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- CVEs with nessus.description==This update for xen fixes several issues. This new feature was
included :
- add script and sysv service to watch for vcpu
online/offline events in a HVM domU These security
issues were fixed :
- CVE-2017-5753, CVE-2017-5715, CVE-2017-5754: Prevent
information leaks via side effects of speculative
execution, aka 'Spectre' and 'Meltdown' attacks
(bsc#1074562, bsc#1068032)
- CVE-2018-5683: The vga_draw_text function allowed local
OS guest privileged users to cause a denial of service
(out-of-bounds read and QEMU process crash) by
leveraging improper memory address validation
(bsc#1076116).
- CVE-2017-18030: The cirrus_invalidate_region function
allowed local OS guest privileged users to cause a
denial of service (out-of-bounds array access and QEMU
process crash) via vectors related to negative pitch
(bsc#1076180).
- CVE-2017-15595: x86 PV guest OS users were able to cause
a DoS (unbounded recursion, stack consumption, and
hypervisor crash) or possibly gain privileges via
crafted page-table stacking (bsc#1061081)
- CVE-2017-17566: Prevent PV guest OS users to cause a
denial of service (host OS crash) or gain host OS
privileges in shadow mode by mapping a certain auxiliary
page (bsc#1070158).
- CVE-2017-17563: Prevent guest OS users to cause a denial
of service (host OS crash) or gain host OS privileges by
leveraging an incorrect mask for reference-count
overflow checking in shadow mode (bsc#1070159).
- CVE-2017-17564: Prevent guest OS users to cause a denial
of service (host OS crash) or gain host OS privileges by
leveraging incorrect error handling for reference
counting in shadow mode (bsc#1070160).
- CVE-2017-17565: Prevent PV guest OS users to cause a
denial of service (host OS crash) if shadow mode and
log-dirty mode are in place, because of an incorrect
assertion related to M2P (bsc#1070163).
- Added missing intermediate preemption checks for guest
requesting removal of memory. This allowed malicious
guest administrator to cause denial of service due to
the high cost of this operation (bsc#1080635).
- Because of XEN not returning the proper error messages
when transitioning grant tables from v2 to v1 a
malicious guest was able to cause DoS or potentially
allowed for privilege escalation as well as information
leaks (bsc#1080662).
The update package also includes non-security fixes. See advisory for
details.
Note that Tenable Network Security has extracted the preceding
description block directly from the SUSE security advisory. Tenable
has attempted to automatically clean and format it as much as possible
without introducing additional issues.
Max CVSS | 0 |
Min CVSS | 0 |
Total Count | 2 |
| ID | CVSS | Summary | Last (major) update | Published |
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