CVE-2020-10713

Katalog CVE

CVSS 8.2 · High EPSS 1,7%

Kerentanan Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') pada gnu grub2, debian linux +2 lainnya. Skor CVSS 3.1 8.2 (High) menurut NVD.

Deskripsi (NVD)

A flaw was found in grub2, prior to version 2.06. An attacker may use the GRUB 2 flaw to hijack and tamper the GRUB verification process. This flaw also allows the bypass of Secure Boot protections. In order to load an untrusted or modified kernel, an attacker would first need to establish access to the system such as gaining physical access, obtain the ability to alter a pxe-boot network, or have remote access to a networked system with root access. With this access, an attacker could then craft a string to cause a buffer overflow by injecting a malicious payload that leads to arbitrary code execution within GRUB. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

Rincian

Terbit di NVD

30 Juli 2020

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

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

Jenis kelemahan (CWE)

CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

EPSS (30 hari)

1,7% peluang dieksploitasi; lebih tinggi dari 76,7% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://www.kb.cert.org/vuls/id/174059 advisory pihak ketiga · pemerintah AS
• http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00016.html mailing list · advisory pihak ketiga
• http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00017.html mailing list · advisory pihak ketiga
• http://www.openwall.com/lists/oss-security/2020/07/29/3 mailing list · advisory pihak ketiga
• https://bugzilla.redhat.com/show_bug.cgi?id=1825243 issue tracking · advisory pihak ketiga
• https://eclypsium.com/2020/07/29/theres-a-hole-in-the-boot/ deskripsi teknis · advisory pihak ketiga
• https://kb.vmware.com/s/article/80181 advisory pihak ketiga
• https://security.gentoo.org/glsa/202104-05 advisory pihak ketiga
• https://security.netapp.com/advisory/ntap-20200731-0008/ advisory pihak ketiga
• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-grub2-code-exec-xLePCAPY advisory pihak ketiga
• https://usn.ubuntu.com/4432-1/ advisory pihak ketiga
• https://www.debian.org/security/2020/dsa-4735 advisory pihak ketiga
• https://cve.openeuler.org/#/CVEInfo/CVE-2020-10713 broken link