Vulnerability Details : CVE-2022-28735
The GRUB2's shim_lock verifier allows non-kernel files to be loaded on shim-powered secure boot systems. Allowing such files to be loaded may lead to unverified code and modules to be loaded in GRUB2 breaking the secure boot trust-chain.
Products affected by CVE-2022-28735
- cpe:2.3:a:gnu:grub2:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2022-28735
0.04%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 7 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2022-28735
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
7.8
|
HIGH | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
1.8
|
5.9
|
NIST | |
|
6.7
|
MEDIUM | CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H |
0.8
|
5.9
|
Canonical Ltd. |
References for CVE-2022-28735
-
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-28735
CVE - CVE-2022-28735Third Party Advisory
-
https://www.openwall.com/lists/oss-security/2022/06/07/5
oss-security - [SECURITY PATCH 00/30] Multiple GRUB2 vulnerabilities - 2022/06/07 roundMailing List;Third Party Advisory
-
https://security.netapp.com/advisory/ntap-20230825-0002/
July 2023 Grub Vulnerabilities in NetApp Products | NetApp Product Security
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