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Oracle Linux: (CVE-2019-3844) ELSA-2020-1794: systemd security, bug fix, and enhancement update

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Oracle Linux: (CVE-2019-3844) ELSA-2020-1794: systemd security, bug fix, and enhancement update

Severity
5
CVSS
(AV:L/AC:L/Au:N/C:P/I:P/A:P)
Published
04/26/2019
Created
10/06/2022
Added
10/05/2022
Modified
10/05/2022

Description

It was discovered that a systemd service that uses DynamicUser property can get new privileges through the execution of SUID binaries, which would allow to create binaries owned by the service transient group with the setgid bit set. A local attacker may use this flaw to access resources that will be owned by a potentially different service in the future, when the GID will be recycled.

Solution(s)

  • oracle-linux-upgrade-systemd
  • oracle-linux-upgrade-systemd-container
  • oracle-linux-upgrade-systemd-devel
  • oracle-linux-upgrade-systemd-journal-remote
  • oracle-linux-upgrade-systemd-libs
  • oracle-linux-upgrade-systemd-pam
  • oracle-linux-upgrade-systemd-tests
  • oracle-linux-upgrade-systemd-udev

References

  • ELSA-2020-1794
  • USN-4269-1
  • CVE-2019-3844

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