ALT-PU-2018-2118-1

Package update kernel-image-un-def in branch p8

Version4.14.61-alt0.M80P.1

Published2018-08-10

Max severityHIGH

Severity:

Closed issues (2)

HIGH7.8

Уязвимость функции xen_failsafe_callback гипервизора Xen, позволяющая нарушителю вызвать отказ в обслуживании или повысить свои привилегии

Published: 2019-04-12Modified: 2024-06-18

CVSS 3.xHIGH 7.8

CVSS:3.x/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS 2.0MEDIUM 6.8

CVSS:2.0/AV:L/AC:L/Au:S/C:C/I:C/A:C

References

CVE-2018-14678

HIGH7.8

An issue was discovered in the Linux kernel through 4.17.11, as used in Xen through 4.11.x. The xen_failsafe_callback entry point in arch/x86/entry/entry_64.S does not properly maintain RBX, which allows local users to cause a denial of service (uninitialized memory usage and system crash). Within Xen, 64-bit x86 PV Linux guest OS users can trigger a guest OS crash or possibly gain privileges.

Published: 2018-07-28Modified: 2024-11-21

CVSS 2.0HIGH 7.2

CVSS:2.0/AV:L/AC:L/Au:N/C:C/I:C/A:C

CVSS 3.xHIGH 7.8

CVSS:3.x/CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References