All errata/sisyphus/ALT-PU-2017-3625-1
ALT-PU-2017-3625-1

Package update xen in branch sisyphus

Version4.8.2-alt1.S1
Task#192675
Published2017-10-30
Max severityCRITICAL
Severity:

Closed issues (26)

BDU:2017-01291
HIGH7.2

Уязвимость гипервизора Xen, позволяющая нарушителю выполнить произвольный код

Published: 2017-06-05Modified: 2021-03-23
CVSS 2.0HIGH 7.2
CVSS:2.0/AV:L/AC:L/Au:N/C:C/I:C/A:C
References
BDU:2017-01635
HIGH7.5

Уязвимость компонента grant-table гипервизора Xen, позволяющая нарушителю получить конфиденциальную информацию или повысить свои привилегии

Published: 2017-07-14Modified: 2021-03-23
CVSS 2.0HIGH 7.5
CVSS:2.0/AV:N/AC:L/Au:N/C:P/I:P/A:P
References
BDU:2017-01636
CRITICAL10.0

Уязвимость гипервизора Xen, позволяющая нарушителю получить привилегированный доступ к хосту

Published: 2017-07-14Modified: 2021-03-23
CVSS 2.0CRITICAL 10.0
CVSS:2.0/AV:N/AC:L/Au:N/C:C/I:C/A:C
References
BDU:2017-01637
CRITICAL10.0

Уязвимость гипервизора Xen, позволяющая нарушителю получить привилегированный доступ к хосту

Published: 2017-07-14Modified: 2021-03-23
CVSS 2.0CRITICAL 10.0
CVSS:2.0/AV:N/AC:L/Au:N/C:C/I:C/A:C
References
BDU:2017-01638
CRITICAL9.4

Уязвимость гипервизора Xen, позволяющая нарушителю получить конфиденциальную информацию или вызвать отказ в обслуживании

Published: 2017-07-14Modified: 2021-03-23
CVSS 2.0CRITICAL 9.4
CVSS:2.0/AV:N/AC:L/Au:N/C:C/I:N/A:C
References
BDU:2017-01639
CRITICAL10.0

Уязвимость компонента grant-table гипервизора Xen, позволяющая нарушителю вызвать отказ в обслуживании или получить привилегированный доступ к хосту

Published: 2017-07-14Modified: 2024-11-28
CVSS 2.0CRITICAL 10.0
CVSS:2.0/AV:N/AC:L/Au:N/C:C/I:C/A:C
References
BDU:2017-01640
CRITICAL10.0

Уязвимость гипервизора Xen, позволяющая нарушителю вызвать отказ в обслуживании или получить привилегированный доступ к хосту

Published: 2017-07-14Modified: 2021-03-23
CVSS 2.0CRITICAL 10.0
CVSS:2.0/AV:N/AC:L/Au:N/C:C/I:C/A:C
References
CVE-2017-10912
CRITICAL10.0

Xen through 4.8.x mishandles page transfer, which allows guest OS users to obtain privileged host OS access, aka XSA-217.

Published: 2017-07-05Modified: 2025-04-20
CVSS 2.0CRITICAL 10.0
CVSS:2.0/AV:N/AC:L/Au:N/C:C/I:C/A:C
CVSS 3.xCRITICAL 10.0
CVSS:3.x/CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
References
CVE-2017-10913
CRITICAL9.8

The grant-table feature in Xen through 4.8.x provides false mapping information in certain cases of concurrent unmap calls, which allows backend attackers to obtain sensitive information or gain privileges, aka XSA-218 bug 1.

Published: 2017-07-05Modified: 2025-04-20
CVSS 2.0HIGH 7.5
CVSS:2.0/AV:N/AC:L/Au:N/C:P/I:P/A:P
CVSS 3.xCRITICAL 9.8
CVSS:3.x/CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
References
CVE-2017-10914
HIGH8.1

The grant-table feature in Xen through 4.8.x has a race condition leading to a double free, which allows guest OS users to cause a denial of service (memory consumption), or possibly obtain sensitive information or gain privileges, aka XSA-218 bug 2.

Published: 2017-07-05Modified: 2025-04-20
CVSS 2.0MEDIUM 6.8
CVSS:2.0/AV:N/AC:M/Au:N/C:P/I:P/A:P
CVSS 3.xHIGH 8.1
CVSS:3.x/CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
References
CVE-2017-10915
CRITICAL9.0

The shadow-paging feature in Xen through 4.8.x mismanages page references and consequently introduces a race condition, which allows guest OS users to obtain Xen privileges, aka XSA-219.

