MEDIUM 6.7 Microsoft
CVE-2021-20225
A flaw was found in grub2 in versions prior to 2.06. The option parser allows an attacker to write past the end of a heap-allocated buffer by calling certain commands with a large number of specific short forms of options. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
Microsoft Security Update 2021-Mar: A flaw was found in grub2 in versions prior to 2.06. The option parser allows an attacker to write past the end of a heap-allocated buffer by calling certain commands with a large number of specific short forms of options. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
Affected Products
- cbl2 grub2 2.06~rc1-7 on CBL Mariner 2.0
- azl3 grub2 2.06-26 on Azure Linux 3.0
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-20225
- https://nvd.nist.gov/vuln/detail/CVE-2021-20225
This medium severity vulnerability with a CVSS score of 6.7 was published on 2021-03-09 via Microsoft. Affected: cbl2 grub2 2.06~rc1-7 on CBL Mariner 2.0, azl3 grub2 2.06-26 on Azure Linux 3.0.
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