CVE-2020-27779

HIGH7.5

A flaw was found in grub2 in versions prior to 2

Published Mar 3, 2021

Modified 1 years ago

Details

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.

References

WEB

https://bugzilla.redhat.com/show_bug.cgi?id=1900698

ADVISORY

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZWZ36QK4IKU6MWDWNOOWKPH3WXZBHT2R/

ADVISORY

https://security.gentoo.org/glsa/202104-05

WEB

https://security.netapp.com/advisory/ntap-20220325-0001/

ADVISORY

https://www.cve.org/CVERecord?id=CVE-2020-27779

CVSS Analysis