Incorrect Permission Assignment for Critical Resource Affecting qemu package, versions <1:2.8+dfsg-6
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Test your applications- Snyk ID SNYK-DEBIAN10-QEMU-427926
- published 17 May 2017
- disclosed 17 May 2017
Introduced: 17 May 2017
CVE-2017-7493 Open this link in a new tabHow to fix?
Upgrade Debian:10
qemu
to version 1:2.8+dfsg-6 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream qemu
package and not the qemu
package as distributed by Debian
.
See How to fix?
for Debian:10
relevant fixed versions and status.
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 virtfs metadata files in mapped-file security mode. A guest user could use this flaw to escalate their privileges inside guest.
References
- https://security-tracker.debian.org/tracker/CVE-2017-7493
- https://lists.debian.org/debian-lts-announce/2018/09/msg00007.html
- https://security.gentoo.org/glsa/201706-03
- https://lists.gnu.org/archive/html/qemu-devel/2017-05/msg03663.html
- http://seclists.org/oss-sec/2017/q2/278
- https://bugzilla.redhat.com/show_bug.cgi?id=1451709
- http://www.securityfocus.com/bid/98574
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2017-7493