
CVE-2021-3713 – Debian Security Advisory 4980-1
https://notcve.org/view.php?id=CVE-2021-3713
25 Aug 2021 — An out-of-bounds write flaw was found in the UAS (USB Attached SCSI) device emulation of QEMU in versions prior to 6.2.0-rc0. The device uses the guest supplied stream number unchecked, which can lead to out-of-bounds access to the UASDevice->data3 and UASDevice->status3 fields. A malicious guest user could use this flaw to crash QEMU or potentially achieve code execution with the privileges of the QEMU process on the host. Se ha detectado un fallo de escritura fuera de límites en la emulación del dispositi... • https://bugzilla.redhat.com/show_bug.cgi?id=1994640 • CWE-787: Out-of-bounds Write •

CVE-2021-3682 – QEMU: usbredir: free() call on invalid pointer in bufp_alloc()
https://notcve.org/view.php?id=CVE-2021-3682
05 Aug 2021 — A flaw was found in the USB redirector device emulation of QEMU in versions prior to 6.1.0-rc2. It occurs when dropping packets during a bulk transfer from a SPICE client due to the packet queue being full. A malicious SPICE client could use this flaw to make QEMU call free() with faked heap chunk metadata, resulting in a crash of QEMU or potential code execution with the privileges of the QEMU process on the host. Se ha encontrado un fallo en la emulación del dispositivo redirector USB de QEMU en versiones... • https://bugzilla.redhat.com/show_bug.cgi?id=1989651 • CWE-763: Release of Invalid Pointer or Reference •

CVE-2021-3607 – Gentoo Linux Security Advisory 202208-27
https://notcve.org/view.php?id=CVE-2021-3607
21 Jul 2021 — An integer overflow was found in the QEMU implementation of VMWare's paravirtual RDMA device in versions prior to 6.1.0. The issue occurs while handling a "PVRDMA_REG_DSRHIGH" write from the guest due to improper input validation. This flaw allows a privileged guest user to make QEMU allocate a large amount of memory, resulting in a denial of service. The highest threat from this vulnerability is to system availability. Se encontró un desbordamiento de enteros en la implementación de QEMU del dispositivo RD... • https://bugzilla.redhat.com/show_bug.cgi?id=1973349 • CWE-190: Integer Overflow or Wraparound •

CVE-2021-3611 – QEMU: intel-hda: segmentation fault due to stack overflow
https://notcve.org/view.php?id=CVE-2021-3611
21 Jul 2021 — A stack overflow vulnerability was found in the Intel HD Audio device (intel-hda) of QEMU. A malicious guest could use this flaw to crash the QEMU process on the host, resulting in a denial of service condition. The highest threat from this vulnerability is to system availability. This flaw affects QEMU versions prior to 7.0.0. Se encontró una vulnerabilidad de desbordamiento de pila en el dispositivo Intel HD Audio (intel-hda) de QEMU. • https://bugzilla.redhat.com/show_bug.cgi?id=1973784 • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer CWE-787: Out-of-bounds Write •

CVE-2021-3582 – Gentoo Linux Security Advisory 202208-27
https://notcve.org/view.php?id=CVE-2021-3582
21 Jul 2021 — A flaw was found in the QEMU implementation of VMWare's paravirtual RDMA device. The issue occurs while handling a "PVRDMA_CMD_CREATE_MR" command due to improper memory remapping (mremap). This flaw allows a malicious guest to crash the QEMU process on the host. The highest threat from this vulnerability is to system availability. Se ha encontrado un fallo en la implementación de QEMU del dispositivo RDMA paravirtual de VMWare. • https://bugzilla.redhat.com/show_bug.cgi?id=1966266 • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer •

CVE-2021-3608 – Ubuntu Security Notice USN-5010-1
https://notcve.org/view.php?id=CVE-2021-3608
15 Jul 2021 — A flaw was found in the QEMU implementation of VMWare's paravirtual RDMA device in versions prior to 6.1.0. The issue occurs while handling a "PVRDMA_REG_DSRHIGH" write from the guest and may result in a crash of QEMU or cause undefined behavior due to the access of an uninitialized pointer. The highest threat from this vulnerability is to system availability. Se ha encontrado un fallo en la implementación de QEMU del dispositivo RDMA paravirtual de VMWare en versiones anteriores a 6.1.0. El problema es pro... • https://bugzilla.redhat.com/show_bug.cgi?id=1973383 • CWE-824: Access of Uninitialized Pointer •

CVE-2020-27661
https://notcve.org/view.php?id=CVE-2020-27661
02 Jun 2021 — A divide-by-zero issue was found in dwc2_handle_packet in hw/usb/hcd-dwc2.c in the hcd-dwc2 USB host controller emulation of QEMU. A malicious guest could use this flaw to crash the QEMU process on the host, resulting in a denial of service. Se encontró un problema de división por cero en la función dwc2_handle_packet en el archivo hw/usb/hcd-dwc2.c en la emulación del controlador de host USB hcd-dwc2 de QEMU. Un huésped malicioso podría utilizar este fallo para bloquear el proceso de QEMU en el host, resul... • https://bugzilla.redhat.com/show_bug.cgi?id=1890653 • CWE-369: Divide By Zero •

CVE-2021-3546 – Debian Security Advisory 4980-1
https://notcve.org/view.php?id=CVE-2021-3546
02 Jun 2021 — An out-of-bounds write vulnerability was found in the virtio vhost-user GPU device (vhost-user-gpu) of QEMU in versions up to and including 6.0. The flaw occurs while processing the 'VIRTIO_GPU_CMD_GET_CAPSET' command from the guest. It could allow a privileged guest user to crash the QEMU process on the host, resulting in a denial of service condition, or potential code execution with the privileges of the QEMU process. Se ha encontrado una vulnerabilidad de escritura fuera de límites en el dispositivo GPU... • http://www.openwall.com/lists/oss-security/2021/05/31/1 • CWE-787: Out-of-bounds Write •

CVE-2021-3545 – Debian Security Advisory 4980-1
https://notcve.org/view.php?id=CVE-2021-3545
02 Jun 2021 — An information disclosure vulnerability was found in the virtio vhost-user GPU device (vhost-user-gpu) of QEMU in versions up to and including 6.0. The flaw exists in virgl_cmd_get_capset_info() in contrib/vhost-user-gpu/virgl.c and could occur due to the read of uninitialized memory. A malicious guest could exploit this issue to leak memory from the host. Se ha encontrado una vulnerabilidad de divulgación de información en el dispositivo GPU virtio vhost-user (vhost-user-gpu) de QEMU en las versiones hasta... • http://www.openwall.com/lists/oss-security/2021/05/31/1 • CWE-908: Use of Uninitialized Resource •

CVE-2021-3544 – Debian Security Advisory 4980-1
https://notcve.org/view.php?id=CVE-2021-3544
02 Jun 2021 — Several memory leaks were found in the virtio vhost-user GPU device (vhost-user-gpu) of QEMU in versions up to and including 6.0. They exist in contrib/vhost-user-gpu/vhost-user-gpu.c and contrib/vhost-user-gpu/virgl.c due to improper release of memory (i.e., free) after effective lifetime. Se han encontrado varias pérdidas de memoria en el dispositivo virtio vhost-user GPU (vhost-user-gpu) de QEMU en las versiones hasta la 6.0 incluyéndola. Se presentan en los archivos contrib/vhost-user-gpu/vhost-user-gpu... • http://www.openwall.com/lists/oss-security/2021/05/31/1 • CWE-401: Missing Release of Memory after Effective Lifetime •