VDB-171314 · CVE-2021-3418 · GCVE-0-2021-3418

grub2 up to 2.05 integrity check

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
6.0	$0-$5k	0.00

Summaryinfo

A vulnerability labeled as critical has been found in grub2 up to 2.05. Affected by this vulnerability is an unknown functionality. Such manipulation leads to integrity check. This vulnerability is traded as CVE-2021-3418. There is no exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in grub2 up to 2.05. It has been rated as critical. Affected by this issue is an unknown part. The manipulation with an unknown input leads to a integrity check vulnerability. Using CWE to declare the problem leads to CWE-354. The product does not validate or incorrectly validates the integrity check values or "checksums" of a message. This may prevent it from detecting if the data has been modified or corrupted in transmission. Impacted is confidentiality, integrity, and availability.

The weakness was shared 03/16/2021. The advisory is available at bugzilla.redhat.com. This vulnerability is handled as CVE-2021-3418. The technical details are unknown and an exploit is not available.

Upgrading to version 2.06 eliminates this vulnerability.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Name

grub2

Version

2.05

License

open-source

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 6.2

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.4
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Integrity check
CWE: CWE-354 / CWE-345
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Partially

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: grub2 2.06

Timelineinfo

03/01/2021 🔍
03/16/2021 +15 days 🔍
03/16/2021 +0 days 🔍
04/01/2021 +16 days 🔍

Sourcesinfo

Advisory: bugzilla.redhat.com
Status: Confirmed

CVE: CVE-2021-3418 (🔍)
GCVE (CVE): GCVE-0-2021-3418
GCVE (VulDB): GCVE-100-171314

Entryinfo

Created: 03/16/2021 11:12
Updated: 04/01/2021 21:31
Changes: 03/16/2021 11:12 (36), 04/01/2021 21:24 (5), 04/01/2021 21:31 (16)
Complete: 🔍
Cache ID: 216::103