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Sicherheit: Mehrere Probleme in xen
Aktuelle Meldungen Distributionen
Name: Mehrere Probleme in xen
ID: SUSE-SU-2018:3230-1
Distribution: SUSE
Plattformen: SUSE Linux Enterprise Server 12-SP2-BCL
Datum: Fr, 19. Oktober 2018, 00:52
Referenzen: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-10471
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-8897
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-10472
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-5754
Applikationen: Xen

Originalnachricht

   SUSE Security Update: Security update for xen
______________________________________________________________________________

Announcement ID: SUSE-SU-2018:3230-1
Rating: important
References: #1027519 #1086039 #1089152 #1089635 #1090820
#1090822 #1090823
Cross-References: CVE-2017-5754 CVE-2018-10471 CVE-2018-10472
CVE-2018-8897
Affected Products:
SUSE Linux Enterprise Server 12-SP2-BCL
______________________________________________________________________________

An update that solves four vulnerabilities and has three
fixes is now available.

Description:

This update for xen fixes several issues.

These security issues were fixed:

- CVE-2018-8897: Prevent mishandling of debug exceptions on x86 (XSA-260,
bsc#1090820)
- Handle HPET timers in IO-APIC mode correctly to prevent malicious or
buggy HVM guests from causing a hypervisor crash or potentially
privilege escalation/information leaks (XSA-261, bsc#1090822)
- Prevent unbounded loop, induced by qemu allowing an attacker to
permanently keep a physical CPU core busy (XSA-262, bsc#1090823)
- CVE-2018-10472: x86 HVM guest OS users (in certain configurations) were
able to read arbitrary dom0 files via QMP live insertion of a CDROM, in
conjunction with specifying the target file as the backing file of a
snapshot (bsc#1089152).
- CVE-2018-10471: x86 PV guest OS users were able to cause a denial of
service (out-of-bounds zero write and hypervisor crash) via unexpected
INT 80 processing, because of an incorrect fix for CVE-2017-5754
(bsc#1089635).

These non-security issues were fixed:

- bsc#1086039: Ensure that Dom0 does represent DomU cpu flags correctly
- bsc#1027519: Fixed shadow mode guests


Patch Instructions:

To install this SUSE Security Update use the SUSE recommended installation
methods
like YaST online_update or "zypper patch".

Alternatively you can run the command listed for your product:

- SUSE Linux Enterprise Server 12-SP2-BCL:

zypper in -t patch SUSE-SLE-SERVER-12-SP2-BCL-2018-841=1



Package List:

- SUSE Linux Enterprise Server 12-SP2-BCL (x86_64):

xen-4.7.5_02-43.30.1
xen-debugsource-4.7.5_02-43.30.1
xen-doc-html-4.7.5_02-43.30.1
xen-libs-32bit-4.7.5_02-43.30.1
xen-libs-4.7.5_02-43.30.1
xen-libs-debuginfo-32bit-4.7.5_02-43.30.1
xen-libs-debuginfo-4.7.5_02-43.30.1
xen-tools-4.7.5_02-43.30.1
xen-tools-debuginfo-4.7.5_02-43.30.1
xen-tools-domU-4.7.5_02-43.30.1
xen-tools-domU-debuginfo-4.7.5_02-43.30.1


References:

https://www.suse.com/security/cve/CVE-2017-5754.html
https://www.suse.com/security/cve/CVE-2018-10471.html
https://www.suse.com/security/cve/CVE-2018-10472.html
https://www.suse.com/security/cve/CVE-2018-8897.html
https://bugzilla.suse.com/1027519
https://bugzilla.suse.com/1086039
https://bugzilla.suse.com/1089152
https://bugzilla.suse.com/1089635
https://bugzilla.suse.com/1090820
https://bugzilla.suse.com/1090822
https://bugzilla.suse.com/1090823

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