openSUSE Security Update : xen (openSUSE-2017-492)

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


Synopsis :

The remote openSUSE host is missing a security update.

Description :

This update for xen to version 4.7.2 fixes the following issues :

These security issues were fixed :

- CVE-2017-7228: Broken check in memory_exchange()
permited PV guest breakout (bsc#1030442).

- XSA-206: Unprivileged guests issuing writes to xenstore
were able to stall progress of the control domain or
driver domain, possibly leading to a Denial of Service
(DoS) of the entire host (bsc#1030144).

- CVE-2017-6505: The ohci_service_ed_list function in
hw/usb/hcd-ohci.c allowed local guest OS users to cause
a denial of service (infinite loop) via vectors
involving the number of link endpoint list descriptors
(bsc#1028235).

These non-security issues were fixed :

- bsc#1015348: libvirtd didn't not start during boot

- bsc#1014136: kdump couldn't dump a kernel on SLES12-SP2
with Xen hypervisor.

- bsc#1026236: Fixed paravirtualized performance

- bsc#1022555: Timeout in 'execution of
/etc/xen/scripts/block add'

- bsc#1029827: Forward port xenstored

- bsc#1029128: Make xen to really produce xen.efi with
gcc48

This update was imported from the SUSE:SLE-12-SP2:Update update
project.

See also :

https://bugzilla.opensuse.org/show_bug.cgi?id=1014136
https://bugzilla.opensuse.org/show_bug.cgi?id=1015348
https://bugzilla.opensuse.org/show_bug.cgi?id=1022555
https://bugzilla.opensuse.org/show_bug.cgi?id=1026236
https://bugzilla.opensuse.org/show_bug.cgi?id=1027519
https://bugzilla.opensuse.org/show_bug.cgi?id=1028235
https://bugzilla.opensuse.org/show_bug.cgi?id=1029128
https://bugzilla.opensuse.org/show_bug.cgi?id=1029827
https://bugzilla.opensuse.org/show_bug.cgi?id=1030144
https://bugzilla.opensuse.org/show_bug.cgi?id=1030442

Solution :

Update the affected xen packages.

Risk factor :

High / CVSS Base Score : 7.2
(CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C)

Family: SuSE Local Security Checks

Nessus Plugin ID: 99559 ()

Bugtraq ID:

CVE ID: CVE-2017-6505
CVE-2017-7228

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