CVE-2020-17376

Katalog CVE

CVSS 8.3 · High EPSS 1,7%

Kerentanan Improper Restriction of XML External Entity Reference pada openstack nova. Skor CVSS 3.1 8.3 (High) menurut NVD.

Deskripsi (NVD)

An issue was discovered in Guest.migrate in virt/libvirt/guest.py in OpenStack Nova before 19.3.1, 20.x before 20.3.1, and 21.0.0. By performing a soft reboot of an instance that has previously undergone live migration, a user may gain access to destination host devices that share the same paths as host devices previously referenced by the virtual machine on the source host. This can include block devices that map to different Cinder volumes at the destination than at the source. Only deployments allowing host-based connections (for instance, root and ephemeral devices) are affected.

Rincian

Terbit di NVD

26 Agustus 2020

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

8.3 (High), sumber NVD
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-611: Improper Restriction of XML External Entity Reference

EPSS (30 hari)

1,7% peluang dieksploitasi; lebih tinggi dari 77,0% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://security.openstack.org/ossa/OSSA-2020-006.html patch · advisory vendor
• http://www.openwall.com/lists/oss-security/2020/08/25/4 mailing list · patch · advisory pihak ketiga
• https://launchpad.net/bugs/1890501 exploit · advisory pihak ketiga