Scientific Linux Security Update : qemu-kvm on SL7.x x86_64

This script is Copyright (C) 2017 Tenable Network Security, Inc.


Synopsis :

The remote Scientific Linux host is missing one or more security
updates.

Description :

Security Fix(es) :

- An out-of-bounds read-access flaw was found in the QEMU
emulator built with IP checksum routines. The flaw could
occur when computing a TCP/UDP packet's checksum,
because a QEMU function used the packet's payload length
without checking against the data buffer's size. A user
inside a guest could use this flaw to crash the QEMU
process (denial of service). (CVE-2016-2857)

Bug Fix(es) :

- Previously, rebooting a guest virtual machine more than
128 times in a short period of time caused the guest to
shut down instead of rebooting, because the virtqueue
was not cleaned properly. This update ensures that the
virtqueue is cleaned more reliably, which prevents the
described problem from occurring.

See also :

http://www.nessus.org/u?ef634dfe

Solution :

Update the affected packages.

Risk factor :

Low / CVSS Base Score : 2.1
(CVSS2#AV:L/AC:L/Au:N/C:N/I:N/A:P)

Family: Scientific Linux Local Security Checks

Nessus Plugin ID: 96600 ()

Bugtraq ID:

CVE ID: CVE-2016-2857

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