CVSS: 3.2EPSS: 0%CPEs: 2EXPL: 0CVE-2020-25723 – QEMU: assertion failure through usb_packet_unmap() in hw/usb/hcd-ehci.c
https://notcve.org/view.php?id=CVE-2020-25723
A reachable assertion issue was found in the USB EHCI emulation code of QEMU. It could occur while processing USB requests due to missing handling of DMA memory map failure. A malicious privileged user within the guest may abuse this flaw to send bogus USB requests and crash the QEMU process on the host, resulting in a denial of service. Se encontró un problema de aserción alcanzable en el código de emulación USB EHCI de QEMU. Podría ocurrir mientras se procesan las peticiones USB debido a una falta de manejo del fallo del mapa de memoria DMA. • http://www.openwall.com/lists/oss-security/2020/12/22/1 https://bugzilla.redhat.com/show_bug.cgi?id=1898579 https://lists.debian.org/debian-lts-announce/2022/09/msg00008.html https://security.netapp.com/advisory/ntap-20201218-0004 https://access.redhat.com/security/cve/CVE-2020-25723 • CWE-617: Reachable Assertion •
CVSS: 6.3EPSS: 0%CPEs: 2EXPL: 0CVE-2020-17380
https://notcve.org/view.php?id=CVE-2020-17380
A heap-based buffer overflow was found in QEMU through 5.0.0 in the SDHCI device emulation support. It could occur while doing a multi block SDMA transfer via the sdhci_sdma_transfer_multi_blocks() routine in hw/sd/sdhci.c. A guest user or process could use this flaw to crash the QEMU process on the host, resulting in a denial of service condition, or potentially execute arbitrary code with privileges of the QEMU process on the host. Se encontró un desbordamiento del búfer en la región heap de la memoria en QEMU versiones hasta 5.0.0, en el soporte de emulación de dispositivo SDHCI. Podría ocurrir mientras se realiza una transferencia SDMA de bloques múltiples por medio de la rutina sdhci_sdma_transfer_multi_blocks() en el archivo hw/sd/sdhci.c. • http://www.openwall.com/lists/oss-security/2021/03/09/1 https://bugzilla.redhat.com/show_bug.cgi?id=1862167 https://lists.debian.org/debian-lts-announce/2021/04/msg00009.html https://lists.nongnu.org/archive/html/qemu-devel/2020-09/msg01175.html https://security.netapp.com/advisory/ntap-20210312-0003 • CWE-787: Out-of-bounds Write •
CVSS: 6.5EPSS: 0%CPEs: 3EXPL: 0CVE-2020-27617 – QEMU: net: an assert failure via eth_get_gso_type
https://notcve.org/view.php?id=CVE-2020-27617
eth_get_gso_type in net/eth.c in QEMU 4.2.1 allows guest OS users to trigger an assertion failure. A guest can crash the QEMU process via packet data that lacks a valid Layer 3 protocol. La función eth_get_gso_type en el archivo net/eth.c en QEMU versión 4.2.1, permite a usuarios de OS invitados desencadenar un error de aserción. Un invitado puede bloquear el proceso de QEMU por medio de paquetes de datos que carecen de un protocolo de Capa 3 válido An assert(3) failure flaw was found in the networking helper functions of QEMU. This vulnerability can occur in the eth_get_gso_type() routine if a packet does not have a valid networking L3 protocol (ex. • http://www.openwall.com/lists/oss-security/2020/11/02/1 https://lists.debian.org/debian-lts-announce/2020/11/msg00047.html https://lists.debian.org/debian-lts-announce/2022/09/msg00008.html https://lists.nongnu.org/archive/html/qemu-devel/2020-10/msg05731.html https://security.netapp.com/advisory/ntap-20201202-0002 https://access.redhat.com/security/cve/CVE-2020-27617 https://bugzilla.redhat.com/show_bug.cgi?id=1891668 • CWE-617: Reachable Assertion •
CVSS: 6.5EPSS: 0%CPEs: 1EXPL: 0CVE-2020-27616
https://notcve.org/view.php?id=CVE-2020-27616
ati_2d_blt in hw/display/ati_2d.c in QEMU 4.2.1 can encounter an outside-limits situation in a calculation. A guest can crash the QEMU process. La función ati_2d_blt en el archivo hw/display/ati_2d.c en QEMU versión 4.2.1, puede encontrar una situación fuera de límites en un cálculo. Un invitado puede bloquear el proceso QEMU • http://www.openwall.com/lists/oss-security/2020/11/03/2 https://lists.nongnu.org/archive/html/qemu-devel/2020-10/msg05018.html https://security.netapp.com/advisory/ntap-20201202-0002 • CWE-682: Incorrect Calculation •
CVSS: 5.5EPSS: 0%CPEs: 3EXPL: 0CVE-2020-24352
https://notcve.org/view.php?id=CVE-2020-24352
An issue was discovered in QEMU through 5.1.0. An out-of-bounds memory access was found in the ATI VGA device implementation. This flaw occurs in the ati_2d_blt() routine in hw/display/ati_2d.c while handling MMIO write operations through the ati_mm_write() callback. A malicious guest could use this flaw to crash the QEMU process on the host, resulting in a denial of service. Se detectó un problema en QEMU versiones hasta 5.1.0. • https://bugzilla.redhat.com/show_bug.cgi?id=1847584 https://git.qemu.org/?p=qemu.git https://security.netapp.com/advisory/ntap-20201123-0003 • CWE-125: Out-of-bounds Read CWE-787: Out-of-bounds Write •