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Debian: CVE-2020-29485: xen -- security update

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Debian: CVE-2020-29485: xen -- security update

Severity
5
CVSS
(AV:L/AC:L/Au:N/C:N/I:N/A:C)
Published
12/15/2020
Created
12/17/2020
Added
12/17/2020
Modified
12/21/2020

Description

An issue was discovered in Xen 4.6 through 4.14.x. When acting upon a guest XS_RESET_WATCHES request, not all tracking information is freed. A guest can cause unbounded memory usage in oxenstored. This can lead to a system-wide DoS. Only systems using the Ocaml Xenstored implementation are vulnerable. Systems using the C Xenstored implementation are not vulnerable.

Solution(s)

  • debian-upgrade-xen

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