Published: 2017-07-05Modified: 2025-04-20
CVSS 2.0MEDIUM 6.8
CVSS:2.0/AV:N/AC:M/Au:N/C:P/I:P/A:P
CVSS 3.xCRITICAL 9.0
CVSS:3.x/CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
References
CVE-2017-10916
HIGH7.5

The vCPU context-switch implementation in Xen through 4.8.x improperly interacts with the Memory Protection Extensions (MPX) and Protection Key (PKU) features, which makes it easier for guest OS users to defeat ASLR and other protection mechanisms, aka XSA-220.

Published: 2017-07-05Modified: 2025-04-20
CVSS 2.0MEDIUM 5.0
CVSS:2.0/AV:N/AC:L/Au:N/C:P/I:N/A:N
CVSS 3.xHIGH 7.5
CVSS:3.x/CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
References
CVE-2017-10917
CRITICAL9.1

Xen through 4.8.x does not validate the port numbers of polled event channel ports, which allows guest OS users to cause a denial of service (NULL pointer dereference and host OS crash) or possibly obtain sensitive information, aka XSA-221.

Published: 2017-07-05Modified: 2025-04-20
CVSS 2.0CRITICAL 9.4
CVSS:2.0/AV:N/AC:L/Au:N/C:C/I:N/A:C
CVSS 3.xCRITICAL 9.1
CVSS:3.x/CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
References
CVE-2017-10918
CRITICAL10.0

Xen through 4.8.x does not validate memory allocations during certain P2M operations, which allows guest OS users to obtain privileged host OS access, aka XSA-222.

Published: 2017-07-05Modified: 2025-04-20
CVSS 2.0CRITICAL 10.0
CVSS:2.0/AV:N/AC:L/Au:N/C:C/I:C/A:C
CVSS 3.xCRITICAL 10.0
CVSS:3.x/CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
References
CVE-2017-10919
MEDIUM6.5

Xen through 4.8.x mishandles virtual interrupt injection, which allows guest OS users to cause a denial of service (hypervisor crash), aka XSA-223.

Published: 2017-07-05Modified: 2025-04-20
CVSS 2.0MEDIUM 5.0
CVSS:2.0/AV:N/AC:L/Au:N/C:N/I:N/A:P
CVSS 3.xMEDIUM 6.5
CVSS:3.x/CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
References
CVE-2017-10920
CRITICAL10.0

The grant-table feature in Xen through 4.8.x mishandles a GNTMAP_device_map and GNTMAP_host_map mapping, when followed by only a GNTMAP_host_map unmapping, which allows guest OS users to cause a denial of service (count mismanagement and memory corruption) or obtain privileged host OS access, aka XSA-224 bug 1.

Published: 2017-07-05Modified: 2025-04-20
CVSS 2.0CRITICAL 10.0
CVSS:2.0/AV:N/AC:L/Au:N/C:C/I:C/A:C
CVSS 3.xCRITICAL 10.0
CVSS:3.x/CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
References
CVE-2017-10921
CRITICAL10.0

The grant-table feature in Xen through 4.8.x does not ensure sufficient type counts for a GNTMAP_device_map and GNTMAP_host_map mapping, which allows guest OS users to cause a denial of service (count mismanagement and memory corruption) or obtain privileged host OS access, aka XSA-224 bug 2.

Published: 2017-07-05Modified: 2025-04-20
CVSS 2.0CRITICAL 10.0
CVSS:2.0/AV:N/AC:L/Au:N/C:C/I:C/A:C
CVSS 3.xCRITICAL 10.0
CVSS:3.x/CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
References
CVE-2017-10922
HIGH7.5

The grant-table feature in Xen through 4.8.x mishandles MMIO region grant references, which allows guest OS users to cause a denial of service (loss of grant trackability), aka XSA-224 bug 3.

Published: 2017-07-05Modified: 2025-04-20
CVSS 2.0MEDIUM 5.0
CVSS:2.0/AV:N/AC:L/Au:N/C:N/I:N/A:P
CVSS 3.xHIGH 7.5
CVSS:3.x/CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
References
CVE-2017-10923
MEDIUM6.5

Xen through 4.8.x does not validate a vCPU array index upon the sending of an SGI, which allows guest OS users to cause a denial of service (hypervisor crash), aka XSA-225.

