SUSE: 2017:2327-2 Important: Xen DoS and Escalation Risks
suse
November 16, 2017
An update that solves 6 vulnerabilities and has 5 fixes is An update that solves 6 vulnerabilities and has 5 fixes is An update that solves 6 vulnerabilities and has 5 fixes is now...
Summary
This update for xen fixes several issues. These security issues were fixed: - CVE-2017-12135: Unbounded recursion in grant table code allowed a malicious guest to crash the host or potentially escalate privileges/leak information (XSA-226, bsc#1051787). - CVE-2017-12137: Incorrectly-aligned updates to pagetables allowed for privilege escalation (XSA-227, bsc#1051788). - CVE-2017-12136: Race conditions with maptrack free list handling allows a malicious guest administrator to crash the host or escalate their privilege to that of the host (XSA-228, bsc#1051789). - CVE-2017-11434: The dhcp_decode function in slirp/bootp.c allowed local guest OS users to cause a denial of service (out-of-bounds read) via a crafted DHCP options string (bsc#1049578).
Topics Covered
References
#1002573 #1026236 #1027519 #1035231 #1046637
#1049578 #1051787 #1051788 #1051789 #1052686
#1055695
Cross- CVE-2017-10664 CVE-2017-11434 CVE-2017-12135
CVE-2017-12136 CVE-2017-12137 CVE-2017-12855
Affected Products:
SUSE Linux Enterprise Server 12-SP3
https://www.suse.com/security/cve/CVE-2017-10664.html
https://www.suse.com/security/cve/CVE-2017-11434.html
https://www.suse.com/security/cve/CVE-2017-12135.html
https://www.suse.com/security/cve/CVE-2017-12136.html
https://www.suse.com/security/cve/CVE-2017-12137.html
https://www.suse.com/security/cve/CVE-2017-12855.html
https://bugzilla.suse.com/1002573
https://bugzilla.suse.com/1026236
https://bugzilla.suse.com/1027519
https://bugzilla.suse.com/1035231
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Announcement ID: SUSE-SU-2017:2327-2
Rating: important
Topics Covered
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