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Ubuntu: USN-5617-1 (CVE-2020-11740): Xen vulnerabilities

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Ubuntu: USN-5617-1 (CVE-2020-11740): Xen vulnerabilities

Severity
2
CVSS
(AV:L/AC:L/Au:N/C:P/I:N/A:N)
Published
04/14/2020
Created
09/21/2022
Added
09/20/2022
Modified
03/22/2023

Description

An issue was discovered in xenoprof in Xen through 4.13.x, allowing guest OS users (without active profiling) to obtain sensitive information about other guests. Unprivileged guests can request to map xenoprof buffers, even if profiling has not been enabled for those guests. These buffers were not scrubbed.

Solution(s)

  • ubuntu-upgrade-libxendevicemodel1
  • ubuntu-upgrade-libxenevtchn1
  • ubuntu-upgrade-libxengnttab1
  • ubuntu-upgrade-libxenmisc4-11
  • ubuntu-upgrade-xen-hypervisor-4-11-amd64
  • ubuntu-upgrade-xen-hypervisor-4-11-arm64
  • ubuntu-upgrade-xen-hypervisor-4-11-armhf
  • ubuntu-upgrade-xen-utils-4-11
  • ubuntu-upgrade-xen-utils-common
  • ubuntu-upgrade-xenstore-utils

References

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