CVE-2021-3623
Severity Score
6.1
*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 libtpms. The flaw can be triggered by specially-crafted TPM 2 command packets containing illegal values and may lead to an out-of-bounds access when the volatile state of the TPM 2 is marshalled/written or unmarshalled/read. The highest threat from this vulnerability is to system availability.
Se ha encontrado un fallo en libtpms. El fallo puede ser desencadenado por paquetes de comandos TPM 2 especialmente diseñados que contengan valores ilegales y puede conllevar a un acceso fuera de límites cuando el estado volátil del TPM 2 es marshalled/written o unmarshalled/read. La mayor amenaza de esta vulnerabilidad es la disponibilidad del sistema
*Credits:
N/A
CVSS Scores
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Authentication
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:-
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2021-06-28 CVE Reserved
- 2022-03-02 CVE Published
- 2023-06-07 EPSS Updated
- 2024-08-03 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-787: Out-of-bounds Write
CAPEC
References (6)
| URL | Tag | Source |
|---|---|---|
| https://github.com/stefanberger/libtpms/pull/223 | Issue Tracking |
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| https://bugzilla.redhat.com/show_bug.cgi?id=1976806 | 2023-11-07 | |
| https://github.com/stefanberger/libtpms/commit/2e6173c | 2023-11-07 | |
| https://github.com/stefanberger/libtpms/commit/2f30d62 | 2023-11-07 | |
| https://github.com/stefanberger/libtpms/commit/7981d9a | 2023-11-07 |
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Libtpms Project Search vendor "Libtpms Project" | Libtpms Search vendor "Libtpms Project" for product "Libtpms" | < 0.6.5 Search vendor "Libtpms Project" for product "Libtpms" and version " < 0.6.5" | - |
Affected
| ||||||
| Libtpms Project Search vendor "Libtpms Project" | Libtpms Search vendor "Libtpms Project" for product "Libtpms" | >= 0.7.0 < 0.7.8 Search vendor "Libtpms Project" for product "Libtpms" and version " >= 0.7.0 < 0.7.8" | - |
Affected
| ||||||
| Libtpms Project Search vendor "Libtpms Project" | Libtpms Search vendor "Libtpms Project" for product "Libtpms" | >= 0.8.0 < 0.8.4 Search vendor "Libtpms Project" for product "Libtpms" and version " >= 0.8.0 < 0.8.4" | - |
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" | advanced_virtualization |
Affected
| ||||||
| Fedoraproject Search vendor "Fedoraproject" | Fedora Search vendor "Fedoraproject" for product "Fedora" | 34 Search vendor "Fedoraproject" for product "Fedora" and version "34" | - |
Affected
| ||||||