CVE-2022-3775
HIGH
7,1
Source: [email protected]
Attack Vector: local
Attack Complexity: low
Privileges Required: low
User Interaction: none
Scope: unchanged
Confidentiality: none
Integrity: high
Availability: high
Description
AI Translation Available
When rendering certain unicode sequences, grub2's font code doesn't proper validate if the informed glyph's width and height is constrained within bitmap size. As consequence an attacker can craft an input which will lead to a out-of-bounds write into grub2's heap, leading to memory corruption and availability issues. Although complex, arbitrary code execution could not be discarded.
EPSS (Exploit Prediction Scoring System)
Trend Analysis
EPSS (Exploit Prediction Scoring System)
Prevede la probabilità di sfruttamento basata su intelligence sulle minacce e sulle caratteristiche della vulnerabilità.
EPSS Score
0,0008
Percentile
0,2th
Updated
EPSS Score Trend (Last 90 Days)
787
Out-of-bounds Write
DraftCommon Consequences
Security Scopes Affected:
Integrity
Availability
Other
Potential Impacts:
Modify Memory
Execute Unauthorized Code Or Commands
Dos: Crash, Exit, Or Restart
Unexpected State
Applicable Platforms
Languages:
Assembly, C, C++, Memory-Unsafe
Technologies:
ICS/OT
Application
Grub2 by Gnu
Version Range Affected
To
2.06
(inclusive)
CPE Identifier
View Detailed Analysis
cpe:2.3:a:gnu:grub2:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System
Enterprise Linux by Redhat
CPE Identifier
View Detailed Analysis
cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
https://access.redhat.com/security/cve/cve-2022-3775
https://security.gentoo.org/glsa/202311-14
https://access.redhat.com/security/cve/cve-2022-3775
https://security.gentoo.org/glsa/202311-14