CVE-2023-40550
Shim: out-of-bound read in verify_buffer_sbat()
Severity Score
5.5
*CVSS v3.1
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
0
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
-
*SSVC
Descriptions
An out-of-bounds read flaw was found in Shim when it tried to validate the SBAT information. This issue may expose sensitive data during the system's boot phase.
Se encontró un fallo de lectura fuera de los límites en Shim cuando intentó validar la información SBAT. Este problema puede exponer datos confidenciales durante la fase de inicio del sistema.
*Credits:
N/A
CVSS Scores
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:-
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2023-08-15 CVE Reserved
- 2024-01-29 CVE Published
- 2024-04-26 EPSS Updated
- 2024-09-16 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-125: Out-of-bounds Read
CAPEC
References (12)
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| https://access.redhat.com/errata/RHSA-2024:1834 | 2024-06-10 | |
| https://access.redhat.com/errata/RHSA-2024:1835 | 2024-06-10 | |
| https://access.redhat.com/errata/RHSA-2024:1873 | 2024-06-10 | |
| https://access.redhat.com/errata/RHSA-2024:1876 | 2024-06-10 | |
| https://access.redhat.com/errata/RHSA-2024:1883 | 2024-06-10 | |
| https://access.redhat.com/errata/RHSA-2024:1902 | 2024-06-10 | |
| https://access.redhat.com/errata/RHSA-2024:1903 | 2024-06-10 | |
| https://access.redhat.com/errata/RHSA-2024:1959 | 2024-06-10 | |
| https://access.redhat.com/errata/RHSA-2024:2086 | 2024-06-10 | |
| https://access.redhat.com/security/cve/CVE-2023-40550 | 2024-04-29 | |
| https://bugzilla.redhat.com/show_bug.cgi?id=2259915 | 2024-04-29 |
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Redhat Search vendor "Redhat" | Shim Search vendor "Redhat" for product "Shim" | < 15.8 Search vendor "Redhat" for product "Shim" and version " < 15.8" | - |
Affected
| ||||||
| Fedoraproject Search vendor "Fedoraproject" | Fedora Search vendor "Fedoraproject" for product "Fedora" | 39 Search vendor "Fedoraproject" for product "Fedora" and version "39" | - |
Affected
| ||||||
| Redhat Search vendor "Redhat" | Enterprise Linux Search vendor "Redhat" for product "Enterprise Linux" | 8.0 Search vendor "Redhat" for product "Enterprise Linux" and version "8.0" | - |
Affected
| ||||||
| Redhat Search vendor "Redhat" | Enterprise Linux Search vendor "Redhat" for product "Enterprise Linux" | 9.0 Search vendor "Redhat" for product "Enterprise Linux" and version "9.0" | - |
Affected
| ||||||