75 lines
2.9 KiB
Diff
75 lines
2.9 KiB
Diff
CVE-2007-0998 - remote compromise of dom0
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Rather than completely disabling QEMU's console (which would remove
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the "sendkey" command, among other useful things), remove all console
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commands that can read/write dom0's state.
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Index: xen-3.2-testing/tools/ioemu/monitor.c
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===================================================================
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--- xen-3.2-testing.orig/tools/ioemu/monitor.c
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+++ xen-3.2-testing/tools/ioemu/monitor.c
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@@ -1231,6 +1231,7 @@ static term_cmd_t term_cmds[] = {
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"device|all", "commit changes to the disk images (if -snapshot is used) or backing files" },
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{ "info", "s?", do_info,
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"subcommand", "show various information about the system state" },
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+#ifdef CONFIG_TRUSTED_CLIENT
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{ "q|quit", "", do_quit,
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"", "quit the emulator" },
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{ "eject", "-fB", do_eject,
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@@ -1241,6 +1242,7 @@ static term_cmd_t term_cmds[] = {
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"filename", "save screen into PPM image 'filename'" },
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{ "log", "s", do_log,
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"item1[,...]", "activate logging of the specified items to '/tmp/qemu.log'" },
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+#endif
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#ifndef CONFIG_DM
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{ "savevm", "s?", do_savevm,
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"tag|id", "save a VM snapshot. If no tag or id are provided, a new snapshot is created" },
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@@ -1274,12 +1276,14 @@ static term_cmd_t term_cmds[] = {
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{ "system_powerdown", "", do_system_powerdown,
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"", "send system power down event" },
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#endif /* !CONFIG_DM */
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+#ifdef CONFIG_TRUSTED_CLIENT
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{ "sum", "ii", do_sum,
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"addr size", "compute the checksum of a memory region" },
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{ "usb_add", "s", do_usb_add,
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"device", "add USB device (e.g. 'host:bus.addr' or 'host:vendor_id:product_id')" },
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{ "usb_del", "s", do_usb_del,
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"device", "remove USB device 'bus.addr'" },
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+#endif
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#ifndef CONFIG_DM
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{ "cpu", "i", do_cpu_set,
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"index", "set the default CPU" },
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@@ -1290,6 +1294,7 @@ static term_cmd_t term_cmds[] = {
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"state", "change mouse button state (1=L, 2=M, 4=R)" },
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{ "mouse_set", "i", do_mouse_set,
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"index", "set which mouse device receives events" },
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+#ifdef CONFIG_TRUSTED_CLIENT
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#ifdef HAS_AUDIO
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{ "wavcapture", "si?i?i?", do_wav_capture,
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"path [frequency bits channels]",
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@@ -1297,6 +1302,7 @@ static term_cmd_t term_cmds[] = {
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#endif
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{ "stopcapture", "i", do_stop_capture,
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"capture index", "stop capture" },
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+#endif
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#ifndef CONFIG_DM
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{ "memsave", "lis", do_memory_save,
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"addr size file", "save to disk virtual memory dump starting at 'addr' of size 'size'", },
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@@ -1339,6 +1345,7 @@ static term_cmd_t info_cmds[] = {
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#endif /* !CONFIG_DM */
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{ "usb", "", usb_info,
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"", "show guest USB devices", },
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+#ifdef CONFIG_TRUSTED_CLIENT
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{ "usbhost", "", usb_host_info,
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"", "show host USB devices", },
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{ "profile", "", do_info_profile,
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@@ -1355,6 +1362,7 @@ static term_cmd_t info_cmds[] = {
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{ "hvmiopage", "", sp_info,
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"", "show HVM device model shared page info" },
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#endif /* CONFIG_DM */
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+#endif
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{ NULL, NULL, },
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};
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