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Ubuntu: USN-4269-1 (CVE-2020-1712): systemd vulnerabilities

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Ubuntu: USN-4269-1 (CVE-2020-1712): systemd vulnerabilities

Severity
5
CVSS
(AV:L/AC:L/Au:N/C:P/I:P/A:P)
Published
02/05/2020
Created
02/08/2020
Added
02/06/2020
Modified
03/22/2023

Description

A heap use-after-free vulnerability was found in systemd before version v245-rc1, where asynchronous Polkit queries are performed while handling dbus messages. A local unprivileged attacker can abuse this flaw to crash systemd services or potentially execute code and elevate their privileges, by sending specially crafted dbus messages.

Solution(s)

  • ubuntu-upgrade-systemd

References

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