ID |
CVE-2020-29481
|
Sažetak |
An issue was discovered in Xen through 4.14.x. Access rights of Xenstore nodes are per domid. Unfortunately, existing granted access rights are not removed when a domain is being destroyed. This means that a new domain created with the same domid will inherit the access rights to Xenstore nodes from the previous domain(s) with the same domid. Because all Xenstore entries of a guest below /local/domain/<domid> are being deleted by Xen tools when a guest is destroyed, only Xenstore entries of other guests still running are affected. For example, a newly created guest domain might be able to read sensitive information that had belonged to a previously existing guest domain. Both Xenstore implementations (C and Ocaml) are vulnerable. |
Reference |
|
CVSS |
Base: | 4.6 |
Impact: | 6.4 |
Exploitability: | 3.9 |
|
Pristup |
Vektor | Složenost | Autentikacija |
LOCAL |
LOW |
NONE |
|
Impact |
Povjerljivost | Cjelovitost | Dostupnost |
PARTIAL |
PARTIAL |
PARTIAL |
|
CVSS vektor |
AV:L/AC:L/Au:N/C:P/I:P/A:P |
Zadnje važnije ažuriranje |
07-11-2023 - 03:21 |
Objavljeno |
15-12-2020 - 18:15 |