CVE-2020-27674

Katalog CVE

CVSS 5.3 · Medium EPSS 0,36%

Kerentanan Out-of-bounds Write pada xen, fedoraproject fedora +1 lainnya. Skor CVSS 3.1 5.3 (Medium) menurut NVD.

Deskripsi (NVD)

An issue was discovered in Xen through 4.14.x allowing x86 PV guest OS users to gain guest OS privileges by modifying kernel memory contents, because invalidation of TLB entries is mishandled during use of an INVLPG-like attack technique.

Rincian

Terbit di NVD

22 Oktober 2020

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

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

Jenis kelemahan (CWE)

CWE-787: Out-of-bounds Write

EPSS (30 hari)

0,36% peluang dieksploitasi; lebih tinggi dari 27,6% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://xenbits.xen.org/xsa/advisory-286.html patch · advisory vendor
• http://www.openwall.com/lists/oss-security/2021/01/19/5 mailing list · advisory pihak ketiga
• https://security.gentoo.org/glsa/202011-06 advisory pihak ketiga
• https://www.debian.org/security/2020/dsa-4804 advisory pihak ketiga
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PZAM3LYJ5TZLS...
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/U3U4LNKKXU4UP...
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XIK57QJOVOPWH...