Published: 2017-07-05Modified: 2025-04-20
CVSS 2.0MEDIUM 5.0
CVSS:2.0/AV:N/AC:L/Au:N/C:N/I:N/A:P
CVSS 3.xMEDIUM 6.5
CVSS:3.x/CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
References
CVE-2017-12136
HIGH7.8

Race condition in the grant table code in Xen 4.6.x through 4.9.x allows local guest OS administrators to cause a denial of service (free list corruption and host crash) or gain privileges on the host via vectors involving maptrack free list handling.

Published: 2017-08-24Modified: 2025-04-20
CVSS 2.0MEDIUM 6.9
CVSS:2.0/AV:L/AC:M/Au:N/C:C/I:C/A:C
CVSS 3.xHIGH 7.8
CVSS:3.x/CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
References
CVE-2017-12855
MEDIUM6.5

Xen maintains the _GTF_{read,writ}ing bits as appropriate, to inform the guest that a grant is in use. A guest is expected not to modify the grant details while it is in use, whereas the guest is free to modify/reuse the grant entry when it is not in use. Under some circumstances, Xen will clear the status bits too early, incorrectly informing the guest that the grant is no longer in use. A guest may prematurely believe that a granted frame is safely private again, and reuse it in a way which contains sensitive information, while the domain on the far end of the grant is still using the grant. Xen 4.9, 4.8, 4.7, 4.6, and 4.5 are affected.

Published: 2017-08-15Modified: 2025-04-20
CVSS 2.0LOW 2.1
CVSS:2.0/AV:L/AC:L/Au:N/C:P/I:N/A:N
CVSS 3.xMEDIUM 6.5
CVSS:3.x/CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
References
CVE-2017-14318
MEDIUM6.5

An issue was discovered in Xen 4.5.x through 4.9.x. The function `__gnttab_cache_flush` handles GNTTABOP_cache_flush grant table operations. It checks to see if the calling domain is the owner of the page that is to be operated on. If it is not, the owner's grant table is checked to see if a grant mapping to the calling domain exists for the page in question. However, the function does not check to see if the owning domain actually has a grant table or not. Some special domains, such as `DOMID_XEN`, `DOMID_IO` and `DOMID_COW` are created without grant tables. Hence, if __gnttab_cache_flush operates on a page owned by these special domains, it will attempt to dereference a NULL pointer in the domain struct.

Published: 2017-09-12Modified: 2025-04-20
CVSS 2.0MEDIUM 4.9
CVSS:2.0/AV:L/AC:L/Au:N/C:N/I:N/A:C
CVSS 3.xMEDIUM 6.5
CVSS:3.x/CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
References
CVE-2017-14431
MEDIUM5.5

Memory leak in Xen 3.3 through 4.8.x allows guest OS users to cause a denial of service (ARM or x86 AMD host OS memory consumption) by continually rebooting, because certain cleanup is skipped if no pass-through device was ever assigned, aka XSA-207.

Published: 2017-09-13Modified: 2025-04-20
CVSS 2.0MEDIUM 4.9
CVSS:2.0/AV:L/AC:L/Au:N/C:N/I:N/A:C
CVSS 3.xMEDIUM 5.5
CVSS:3.x/CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
References
CVE-2017-15591
MEDIUM6.5

An issue was discovered in Xen 4.5.x through 4.9.x allowing attackers (who control a stub domain kernel or tool stack) to cause a denial of service (host OS crash) because of a missing comparison (of range start to range end) within the DMOP map/unmap implementation.

Published: 2017-10-18Modified: 2025-04-20
CVSS 2.0MEDIUM 4.9
CVSS:2.0/AV:L/AC:L/Au:N/C:N/I:N/A:C
CVSS 3.xMEDIUM 6.5
CVSS:3.x/CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
References
CVE-2017-8903
HIGH8.8

Xen through 4.8.x on 64-bit platforms mishandles page tables after an IRET hypercall, which might allow PV guest OS users to execute arbitrary code on the host OS, aka XSA-213.

Published: 2017-05-11Modified: 2025-04-20
CVSS 2.0HIGH 7.2
CVSS:2.0/AV:L/AC:L/Au:N/C:C/I:C/A:C
CVSS 3.xHIGH 8.8
CVSS:3.x/CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
References
CVE-2017-8904
HIGH8.8

Xen through 4.8.x mishandles the "contains segment descriptors" property during GNTTABOP_transfer (aka guest transfer) operations, which might allow PV guest OS users to execute arbitrary code on the host OS, aka XSA-214.

Published: 2017-05-11Modified: 2025-04-20
CVSS 2.0MEDIUM 6.8
CVSS:2.0/AV:L/AC:L/Au:S/C:C/I:C/A:C
CVSS 3.xHIGH 8.8
CVSS:3.x/CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
References