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Vulnerabilities
Vulnerable Software

Vulnerability Details CVE-2022-3775

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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.001
EPSS Ranking 21.0%
CVSS Severity
CVSS v3 Score 7.1
Products affected by CVE-2022-3775
  • Gnu » Grub2 » Version: N/A
    cpe:2.3:a:gnu:grub2:-
  • Gnu » Grub2 » Version: 1.98
    cpe:2.3:a:gnu:grub2:1.98
  • Gnu » Grub2 » Version: 1.99
    cpe:2.3:a:gnu:grub2:1.99
  • Gnu » Grub2 » Version: 2.00
    cpe:2.3:a:gnu:grub2:2.00
  • Gnu » Grub2 » Version: 2.01
    cpe:2.3:a:gnu:grub2:2.01
  • Gnu » Grub2 » Version: 2.02
    cpe:2.3:a:gnu:grub2:2.02
  • Gnu » Grub2 » Version: 2.04
    cpe:2.3:a:gnu:grub2:2.04
  • Gnu » Grub2 » Version: 2.06
    cpe:2.3:a:gnu:grub2:2.06
  • Redhat » Enterprise Linux » Version: 8.0
    cpe:2.3:o:redhat:enterprise_linux:8.0


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