Vulnerabilities > CVE-2021-20263 - Improper Preservation of Permissions vulnerability in Qemu
Attack vector
LOCAL Attack complexity
LOW Privileges required
LOW Confidentiality impact
NONE Integrity impact
LOW Availability impact
NONE Summary
A flaw was found in the virtio-fs shared file system daemon (virtiofsd) of QEMU. The new 'xattrmap' option may cause the 'security.capability' xattr in the guest to not drop on file write, potentially leading to a modified, privileged executable in the guest. In rare circumstances, this flaw could be used by a malicious user to elevate their privileges within the guest.
Vulnerable Configurations
| Part | Description | Count |
|---|---|---|
| Application | 20 |