CVSS: 3.8EPSS: 0%CPEs: 5EXPL: 0CVE-2020-12829
https://notcve.org/view.php?id=CVE-2020-12829
In QEMU through 5.0.0, an integer overflow was found in the SM501 display driver implementation. This flaw occurs in the COPY_AREA macro while handling MMIO write operations through the sm501_2d_engine_write() callback. A local attacker could abuse this flaw to crash the QEMU process in sm501_2d_operation() in hw/display/sm501.c on the host, resulting in a denial of service. En QEMU versiones hasta 5.0.0, se encontró un desbordamiento de enteros en la implementación del controlador de pantalla SM501. Este fallo ocurre en la macro COPY_AREA al manejar operaciones de escritura MMIO por medio de la devolución de llamada de sm501_2d_engine_write(). • https://bugzilla.redhat.com/show_bug.cgi?id=1808510 https://usn.ubuntu.com/4467-1 https://www.debian.org/security/2020/dsa-4760 • CWE-190: Integer Overflow or Wraparound •
CVSS: 3.3EPSS: 0%CPEs: 4EXPL: 0CVE-2020-14415
https://notcve.org/view.php?id=CVE-2020-14415
oss_write in audio/ossaudio.c in QEMU before 5.0.0 mishandles a buffer position. La función oss_write en el archivo audio/ossaudio.c en QEMU versiones anteriores a 5.0.0, maneja inapropiadamente una posición de búfer • https://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=7a4ede0047a8613b0e3b72c9d351038f013dd357 https://usn.ubuntu.com/4467-1 • CWE-369: Divide By Zero •
CVSS: 3.8EPSS: 0%CPEs: 7EXPL: 0CVE-2020-16092 – QEMU: reachable assertion failure in net_tx_pkt_add_raw_fragment() in hw/net/net_tx_pkt.c
https://notcve.org/view.php?id=CVE-2020-16092
In QEMU through 5.0.0, an assertion failure can occur in the network packet processing. This issue affects the e1000e and vmxnet3 network devices. A malicious guest user/process could use this flaw to abort the QEMU process on the host, resulting in a denial of service condition in net_tx_pkt_add_raw_fragment in hw/net/net_tx_pkt.c. En QEMU versiones hasta 5.0.0, puede ocurrir un fallo de aserción en el procesamiento de paquetes de red. Este problema afecta a los dispositivos de red e1000e y vmxnet3. • http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00024.html http://www.openwall.com/lists/oss-security/2020/08/10/1 https://lists.debian.org/debian-lts-announce/2020/09/msg00013.html https://lists.nongnu.org/archive/html/qemu-devel/2020-07/msg07563.html https://security.gentoo.org/glsa/202208-27 https://security.netapp.com/advisory/ntap-20200821-0006 https://usn.ubuntu.com/4467-1 https://www.debian.org/security/2020/dsa-4760 https://access.redhat.com/s • CWE-617: Reachable Assertion •
CVSS: 5.3EPSS: 0%CPEs: 6EXPL: 0CVE-2020-15863
https://notcve.org/view.php?id=CVE-2020-15863
hw/net/xgmac.c in the XGMAC Ethernet controller in QEMU before 07-20-2020 has a buffer overflow. This occurs during packet transmission and affects the highbank and midway emulated machines. A guest user or process could use this flaw to crash the QEMU process on the host, resulting in a denial of service or potential privileged code execution. This was fixed in commit 5519724a13664b43e225ca05351c60b4468e4555. El archivo hw/net/xgmac.c en el controlador Ethernet XGMAC en QEMU antes del 20/07/2020, presenta un desbordamiento de búfer. • http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00024.html http://www.openwall.com/lists/oss-security/2020/07/22/1 https://git.qemu.org/?p=qemu.git%3Ba=commitdiff%3Bh=5519724a13664b43e225ca05351c60b4468e4555 https://lists.nongnu.org/archive/html/qemu-devel/2020-07/msg03497.html https://lists.nongnu.org/archive/html/qemu-devel/2020-07/msg05745.html https://security.gentoo.org/glsa/202208-27 https://usn.ubuntu.com/4467-1 https://www.debian.org/security/2020/dsa-47 • CWE-787: Out-of-bounds Write •
CVSS: 3.8EPSS: 0%CPEs: 3EXPL: 1CVE-2020-15859 – QEMU: net: e1000e: use-after-free while sending packets
https://notcve.org/view.php?id=CVE-2020-15859
QEMU 4.2.0 has a use-after-free in hw/net/e1000e_core.c because a guest OS user can trigger an e1000e packet with the data's address set to the e1000e's MMIO address. QEMU versión 4.2.0, presenta un uso de la memoria previamente liberada en el archivo hw/net/e1000e_core.c porque un usuario del Sistema Operativo invitado puede activar un paquete e1000e con la dirección de datos establecida en la dirección MMIO del e1000e A use-after-free flaw was found in the INTEL 82574 NIC (e1000e) emulator of the QEMU. The issue happens while sending packets if the guest user has set the packet data address to the e1000e's MMIO address. This flaw allows a guest user or process to crash the QEMU process on the host, resulting in a denial of service. • https://bugs.launchpad.net/qemu/+bug/1886362 https://lists.debian.org/debian-lts-announce/2021/02/msg00024.html https://lists.debian.org/debian-lts-announce/2022/09/msg00008.html https://lists.gnu.org/archive/html/qemu-devel/2020-07/msg05304.html https://security.gentoo.org/glsa/202208-27 https://www.openwall.com/lists/oss-security/2020/07/21/3 https://access.redhat.com/security/cve/CVE-2020-15859 https://bugzilla.redhat.com/show_bug.cgi?id=1859168 • CWE-416: Use After Free •