CVE-2020-27821

Katalog CVE

CVSS 6.0 · Medium EPSS 0,36%

Kerentanan Out-of-bounds Write pada qemu, debian linux. Skor CVSS 3.1 6.0 (Medium) menurut NVD.

Deskripsi (NVD)

A flaw was found in the memory management API of QEMU during the initialization of a memory region cache. This issue could lead to an out-of-bounds write access to the MSI-X table while performing MMIO operations. A guest user may abuse this flaw to crash the QEMU process on the host, resulting in a denial of service. This flaw affects QEMU versions prior to 5.2.0.

Rincian

Terbit di NVD

8 Desember 2020

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

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

Jenis kelemahan (CWE)

CWE-787: Out-of-bounds Write

EPSS (30 hari)

0,36% peluang dieksploitasi; lebih tinggi dari 28,4% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://bugzilla.redhat.com/show_bug.cgi?id=1902651 issue tracking · patch · advisory pihak ketiga
• http://www.openwall.com/lists/oss-security/2020/12/16/6 mailing list · advisory pihak ketiga
• https://lists.debian.org/debian-lts-announce/2022/09/msg00008.html mailing list · advisory pihak ketiga
• https://security.netapp.com/advisory/ntap-20210115-0006/ advisory pihak ketiga