SUSE 11-SP4: 2016-3174-1 Important: Xen Privilege Escalation and DoS
suse
December 16, 2016
An update that fixes 16 vulnerabilities is now available
Summary
This update for xen fixes several issues. These security issues were fixed: - CVE-2016-9637: ioport array overflow allowing a malicious guest administrator can escalate their privilege to that of the host (bsc#1011652) - CVE-2016-9386: x86 null segments were not always treated as unusable allowing an unprivileged guest user program to elevate its privilege to that of the guest operating system. Exploit of this vulnerability is easy on Intel and more complicated on AMD (bsc#1009100) - CVE-2016-9382: x86 task switch to VM86 mode was mis-handled, allowing a unprivileged guest process to escalate its privilege to that of the guest operating system on AMD hardware. On Intel hardware a malicious unprivileged guest process can crash the guest (bsc#1009103)
References
#1000106 #1000893 #1003030 #1003032 #1004016
#1005004 #1005005 #1007157 #1007160 #1009100
#1009103 #1009104 #1009107 #1009109 #1009111
#1011652
Cross- CVE-2016-7777 CVE-2016-7908 CVE-2016-7909
CVE-2016-8576 CVE-2016-8667 CVE-2016-8669
CVE-2016-8909 CVE-2016-8910 CVE-2016-9379
CVE-2016-9380 CVE-2016-9381 CVE-2016-9382
CVE-2016-9383 CVE-2016-9385 CVE-2016-9386
CVE-2016-9637
Affected Products:
SUSE Linux Enterprise Software Development Kit 11-SP4
SUSE Linux Enterprise Server 11-SP4
SUSE Linux Enterprise Debuginfo 11-SP4
https://www.suse.com/security/cve/CVE-2016-7777.html
https://www.suse.com/security/cve/CVE-2016-7908.html
https://www.suse.com/security/cve/CVE-2016-7909.html
https://www.suse.com/security/cve/CVE-2016-8576.html
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Announcement ID: SUSE-SU-2016:3174-1
Rating: important
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