// For flags

CVE-2022-20792

 

Severity Score

7.8
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

A vulnerability in the regex module used by the signature database load module of Clam AntiVirus (ClamAV) versions 0.104.0 through 0.104.2 and LTS version 0.103.5 and prior versions could allow an authenticated, local attacker to crash ClamAV at database load time, and possibly gain code execution. The vulnerability is due to improper bounds checking that may result in a multi-byte heap buffer overwflow write. An attacker could exploit this vulnerability by placing a crafted CDB ClamAV signature database file in the ClamAV database directory. An exploit could allow the attacker to run code as the clamav user.

Una vulnerabilidad en el módulo regex usado por el módulo de carga de la base de datos de firmas de Clam AntiVirus (ClamAV) versiones 0.104.0 hasta 0.104.2 y LTS versiones 0.103.5 y anteriores, podría permitir a un atacante local autenticado bloquear ClamAV en el momento de la carga de la base de datos, y posiblemente obtener una ejecución de código. La vulnerabilidad es debido a una comprobación inapropiada de límites que puede resultar en una escritura de desbordamiento del búfer de la pila de varios bytes. Un atacante podría explotar esta vulnerabilidad al colocar un archivo de base de datos de firmas CDB ClamAV diseñado en el directorio de la base de datos de ClamAV. Una explotación podría permitir al atacante ejecutar código como el usuario clamav

*Credits: N/A
CVSS Scores
Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2021-11-02 CVE Reserved
  • 2022-05-17 CVE Published
  • 2024-01-21 EPSS Updated
  • 2024-09-16 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-125: Out-of-bounds Read
  • CWE-787: Out-of-bounds Write
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Clamav
Search vendor "Clamav"
 Clamav
Search vendor "Clamav" for product "Clamav"
 <= 0.103.5
Search vendor "Clamav" for product "Clamav" and version " <= 0.103.5"
-
Affected
Clamav
Search vendor "Clamav"
 Clamav
Search vendor "Clamav" for product "Clamav"
 >= 0.104.0 <= 0.104.2
Search vendor "Clamav" for product "Clamav" and version " >= 0.104.0 <= 0.104.2"
-
Affected