grub2-bhyve grub2.cfg buffer overflow

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.5$0-$5k0.00

A vulnerability has been found in grub2-bhyve (the affected version unknown) and classified as critical. Affected by this vulnerability is an unknown part of the file grub2.cfg. The manipulation with an unknown input leads to a buffer overflow vulnerability. The CWE definition for the vulnerability is CWE-120. The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

grub2-bhyve, as used in FreeBSD bhyve before revision 525916 2020-02-12, mishandles font loading by a guest through a grub2.cfg file, leading to a buffer overflow.

The weakness was shared 03/14/2020. This vulnerability is known as CVE-2020-10566 since 03/14/2020. An attack has to be approached locally. The exploitation doesn't need any form of authentication. Technical details are known, but no exploit is available.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The entry VDB-151608 is related to this item.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
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CVSSv3info

VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 6.5

VulDB Base Score: 5.3
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Buffer overflow
CWE: CWE-120 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

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EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

03/14/2020 🔍
03/14/2020 +0 days 🔍
03/14/2020 +0 days 🔍
04/16/2024 +1494 days 🔍

Sourcesinfo

Advisory: svnweb.freebsd.org
Status: Not defined

CVE: CVE-2020-10566 (🔍)
See also: 🔍

Entryinfo

Created: 03/14/2020 07:48 AM
Updated: 04/16/2024 11:29 AM
Changes: 03/14/2020 07:48 AM (34), 03/14/2020 07:53 AM (17), 04/16/2024 11:29 AM (17)
Complete: 🔍
Cache ID: 44:470:40

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