hf7759 resolves Xen Security Advisory XSA-25, where an Out-of-memory error can occur due to a malicious kernel/ramdisk.
hf7759 is a mandatory hotfix for CA AppLogic® 3.5.19 when used for Xen-based grids (ESX-based grids are not affected by this hotfix). hf7759 also includes hf7611 which fixes several Xen Security Advisories. If hf7759 is installed, do not install hf7611.
This hotfix is only for CA AppLogic® 3.5.19 Xen-based grids (and may not be used with any other CA AppLogic® version). This hotfix replaces files on the servers of the grid. Therefore, a grid reboot is required after applying this hotfix. If this hotfix is installed on a grid and afterwards a new server is added to the grid, this hotfix is automatically installed on the newly added server, however the newly added server must be rebooted for the hotfix to take effect. If a Xen-based grid is created and hf7759 is installed during the grid creation process, the grid needs to be rebooted after the grid creation has completed in order for the hotfix to take effect.
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