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[security-announce] openSUSE-SU-2017:1826-1: important: Security update for xen
openSUSE Security Update: Security update for xen

Announcement ID: openSUSE-SU-2017:1826-1
Rating: important
References: #1027519 #1035642 #1037243 #1042160 #1042882
#1042893 #1042915 #1042923 #1042924 #1042931
Cross-References: CVE-2017-10912 CVE-2017-10913 CVE-2017-10914
CVE-2017-10915 CVE-2017-10917 CVE-2017-10918
CVE-2017-10920 CVE-2017-10921 CVE-2017-10922
CVE-2017-8309 CVE-2017-9330
Affected Products:
openSUSE Leap 42.2

An update that fixes 11 vulnerabilities is now available.


This update for xen fixes several issues.

These security issues were fixed:

- CVE-2017-10912: Page transfer might have allowed PV guest to elevate
privilege (XSA-217, bsc#1042882)
- CVE-2017-10913 CVE-2017-10914: Races in the grant table unmap code
allowed for informations leaks and potentially privilege escalation
(XSA-218, bsc#1042893)
- CVE-2017-10915: Insufficient reference counts during shadow emulation
allowed a malicious pair of guest to elevate their privileges to the
privileges that XEN runs under (XSA-219, bsc#1042915)
- CVE-2017-10917: Missing NULL pointer check in event channel poll allows
guests to DoS the host (XSA-221, bsc#1042924)
- CVE-2017-10918: Stale P2M mappings due to insufficient error checking
allowed malicious guest to leak information or elevate privileges
(XSA-222, bsc#1042931)
- CVE-2017-10920, CVE-2017-10921, CVE-2017-10922: Grant table operations
mishandled reference counts allowing malicious guests to escape
(XSA-224, bsc#1042938)
- CVE-2017-9330: USB OHCI Emulation in qemu allowed local guest OS users
to cause a denial of service (infinite loop) by leveraging an incorrect
return value (bsc#1042160)
- CVE-2017-8309: Memory leak in the audio/audio.c allowed remote attackers
to cause a denial of service (memory consumption) by repeatedly starting
and stopping audio capture (bsc#1037243)
- PKRU and BND* leakage between vCPU-s might have leaked information to
other guests (XSA-220, bsc#1042923)

These non-security issues were fixed:

- bsc#1027519: Included various upstream patches
- bsc#1035642: Ensure that rpmbuild works

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

Patch Instructions:

To install this openSUSE Security Update use YaST online_update.
Alternatively you can run the command listed for your product:

- openSUSE Leap 42.2:

zypper in -t patch openSUSE-2017-799=1

To bring your system up-to-date, use "zypper patch".

Package List:

- openSUSE Leap 42.2 (i586 x86_64):


- openSUSE Leap 42.2 (x86_64):



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