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 |
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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 |
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 |
Configurations
Configuration 1 (hide)
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Configuration 2 (hide)
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Configuration 3 (hide)
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Configuration 4 (hide)
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History
21 Nov 2024, 05:21
Type | Values Removed | Values Added |
---|---|---|
References | () https://bugzilla.redhat.com/show_bug.cgi?id=1900698 - Issue Tracking, Third Party Advisory | |
References | () https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZWZ36QK4IKU6MWDWNOOWKPH3WXZBHT2R/ - | |
References | () https://security.gentoo.org/glsa/202104-05 - Third Party Advisory | |
References | () https://security.netapp.com/advisory/ntap-20220325-0001/ - Third Party Advisory |
07 Nov 2023, 03:21
Type | Values Removed | Values Added |
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References |
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Information
Published : 2021-03-03 17:15
Updated : 2024-11-21 05:21
NVD link : CVE-2020-27779
Mitre link : CVE-2020-27779
CVE.ORG link : CVE-2020-27779
JSON object : View
Products Affected
redhat
- enterprise_linux_server_aus
- enterprise_linux_server_tus
- enterprise_linux
- enterprise_linux_workstation
- enterprise_linux_server_eus
netapp
- ontap_select_deploy_administration_utility
gnu
- grub2
fedoraproject
- fedora
CWE