39134eb9d2
on invalid state load CVE-2013-4539-qemut-tsc210x-fix-buffer-overrun-on-invalid-state-load.patch - bsc#962632 - VUL-0: CVE-2015-1779: xen: vnc: insufficient resource limiting in VNC websockets decoder CVE-2015-1779-qemuu-limit-size-of-HTTP-headers-from-websockets-clients.patch CVE-2015-1779-qemuu-incrementally-decode-websocket-frames.patch - bsc#962642 - VUL-0: CVE-2013-4537: xen: ssi-sd: buffer overrun on invalid state load CVE-2013-4537-qemut-ssi-sd-fix-buffer-overrun-on-invalid-state-load.patch - bsc#962627 - VUL-0: CVE-2014-7815: xen: vnc: insufficient bits_per_pixel from the client sanitization CVE-2014-7815-qemut-vnc-sanitize-bits_per_pixel-from-the-client.patch - bsc#962335 - VUL-0: CVE-2013-4538: xen: ssd0323: fix buffer overun on invalid state CVE-2013-4538-qemut-ssd0323-fix-buffer-overun-on-invalid-state.patch - bsc#962360 - VUL-0: CVE-2015-7512: xen: net: pcnet: buffer overflow in non-loopback mode CVE-2015-7512-qemuu-net-pcnet-buffer-overflow-in-non-loopback-mode.patch CVE-2015-7512-qemut-net-pcnet-buffer-overflow-in-non-loopback-mode.patch - bsc#961692 - VUL-0: CVE-2016-1714: xen: nvram: OOB r/w access in processing firmware configurations CVE-2016-1714-qemuu-fw_cfg-add-check-to-validate-current-entry-value.patch CVE-2016-1714-qemut-fw_cfg-add-check-to-validate-current-entry-value.patch - bsc#961358 - VUL-0: CVE-2015-8613: xen: qemu: scsi: stack based buffer overflow in megasas_ctrl_get_info OBS-URL: https://build.opensuse.org/package/show/Virtualization/xen?expand=0&rev=395
40 lines
1.3 KiB
Diff
40 lines
1.3 KiB
Diff
References: bsc#962642 CVE-2013-4537
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Subject: ssi-sd: fix buffer overrun on invalid state load
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From: Michael S. Tsirkin mst@redhat.com Mon Apr 28 16:08:14 2014 +0300
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Date: Mon May 5 22:15:03 2014 +0200:
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Git: a9c380db3b8c6af19546a68145c8d1438a09c92b
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CVE-2013-4537
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s->arglen is taken from wire and used as idx
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in ssi_sd_transfer().
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Validate it before access.
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Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Signed-off-by: Juan Quintela <quintela@redhat.com>
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Index: xen-4.6.0-testing/tools/qemu-xen-traditional-dir-remote/hw/ssi-sd.c
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===================================================================
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--- xen-4.6.0-testing.orig/tools/qemu-xen-traditional-dir-remote/hw/ssi-sd.c
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+++ xen-4.6.0-testing/tools/qemu-xen-traditional-dir-remote/hw/ssi-sd.c
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@@ -221,8 +221,17 @@ static int ssi_sd_load(QEMUFile *f, void
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for (i = 0; i < 5; i++)
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s->response[i] = qemu_get_be32(f);
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s->arglen = qemu_get_be32(f);
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+ if (s->mode == SSI_SD_CMDARG &&
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+ (s->arglen < 0 || s->arglen >= ARRAY_SIZE(s->cmdarg))) {
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+ return -EINVAL;
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+ }
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s->response_pos = qemu_get_be32(f);
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s->stopping = qemu_get_be32(f);
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+ if (s->mode == SSI_SD_RESPONSE &&
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+ (s->response_pos < 0 || s->response_pos >= ARRAY_SIZE(s->response) ||
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+ (!s->stopping && s->arglen > ARRAY_SIZE(s->response)))) {
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+ return -EINVAL;
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+ }
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return 0;
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}
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