openSUSE Security Update : xen (openSUSE-2017-1071)

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 fixes several issues.

These security issues were fixed :

- CVE-2017-14316: Missing bound check in function
`alloc_heap_pages` for an internal array allowed
attackers using crafted hypercalls to execute arbitrary
code within Xen (XSA-231, bsc#1056278)

- CVE-2017-14318: The function __gnttab_cache_flush missed
a check for grant tables, allowing a malicious guest to
crash the host or for x86 PV guests to potentially
escalate privileges (XSA-232, bsc#1056280)

- CVE-2017-14317: A race in cxenstored may have cause a
double-free allowind for DoS of the xenstored daemon
(XSA-233, bsc#1056281).

- CVE-2017-14319: An error while handling grant mappings
allowed malicious or buggy x86 PV guest to escalate its
privileges or crash the hypervisor (XSA-234,
bsc#1056282).

These non-security issues were fixed :

- bsc#1057358: Fixed boot into SUSE Linux Enterprise 12.3
with secure boot

- bsc#1055695: Fixed restoring updates for HVM guests for
ballooned domUs

This update was imported from the SUSE:SLE-12-SP3:Update update
project.

See also :

https://bugzilla.opensuse.org/show_bug.cgi?id=1027519
https://bugzilla.opensuse.org/show_bug.cgi?id=1055695
https://bugzilla.opensuse.org/show_bug.cgi?id=1056278
https://bugzilla.opensuse.org/show_bug.cgi?id=1056280
https://bugzilla.opensuse.org/show_bug.cgi?id=1056281
https://bugzilla.opensuse.org/show_bug.cgi?id=1056282
https://bugzilla.opensuse.org/show_bug.cgi?id=1057358

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: 103291 ()

Bugtraq ID:

CVE ID: CVE-2017-14316
CVE-2017-14317
CVE-2017-14318
CVE-2017-14319

Ready to Amp Up Your Nessus Experience?

Get Nessus Professional to scan unlimited IPs, run compliance checks & more

Buy Nessus Professional Now