openSUSE Leap 42.3: 2017:3193-1 Important: DoS and Info Leak in xen

This update for xen to version 4.9.1 (bsc#1027519) fixes several issues.

This new feature was added:

- Support migration of HVM domains larger than 1 TB

These security issues were fixed:

- bsc#1068187: Failure to recognize errors in the Populate on Demand (PoD)

code allowed for DoS (XSA-246)

- bsc#1068191: Missing p2m error checking in PoD code allowed unprivileged

guests to retain a writable mapping of freed memory leading to

information leaks, privilege escalation or DoS (XSA-247).

- CVE-2017-15289: The mode4and5 write functions allowed local OS guest

privileged users to cause a denial of service (out-of-bounds write

access and Qemu process crash) via vectors related to dst calculation

(bsc#1063123)

- CVE-2017-15597: A grant copy operation being done on a grant of a dying

domain allowed a malicious guest administrator to corrupt hypervisor

memory, allowing for DoS or potentially privilege escalation and

...