What is CVE-2020-10713?

CVE-2020-10713 is a high-severity vulnerability in Gnu Grub2, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 8.2/10. Published 2020-07-30.

How severe is CVE-2020-10713?

High severity. CVSS v3 base score is 8.2 out of 10.

Is CVE-2020-10713 known to be exploited?

56 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Buffer overflow in Gnu Grub2

CVE-2020-10713

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 modifie…

Vulnerability class: Buffer Overflow

EPSS: 0.011 (61.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.2 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H.

Affected products

Gnu Grub2
Vmware Photon_os
Debian Debian_linux — versions 10.0
Opensuse Leap — versions 15.1, 15.2
N/a Grub — versions All grub2 versions before 2.06

Weakness classification (CWE)

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

Public proof-of-concept exploits

References

secalert@redhat.com (vendor-advisory, Third Party Advisory, x_refsource_DEBIAN)
secalert@redhat.com (mailing-list, x_refsource_MLIST, Mailing List, Third Party Advisory)
secalert@redhat.com (Third Party Advisory, x_refsource_MISC, Issue Tracking)
secalert@redhat.com (US Government Resource, x_refsource_CERT-VN, Third Party Advisory, third-party-advisory)
secalert@redhat.com (x_refsource_CONFIRM, Third Party Advisory)
secalert@redhat.com (x_refsource_UBUNTU, vendor-advisory, Third Party Advisory)
secalert@redhat.com (x_refsource_CISCO, vendor-advisory, Third Party Advisory)
secalert@redhat.com (vendor-advisory, Mailing List, Third Party Advisory, x_refsource_SUSE)
secalert@redhat.com (vendor-advisory, Mailing List, Third Party Advisory, x_refsource_SUSE)
secalert@redhat.com (Technical Description, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2020-10713?: CVE-2020-10713 is a high-severity vulnerability in Gnu Grub2, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 8.2/10. Published 2020-07-30.
How severe is CVE-2020-10713?: High severity. CVSS v3 base score is 8.2 out of 10.
Is CVE-2020-10713 known to be exploited?: 56 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.