A memory leak was discovered in the backport of fixes for CVE-2018-16864 in Red Hat Enterprise Linux. Function dispatch_message_real() in journald-server.c does not free the memory allocated by set_iovec_field_free() to store the _CMDLINE= entry. A local attacker may use this flaw to make systemd-journald crash. This issue only affects versions shipped with Red Hat Enterprise since v219-62.2.
The product does not sufficiently track and release allocated memory after it has been used, which slowly consumes remaining memory.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Openshift_container_platform | Redhat | 3.11 (including) | 3.11 (including) |
| Enterprise_linux_desktop | Redhat | 7.0 (including) | 7.0 (including) |
| Enterprise_linux_server | Redhat | 7.0 (including) | 7.0 (including) |
| Enterprise_linux_server_aus | Redhat | 7.6 (including) | 7.6 (including) |
| Enterprise_linux_server_eus | Redhat | 7.6 (including) | 7.6 (including) |
| Enterprise_linux_workstation | Redhat | 7.0 (including) | 7.0 (including) |
| Red Hat Enterprise Linux 7 | RedHat | systemd-0:219-62.el7_6.3 | * |