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Oracle Linux: CVE-2018-15688: ELSA-2019-0049: systemd security update (IMPORTANT) (Multiple Advisories)

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Oracle Linux: CVE-2018-15688: ELSA-2019-0049: systemd security update (IMPORTANT) (Multiple Advisories)

Severity
8
CVSS
(AV:A/AC:L/Au:N/C:C/I:C/A:C)
Published
10/26/2018
Created
07/23/2020
Added
07/21/2020
Modified
07/22/2024

Description

A buffer overflow vulnerability in the dhcp6 client of systemd allows a malicious dhcp6 server to overwrite heap memory in systemd-networkd. Affected releases are systemd: versions up to and including 239. It was discovered that systemd-network does not correctly keep track of a buffer size when constructing DHCPv6 packets. This flaw may lead to an integer underflow that can be used to produce an heap-based buffer overflow. A malicious host on the same network segment as the victim's one may advertise itself as a DHCPv6 server and exploit this flaw to cause a Denial of Service or potentially gain code execution on the victim's machine.

Solution(s)

  • oracle-linux-upgrade-libgudev1
  • oracle-linux-upgrade-libgudev1-devel
  • oracle-linux-upgrade-networkmanager
  • oracle-linux-upgrade-networkmanager-adsl
  • oracle-linux-upgrade-networkmanager-bluetooth
  • oracle-linux-upgrade-networkmanager-config-server
  • oracle-linux-upgrade-networkmanager-dispatcher-routing-rules
  • oracle-linux-upgrade-networkmanager-glib
  • oracle-linux-upgrade-networkmanager-glib-devel
  • oracle-linux-upgrade-networkmanager-libnm
  • oracle-linux-upgrade-networkmanager-libnm-devel
  • oracle-linux-upgrade-networkmanager-ovs
  • oracle-linux-upgrade-networkmanager-ppp
  • oracle-linux-upgrade-networkmanager-team
  • oracle-linux-upgrade-networkmanager-tui
  • oracle-linux-upgrade-networkmanager-wifi
  • oracle-linux-upgrade-networkmanager-wwan
  • oracle-linux-upgrade-postgresql-server
  • oracle-linux-upgrade-systemd
  • oracle-linux-upgrade-systemd-devel
  • oracle-linux-upgrade-systemd-journal-gateway
  • oracle-linux-upgrade-systemd-libs
  • oracle-linux-upgrade-systemd-networkd
  • oracle-linux-upgrade-systemd-python
  • oracle-linux-upgrade-systemd-resolved
  • oracle-linux-upgrade-systemd-sysv

References

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