Описание
Security update for 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 information leaks (bsc#1061075).
This non-security issue was fixed:
- bsc#1055047: Fixed --initrd-inject option in virt-install
This update was imported from the SUSE:SLE-12-SP3:Update update project.
Список пакетов
openSUSE Leap 42.3
Ссылки
- E-Mail link for openSUSE-SU-2017:3193-1
- SUSE Security Ratings
Описание
The mode4and5 write functions in hw/display/cirrus_vga.c in Qemu allow 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.
Затронутые продукты
Ссылки
- CVE-2017-15289
- SUSE Bug 1063122
- SUSE Bug 1063123
- SUSE Bug 1178658
Описание
An issue was discovered in Xen through 4.9.x. Grant copying code made an implication that any grant pin would be accompanied by a suitable page reference. Other portions of code, however, did not match up with that assumption. When such a grant copy operation is being done on a grant of a dying domain, the assumption turns out wrong. A malicious guest administrator can cause hypervisor memory corruption, most likely resulting in host crash and a Denial of Service. Privilege escalation and information leaks cannot be ruled out.
Затронутые продукты
Ссылки
- CVE-2017-15597
- SUSE Bug 1061075