CVE-2021-20233
Vulnerability from cvelistv5
Published
2021-03-03 16:44
Modified
2024-08-03 17:37
Severity ?
Summary
A flaw was found in grub2 in versions prior to 2.06. Setparam_prefix() in the menu rendering code performs a length calculation on the assumption that expressing a quoted single quote will require 3 characters, while it actually requires 4 characters which allows an attacker to corrupt memory by one byte for each quote in the input. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
References
secalert@redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=1926263Issue Tracking, Patch, Third Party Advisory
secalert@redhat.comhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZWZ36QK4IKU6MWDWNOOWKPH3WXZBHT2R/
secalert@redhat.comhttps://security.gentoo.org/glsa/202104-05Third Party Advisory
secalert@redhat.comhttps://security.netapp.com/advisory/ntap-20220325-0001/Third Party Advisory
Impacted products
n/agrub2
Show details on NVD website

To clipboard 

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