CVSS: 6.5EPSS: 0%CPEs: 2EXPL: 0CVE-2021-3544
https://notcve.org/view.php?id=CVE-2021-3544
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.c y contrib/vhost-user-gpu/virgl.c debido a la liberación inapropiada de la memoria (es decir, libre) después del tiempo de vida efectivo • http://www.openwall.com/lists/oss-security/2021/05/31/1 https://bugzilla.redhat.com/show_bug.cgi?id=1958935 https://security.gentoo.org/glsa/202208-27 https://security.netapp.com/advisory/ntap-20210720-0008 https://www.debian.org/security/2021/dsa-4980 • CWE-401: Missing Release of Memory after Effective Lifetime •
CVSS: 6.0EPSS: 0%CPEs: 2EXPL: 0CVE-2020-35503
https://notcve.org/view.php?id=CVE-2020-35503
A NULL pointer dereference flaw was found in the megasas-gen2 SCSI host bus adapter emulation of QEMU in versions before and including 6.0. This issue occurs in the megasas_command_cancelled() callback function while dropping a SCSI request. This flaw allows a privileged guest user to crash the QEMU process on the host, resulting in a denial of service. The highest threat from this vulnerability is to system availability. Se ha encontrado un fallo de desreferencia del puntero NULL en la emulación megasas-gen2 SCSI host bus adapter de QEMU en versiones anteriores a 6.0 incluyéndola. • https://bugzilla.redhat.com/show_bug.cgi?id=1910346 https://security.netapp.com/advisory/ntap-20210720-0008 • CWE-476: NULL Pointer Dereference •
CVSS: 6.7EPSS: 0%CPEs: 1EXPL: 0CVE-2020-35506
https://notcve.org/view.php?id=CVE-2020-35506
A use-after-free vulnerability was found in the am53c974 SCSI host bus adapter emulation of QEMU in versions before 6.0.0 during the handling of the 'Information Transfer' command (CMD_TI). This flaw allows a privileged guest user to crash the QEMU process on the host, resulting in a denial of service or potential code execution with the privileges of the QEMU process. Se encontró una vulnerabilidad de uso de memoria previamente liberada en la emulación del adaptador bus de host SCSI am53c974 de QEMU en versiones anteriores a 6.0.0, durante el manejo del comando "Information Transfer" (CMD_TI). Este fallo permite a un usuario invitado privilegiado bloquear el proceso QEMU en el host, resultando en una denegación de servicio o una posible ejecución de código con los privilegios del proceso QEMU • http://www.openwall.com/lists/oss-security/2021/04/16/3 https://bugzilla.redhat.com/show_bug.cgi?id=1909996 https://security.gentoo.org/glsa/202208-27 https://security.netapp.com/advisory/ntap-20210713-0006 https://www.openwall.com/lists/oss-security/2021/04/16/3 • CWE-416: Use After Free •
CVSS: 4.4EPSS: 0%CPEs: 4EXPL: 0CVE-2020-35505
https://notcve.org/view.php?id=CVE-2020-35505
A NULL pointer dereference flaw was found in the am53c974 SCSI host bus adapter emulation of QEMU in versions before 6.0.0. This issue occurs while handling the 'Information Transfer' command. This flaw allows a privileged guest user to crash the QEMU process on the host, resulting in a denial of service. The highest threat from this vulnerability is to system availability. Se encontró un fallo de desreferencia del puntero NULL en la emulación del adaptador de bus de host SCSI am53c974 de QEMU en versiones anteriores a 6.0.0. • http://www.openwall.com/lists/oss-security/2021/04/16/3 https://bugzilla.redhat.com/show_bug.cgi?id=1909769 https://lists.debian.org/debian-lts-announce/2022/09/msg00008.html https://security.gentoo.org/glsa/202208-27 https://security.netapp.com/advisory/ntap-20210713-0006 https://www.openwall.com/lists/oss-security/2021/04/16/3 • CWE-476: NULL Pointer Dereference •
CVSS: 6.0EPSS: 0%CPEs: 3EXPL: 0CVE-2020-35504
https://notcve.org/view.php?id=CVE-2020-35504
A NULL pointer dereference flaw was found in the SCSI emulation support of QEMU in versions before 6.0.0. This flaw allows a privileged guest user to crash the QEMU process on the host, resulting in a denial of service. The highest threat from this vulnerability is to system availability. Se encontró un fallo de desreferencia del puntero NULL en el soporte de emulación SCSI de QEMU en versiones anteriores a 6.0.0. Este fallo permite a un usuario invitado privilegiado bloquear el proceso QEMU en el host, resultando en una denegación de servicio. • http://www.openwall.com/lists/oss-security/2021/04/16/3 https://bugzilla.redhat.com/show_bug.cgi?id=1909766 https://lists.debian.org/debian-lts-announce/2022/09/msg00008.html https://security.gentoo.org/glsa/202208-27 https://security.netapp.com/advisory/ntap-20210713-0006 https://www.openwall.com/lists/oss-security/2021/04/16/3 • CWE-476: NULL Pointer Dereference •