CVE-2022-1665
These kernel builds don't have the secure boot lockdown patches applied to it and can bypass the secure boot validations, allowing the attacker to load another non-trusted code.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.27%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
A set of pre-production kernel packages of Red Hat Enterprise Linux for IBM Power architecture can be booted by the grub in Secure Boot mode even though it shouldn't. These kernel builds don't have the secure boot lockdown patches applied to it and can bypass the secure boot validations, allowing the attacker to load another non-trusted code.
- CVSS 3.1
- 8.2 HIGHCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
- EPSS
- 0.27% probability · 18th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-1291
- Affected
- redhat/enterprise linux
- Source
- secalert@redhat.com
References
- https://bugzilla.redhat.com/show_bug.cgi?id=2089529Issue Tracking, Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2089529Issue Tracking, Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.