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CVSS: 7.5EPSS: 0%CPEs: 6EXPL: 0

Race condition in QEMU in Xen allows local x86 HVM guest OS administrators to gain privileges by changing certain data on shared rings, aka a "double fetch" vulnerability. Condición de carrera en QEMU en Xen permite a administradores locales del SO invitado x86 HVM obtener privilegios cambiando ciertos datos en anillos compartidos, vulnerabilidad también conocida como "doble recuperación". • http://www.securityfocus.com/bid/94476 http://www.securitytracker.com/id/1037344 http://xenbits.xen.org/xsa/advisory-197.html https://security.gentoo.org/glsa/201612-56 https://support.citrix.com/article/CTX218775 • CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') •

CVSS: 6.5EPSS: 0%CPEs: 4EXPL: 0

QEMU (aka Quick Emulator) built with the Virtio GPU Device emulator support is vulnerable to a memory leakage issue. It could occur while updating the cursor data in update_cursor_data_virgl. A guest user/process could use this flaw to leak host memory bytes, resulting in DoS for a host. QEMU (vulnerabilidad también conocido como Quick Emulator) construido con el soporte de emulador Virtio GPU Device es vulnerable a un problema de fuga de memoria. Podría ocurrir mientras se actualizan los datos de cursor en update_cursor_data_virgl. • http://www.openwall.com/lists/oss-security/2016/12/05/18 http://www.openwall.com/lists/oss-security/2016/12/05/23 http://www.securityfocus.com/bid/94765 https://lists.gnu.org/archive/html/qemu-devel/2016-11/msg00029.html https://security.gentoo.org/glsa/201701-49 • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer •

CVSS: 5.5EPSS: 0%CPEs: 5EXPL: 0

QEMU (aka Quick Emulator) built with the ColdFire Fast Ethernet Controller emulator support is vulnerable to an infinite loop issue. It could occur while receiving packets in 'mcf_fec_receive'. A privileged user/process inside guest could use this issue to crash the QEMU process on the host leading to DoS. QEMU (también conocido como Quick Emulator) construido con el soporte de emulador ColdFire Fast Ethernet Controller es vulnerable a un problema de bucle infinito. Podría ocurrir mientras se reciben paquetes en 'mcf_fec_receive'. • http://www.openwall.com/lists/oss-security/2016/12/02/3 http://www.openwall.com/lists/oss-security/2016/12/02/8 http://www.securityfocus.com/bid/94638 https://bugzilla.redhat.com/show_bug.cgi?id=1400829 https://lists.debian.org/debian-lts-announce/2018/09/msg00007.html https://lists.gnu.org/archive/html/qemu-devel/2016-11/msg05324.html https://security.gentoo.org/glsa/201701-49 • CWE-835: Loop with Unreachable Exit Condition ('Infinite Loop') •

CVSS: 6.5EPSS: 0%CPEs: 3EXPL: 0

Memory leak in the v9fs_device_unrealize_common function in hw/9pfs/9p.c in QEMU (aka Quick Emulator) allows local privileged guest OS users to cause a denial of service (host memory consumption and possibly QEMU process crash) via vectors involving the order of resource cleanup. Fuga de memoria en la función v9fs_device_unrealize_common en hw/9pfs/9p.c en QEMU (también conocido como Quick Emulator) permite a usuarios privilegiados locales del SO huésped provocar una denegación de servicio (consumo de memoria del host y posiblemente caída de proceso QEMU) a través de vectores que implican el orden de limpieza del recurso. • http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=4774718e5c194026ba5ee7a28d9be49be3080e42 http://www.openwall.com/lists/oss-security/2016/12/06/11 http://www.openwall.com/lists/oss-security/2016/12/08/7 http://www.securityfocus.com/bid/94729 https://lists.gnu.org/archive/html/qemu-devel/2016-11/msg03278.html https://security.gentoo.org/glsa/201701-49 • CWE-401: Missing Release of Memory after Effective Lifetime •

CVSS: 6.5EPSS: 0%CPEs: 4EXPL: 0

Memory leak in hw/9pfs/9p-proxy.c in QEMU (aka Quick Emulator) allows local privileged guest OS users to cause a denial of service (host memory consumption and possibly QEMU process crash) by leveraging a missing cleanup operation in the proxy backend. Fuga de memoria en hw/9pfs/9p-proxy.c en QEMU (también conocido como Quick Emulator) permite a usuarios privilegiados locales del SO huésped provocar una denegación de servicio (consumo de memoria del host y posiblemente caída del proceso QEMU) aprovechando una operación de limpieza perdida en el backend del proxy. • http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=898ae90a44551d25b8e956fd87372d303c82fe68 http://www.openwall.com/lists/oss-security/2016/12/06/11 http://www.openwall.com/lists/oss-security/2016/12/08/7 http://www.securityfocus.com/bid/94729 https://lists.debian.org/debian-lts-announce/2018/09/msg00007.html https://lists.gnu.org/archive/html/qemu-devel/2016-11/msg03278.html https://security.gentoo.org/glsa/201701-49 • CWE-401: Missing Release of Memory after Effective Lifetime •