Vulnerability Description
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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Qemu | Qemu | <= 2.9.1 |
| Debian | Debian Linux | 8.0 |
Related Weaknesses (CWE)
References
- http://seclists.org/oss-sec/2017/q2/278Mailing ListPatchThird Party Advisory
- http://www.securityfocus.com/bid/98574Third Party AdvisoryVDB Entry
- https://bugzilla.redhat.com/show_bug.cgi?id=1451709Issue TrackingPatchThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2018/09/msg00007.htmlMailing ListThird Party Advisory
- https://lists.gnu.org/archive/html/qemu-devel/2017-05/msg03663.htmlMailing ListPatchThird Party Advisory
- https://security.gentoo.org/glsa/201706-03Third Party Advisory
- http://seclists.org/oss-sec/2017/q2/278Mailing ListPatchThird Party Advisory
- http://www.securityfocus.com/bid/98574Third Party AdvisoryVDB Entry
- https://bugzilla.redhat.com/show_bug.cgi?id=1451709Issue TrackingPatchThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2018/09/msg00007.htmlMailing ListThird Party Advisory
- https://lists.gnu.org/archive/html/qemu-devel/2017-05/msg03663.htmlMailing ListPatchThird Party Advisory
- https://security.gentoo.org/glsa/201706-03Third Party Advisory
FAQ
What is CVE-2017-7493?
CVE-2017-7493 is a vulnerability with a CVSS score of 7.8 (HIGH). 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 metad...
How severe is CVE-2017-7493?
CVE-2017-7493 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2017-7493?
Check the references section above for vendor advisories and patch information. Affected products include: Qemu Qemu, Debian Debian Linux.