CVE-2017-7471
Qemu: 9p: virtfs allows guest to change filesystem attributes on host
Einstufung nach Quelle
Trivys eigenes Label ist CRITICAL. Kritisch laut NVD. Niedriger laut Red Hat (hoch), Oracle (hoch).
Beschreibung
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.
Betroffene Pakete und behobene Versionen
| Quelle | Paket | Behoben in |
|---|---|---|
| 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 und 10 weitere | 15:3.1.0-1.el7 und 1 weitere |
Alle 19 Einträge aus 7 Quellen zeigen
| Quelle | Paket | Behoben in |
|---|---|---|
| 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 |
Referenzen
- 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