CVE-2020-27779 | BDVDB-2026-149869 Detail

grub2

Description#

A flaw was found in grub2 in versions prior to 2.06. The cutmem command does not honor secure boot locking allowing an privileged attacker to remove address ranges from memory creating an opportunity to circumvent SecureBoot protections after proper triage about grub's memory layout. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

Impact#

No impact statement in the source data.

Weaknesses#

CWE-285

References#

https://bugzilla.redhat.com/show_bug.cgi?id=1900698
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZWZ36QK4IKU6MWDWNOOWKPH3WXZBHT2R/
https://security.gentoo.org/glsa/202104-05
https://security.netapp.com/advisory/ntap-20220325-0001/

Exploit#

No public exploit known

History#

Version 12021-03-03Record published in the CVE List.
Version 22024-08-04Most recent update recorded in the CVE List.