VulnerabilityModified
CVE-2020-35517
A host privilege escalation issue was found in the virtio-fs shared file system daemon where a privileged guest user is able to create a device special file in the shared directory and use it to r/w access host devices.
HIGH 8.2EPSS 0.52%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.52%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
A flaw was found in qemu. A host privilege escalation issue was found in the virtio-fs shared file system daemon where a privileged guest user is able to create a device special file in the shared directory and use it to r/w access host devices.
- CVSS 3.1
- 8.2 HIGHCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
- EPSS
- 0.52% probability · 43th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-269
- Affected
- qemu/qemu
- Source
- secalert@redhat.com
References
- https://bugzilla.redhat.com/show_bug.cgi?id=1915823Issue Tracking, Patch, Third Party Advisory
- https://github.com/qemu/qemu/commit/ebf101955ce8f8d72fba103b5151115a4335de2cPatch, Third Party Advisory
- https://lists.gnu.org/archive/html/qemu-devel/2021-01/msg05461.htmlExploit, Mailing List, Patch, Third Party Advisory
- https://security.gentoo.org/glsa/202208-27Third Party Advisory
- https://security.netapp.com/advisory/ntap-20210312-0002/Third Party Advisory
- https://www.openwall.com/lists/oss-security/2021/01/22/1Exploit, Mailing List, Patch, Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1915823Issue Tracking, Patch, Third Party Advisory
- https://github.com/qemu/qemu/commit/ebf101955ce8f8d72fba103b5151115a4335de2cPatch, Third Party Advisory
- https://lists.gnu.org/archive/html/qemu-devel/2021-01/msg05461.htmlExploit, Mailing List, Patch, Third Party Advisory
- https://security.gentoo.org/glsa/202208-27Third Party Advisory
- https://security.netapp.com/advisory/ntap-20210312-0002/Third Party Advisory
- https://www.openwall.com/lists/oss-security/2021/01/22/1Exploit, Mailing List, Patch, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.