Debian Security Bug TrackerDEBIANCVE:CVE-2021-20263CVE-2021-20263
3.3 Low
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
LOW
Availability Impact
NONE
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
2.1 Low
CVSS2
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:L/AC:L/Au:N/C:N/I:P/A:N
0.0004 Low
EPSS
Percentile
14.1%
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.
| OS | Version | Architecture | Package | Version | Filename |
|---|---|---|---|---|---|
| Debian | 12 | all | qemu | < 1:5.2+dfsg-9 | qemu_1:5.2+dfsg-9_all.deb |
| Debian | 11 | all | qemu | < 1:5.2+dfsg-9 | qemu_1:5.2+dfsg-9_all.deb |
| Debian | 10 | all | qemu | < 1:3.1+dfsg-8+deb10u8 | qemu_1:3.1+dfsg-8+deb10u8_all.deb |
| Debian | 999 | all | qemu | < 1:5.2+dfsg-9 | qemu_1:5.2+dfsg-9_all.deb |
| Debian | 13 | all | qemu | < 1:5.2+dfsg-9 | qemu_1:5.2+dfsg-9_all.deb |
Related
3.3 Low
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
LOW
Availability Impact
NONE
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
2.1 Low
CVSS2
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:L/AC:L/Au:N/C:N/I:P/A:N
0.0004 Low
EPSS
Percentile
14.1%