Debian Security Bug TrackerDEBIANCVE:CVE-2023-34326CVE-2023-34326
7.8 High
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
8.5 High
AI Score
Confidence
High
0.0004 Low
EPSS
Percentile
8.9%
The caching invalidation guidelines from the AMD-Vi specification (48882—Rev 3.07-PUB—Oct 2022) is incorrect on some hardware, as devices will malfunction (see stale DMA mappings) if some fields of the DTE are updated but the IOMMU TLB is not flushed. Such stale DMA mappings can point to memory ranges not owned by the guest, thus allowing access to unindented memory regions.
| OS | Version | Architecture | Package | Version | Filename |
|---|---|---|---|---|---|
| Debian | 12 | all | xen | < 4.17.2+76-ge1f9cb16e2-1~deb12u1 | xen_4.17.2+76-ge1f9cb16e2-1~deb12u1_all.deb |
| Debian | 11 | all | xen | <= 4.14.6-1 | xen_4.14.6-1_all.deb |
| Debian | 10 | all | xen | <= 4.11.4+107-gef32c7afa2-1 | xen_4.11.4+107-gef32c7afa2-1_all.deb |
| Debian | 999 | all | xen | < 4.17.2+55-g0b56bed864-1 | xen_4.17.2+55-g0b56bed864-1_all.deb |
| Debian | 13 | all | xen | < 4.17.2+55-g0b56bed864-1 | xen_4.17.2+55-g0b56bed864-1_all.deb |
Related
7.8 High
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
8.5 High
AI Score
Confidence
High
0.0004 Low
EPSS
Percentile
8.9%