CVE-2023-40549
Shim: out-of-bounds read in verify_buffer_authenticode() malformed pe file
Severity Score
5.5
*CVSS v3.1
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
0
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
Track
*SSVC
Descriptions
An out-of-bounds read flaw was found in Shim due to the lack of proper boundary verification during the load of a PE binary. This flaw allows an attacker to load a crafted PE binary, triggering the issue and crashing Shim, resulting in a denial of service.
Se encontró un fallo de lectura fuera de los límites en Shim debido a la falta de una verificación de límites adecuada durante la carga de un binario PE. Esta falla permite a un atacante cargar un binario PE manipulado, lo que desencadena el problema y bloquea Shim, lo que resulta en una denegación de servicio.
*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:Track
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2023-08-15 CVE Reserved
- 2024-01-29 CVE Published
- 2024-04-17 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-2023-40549 | 2024-04-29 | |
| https://bugzilla.redhat.com/show_bug.cgi?id=2241797 | 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
| ||||||