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Ubuntu: (CVE-2020-15852): linux-oem-5.6 vulnerability

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Ubuntu: (CVE-2020-15852): linux-oem-5.6 vulnerability

Severity
5
CVSS
(AV:L/AC:L/Au:N/C:P/I:P/A:P)
Published
07/20/2020
Created
11/21/2024
Added
11/19/2024
Modified
11/19/2024

Description

An issue was discovered in the Linux kernel 5.5 through 5.7.9, as used in Xen through 4.13.x for x86 PV guests. An attacker may be granted the I/O port permissions of an unrelated task. This occurs because tss_invalidate_io_bitmap mishandling causes a loss of synchronization between the I/O bitmaps of TSS and Xen, aka CID-cadfad870154.

Solution(s)

  • ubuntu-upgrade-linux-oem-5-6

References

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