SUSE-SU-2019:3296-1

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SUSE-SU-2019:3296-1

Summary: Security update for xen

Details: This update for xen fixes the following issues: - CVE-2019-19581: Fixed a potential out of bounds on 32-bit Arm (bsc#1158003 XSA-307). - CVE-2019-19582: Fixed a potential infinite loop when x86 accesses to bitmaps with a compile time known size of 64 (bsc#1158003 XSA-307). - CVE-2019-19583: Fixed improper checks which could have allowed HVM/PVH guest userspace code to crash the guest,leading to a guest denial of service (bsc#1158004 XSA-308). - CVE-2019-19578: Fixed an issue where a malicious or buggy PV guest could have caused hypervisor crash resulting in denial of service affecting the entire host (bsc#1158005 XSA-309). - CVE-2019-19580: Fixed a privilege escalation where a malicious PV guest administrator could have been able to escalate their privilege to that of the host (bsc#1158006 XSA-310). - CVE-2019-19577: Fixed an issue where a malicious guest administrator could have caused Xen to access data structures while they are being modified leading to a crash (bsc#1158007 XSA-311).

References: https://www.suse.com/support/update/announcement/2019/suse-su-20193296-1/, https://bugzilla.suse.com/1158003, https://bugzilla.suse.com/1158004, https://bugzilla.suse.com/1158005, https://bugzilla.suse.com/1158006, https://bugzilla.suse.com/1158007, https://www.suse.com/security/cve/CVE-2019-19577, https://www.suse.com/security/cve/CVE-2019-19578, https://www.suse.com/security/cve/CVE-2019-19580, https://www.suse.com/security/cve/CVE-2019-19581, https://www.suse.com/security/cve/CVE-2019-19582, https://www.suse.com/security/cve/CVE-2019-19583