grub2 up to 2.05 USB Device Initialization memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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5.8$0-$5k0.00

Summaryinfo

A vulnerability described as critical has been identified in grub2 up to 2.05. The affected element is an unknown function of the component USB Device Initialization. The manipulation results in memory corruption. This vulnerability is identified as CVE-2020-25647. An attack on the physical device is feasible. There is not any exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability, which was classified as critical, was found in grub2 up to 2.05. Affected is an unknown code block of the component USB Device Initialization. The manipulation with an unknown input leads to a memory corruption vulnerability. CWE is classifying the issue as CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. This is going to have an impact on confidentiality, integrity, and availability.

The weakness was released 03/04/2021. The advisory is shared for download at bugzilla.redhat.com. This vulnerability is traded as CVE-2020-25647. There are neither technical details nor an exploit publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 208609 (CentOS 7 : grub2 (RHSA-2021:0699)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 2.06 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (208609). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.9
VulDB Meta Temp Score: 5.8

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.6
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Yes
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 208609
Nessus Name: CentOS 7 : grub2 (RHSA-2021:0699)

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: grub2 2.06

Timelineinfo

09/16/2020 🔍
03/04/2021 +169 days 🔍
03/04/2021 +0 days 🔍
10/13/2024 +1319 days 🔍

Sourcesinfo

Advisory: bugzilla.redhat.com
Status: Confirmed

CVE: CVE-2020-25647 (🔍)
GCVE (CVE): GCVE-0-2020-25647
GCVE (VulDB): GCVE-100-170616

Entryinfo

Created: 03/04/2021 07:34
Updated: 10/13/2024 13:29
Changes: 03/04/2021 07:34 (37), 03/06/2021 14:27 (5), 03/14/2021 13:48 (18), 10/13/2024 13:29 (17)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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