medium6.7
CVE-2021-20225
A flaw was found in grub2 in versions prior to 2.06.
Impact
A flaw was found in grub2 in versions prior to 2.06. The option parser allows an attacker to write past the end of a heap-allocated buffer by calling certain commands with a large number of specific short forms of options. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Gnu | Grub2 | before 2.06 |
| Redhat | Enterprise Linux | Versions 7.0, 8.0 |
| Redhat | Enterprise Linux Server Aus | Versions 7.2, 7.3, 7.4, 7.6, 7.7, 8.2 |
| Redhat | Enterprise Linux Server Eus | Versions 7.6, 7.7, 8.1 |
| Redhat | Enterprise Linux Server Tus | Versions 7.4, 7.6, 7.7, 8.2 |
| Redhat | Enterprise Linux Workstation | Version 7.0 |
| Fedoraproject | Fedora | Versions 33, 34 |
| Netapp | Ontap Select Deploy Administration Utility | All versions |
Weakness classification
References
- NVD record
- CVE.org record
- https://bugzilla.redhat.com/show_bug.cgi?id=1924696
- 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/
- https://bugzilla.redhat.com/show_bug.cgi?id=1924696
- 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/