CVE-2017-7471
Qemu: 9p: virtfs allows guest to change filesystem attributes on host
Severidad por fuente
La etiqueta propia de Trivy es CRITICAL. Crítica según NVD. Más baja según Red Hat (alta), Oracle (alta).
Descripción
Quick Emulator (Qemu) built with the VirtFS, host directory sharing via Plan 9 File System (9pfs) support, is vulnerable to an improper access control issue. It could occur while accessing files on a shared host directory. A privileged user inside guest could use this flaw to access host file system beyond the shared folder and potentially escalating their privileges on a host.
Paquetes afectados y versiones corregidas
| Fuente | Paquete | Corregido en |
|---|---|---|
| debian 11 | qemu | 1:2.8+dfsg-5 |
| debian 12 | qemu | 1:2.8+dfsg-5 |
| debian 13 | qemu | 1:2.8+dfsg-5 |
| debian 14 | qemu | 1:2.8+dfsg-5 |
| debian 7 | qemu | 1.1.2+dfsg-6+deb7u22 |
| echo | qemu | 1:2.8+dfsg-5 |
| Oracle Linux 7 | ivshmem-tools, qemu, qemu-block-gluster y 10 más | 15:3.1.0-1.el7 y 1 más |
Mostrar las 19 entradas de 7 fuentes
| Fuente | Paquete | Corregido en |
|---|---|---|
| debian 11 | qemu | 1:2.8+dfsg-5 |
| debian 12 | qemu | 1:2.8+dfsg-5 |
| debian 13 | qemu | 1:2.8+dfsg-5 |
| debian 14 | qemu | 1:2.8+dfsg-5 |
| debian 7 | qemu | 1.1.2+dfsg-6+deb7u22 |
| echo | qemu | 1:2.8+dfsg-5 |
| Oracle Linux 7 | ivshmem-tools | 15:3.1.0-1.el7 |
| Oracle Linux 7 | qemu | 15:3.0.0-1.el7 |
| Oracle Linux 7 | qemu-block-gluster | 15:3.0.0-1.el7 |
| Oracle Linux 7 | qemu-block-iscsi | 15:3.0.0-1.el7 |
| Oracle Linux 7 | qemu-block-rbd | 15:3.0.0-1.el7 |
| Oracle Linux 7 | qemu-common | 15:3.0.0-1.el7 |
| Oracle Linux 7 | qemu-img | 15:3.0.0-1.el7 |
| Oracle Linux 7 | qemu-kvm | 15:3.0.0-1.el7 |
| Oracle Linux 7 | qemu-kvm-core | 15:3.0.0-1.el7 |
| Oracle Linux 7 | qemu-system-aarch64 | 15:3.1.0-1.el7 |
| Oracle Linux 7 | qemu-system-aarch64-core | 15:3.1.0-1.el7 |
| Oracle Linux 7 | qemu-system-x86 | 15:3.0.0-1.el7 |
| Oracle Linux 7 | qemu-system-x86-core | 15:3.0.0-1.el7 |
Referencias
- http://www.openwall.com/lists/oss-security/2017/04/19/2
- http://www.securityfocus.com/bid/97970
- https://access.redhat.com/security/cve/CVE-2017-7471
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-7471
- https://git.qemu.org/?p=qemu.git%3Ba=commitdiff%3Bh=9c6b899f7a46893ab3b671e341a2234e9c0c060e
- https://linux.oracle.com/cve/CVE-2017-7471.html
- https://linux.oracle.com/errata/ELSA-2019-4585.html
- https://nvd.nist.gov/vuln/detail/CVE-2017-7471