CVE-2023-40546
Shim: out-of-bounds read printing error messages
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
A flaw was found in Shim when an error happened while creating a new ESL variable. If Shim fails to create the new variable, it tries to print an error message to the user; however, the number of parameters used by the logging function doesn't match the format string used by it, leading to a crash under certain circumstances.
Se encontró un fallo en Shim cuando ocurrió un error al crear una nueva variable ESL. Si Shim no puede crear la nueva variable, intenta imprimir un mensaje de error para el usuario; sin embargo, la cantidad de parámetros utilizados por la función de registro no coincide con la cadena de formato utilizada, lo que provoca un bloqueo en determinadas circunstancias.
*Credits:
N/A
CVSS Scores
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
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-476: NULL Pointer Dereference
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-2023-40546 | 2024-04-29 | |
| https://bugzilla.redhat.com/show_bug.cgi?id=2241796 | 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
| ||||||