: use after free in dccp protocol
- BZ - 1434999 - Tracker bug for 3.6.11
Red Hat Virtualization 7
Red Hat Virtualization 6