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
Link | Resource |
---|---|
https://bugzilla.redhat.com/show_bug.cgi?id=1900698 | Issue Tracking Third Party Advisory |
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZWZ36QK4IKU6MWDWNOOWKPH3WXZBHT2R/ | |
https://security.gentoo.org/glsa/202104-05 | Third Party Advisory |
https://security.netapp.com/advisory/ntap-20220325-0001/ | Third Party Advisory |
History
No history.
MITRE Information
Status: PUBLISHED
Assigner: redhat
Published: 2021-03-03T16:40:24
Updated: 2022-03-25T07:06:28
Reserved: 2020-10-27T00:00:00
Link: CVE-2020-27779
JSON object: View
NVD Information
Status : Modified
Published: 2021-03-03T17:15:11.847
Modified: 2023-11-07T03:21:00.220
Link: CVE-2020-27779
JSON object: View
Redhat Information
No data.
CWE