CVE-2021-3345
Severity Score
7.8
*CVSS v3.1
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
2
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
-
*SSVC
Descriptions
_gcry_md_block_write in cipher/hash-common.c in Libgcrypt version 1.9.0 has a heap-based buffer overflow when the digest final function sets a large count value. It is recommended to upgrade to 1.9.1 or later.
La función _gcry_md_block_write en el archivo cipher/hash-common.c en la versión 1.9.0 de Libgcrypt tiene un desbordamiento de búfer basado en la pila cuando la función final del resumen establece un valor de recuento grande. Se recomienda actualizar a la versión 1.9.1 o posterior.
*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
- 2021-01-29 CVE Reserved
- 2021-01-29 CVE Published
- 2021-02-07 First Exploit
- 2024-08-03 CVE Updated
- 2024-11-18 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
CWE
- CWE-787: Out-of-bounds Write
CAPEC
References (8)
| URL | Tag | Source |
|---|---|---|
| https://git.gnupg.org/cgi-bin/gitweb.cgi?p=libgcrypt.git%3Ba=commit%3Bh=512c0c75276949f13b6373b5c04f7065af750b08 | X_refsource_misc | |
| https://www.oracle.com//security-alerts/cpujul2021.html | Third Party Advisory |
|
| URL | Date | SRC |
|---|---|---|
| https://github.com/MLGRadish/CVE-2021-3345 | 2021-02-07 | |
| https://github.com/SpiralBL0CK/CVE-2021-3345 | 2024-02-29 |
| URL | Date | SRC |
|---|---|---|
| https://lists.gnupg.org/pipermail/gnupg-announce/2021q1/000456.html | 2023-11-07 |
| URL | Date | SRC |
|---|---|---|
| https://bugs.gentoo.org/show_bug.cgi?id=767814 | 2023-11-07 | |
| https://gnupg.org | 2023-11-07 | |
| https://lists.gnupg.org/pipermail/gnupg-announce/2021q1/000455.html | 2023-11-07 |
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Gnupg Search vendor "Gnupg" | Libgcrypt Search vendor "Gnupg" for product "Libgcrypt" | 1.9.0 Search vendor "Gnupg" for product "Libgcrypt" and version "1.9.0" | - |
Affected
| ||||||
| Oracle Search vendor "Oracle" | Communications Billing And Revenue Management Search vendor "Oracle" for product "Communications Billing And Revenue Management" | 12.0.0.3.0 Search vendor "Oracle" for product "Communications Billing And Revenue Management" and version "12.0.0.3.0" | - |
Affected
| ||||||