// For flags

CVE-2022-35409

Gentoo Linux Security Advisory 202301-08

Severity Score

9.1
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

1
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

An issue was discovered in Mbed TLS before 2.28.1 and 3.x before 3.2.0. In some configurations, an unauthenticated attacker can send an invalid ClientHello message to a DTLS server that causes a heap-based buffer over-read of up to 255 bytes. This can cause a server crash or possibly information disclosure based on error responses. Affected configurations have MBEDTLS_SSL_DTLS_CLIENT_PORT_REUSE enabled and MBEDTLS_SSL_IN_CONTENT_LEN less than a threshold that depends on the configuration: 258 bytes if using mbedtls_ssl_cookie_check, and possibly up to 571 bytes with a custom cookie check function.

Se ha descubierto un problema en Mbed TLS antes de la versión 2.28.1 y 3.x antes de la 3.2.0. En algunas configuraciones, un atacante no autenticado puede enviar un mensaje ClientHello no válido a un servidor DTLS que provoca una sobrelectura del búfer basada en el montón de hasta 255 bytes. Esto puede causar una caída del servidor o posiblemente la divulgación de información basada en las respuestas de error. Las configuraciones afectadas tienen MBEDTLS_SSL_DTLS_CLIENT_PORT_REUSE habilitado y MBEDTLS_SSL_IN_CONTENT_LEN menos que un umbral que depende de la configuración: 258 bytes si se utiliza mbedtls_ssl_cookie_check, y posiblemente hasta 571 bytes con una función de comprobación de cookies personalizada

Multiple vulnerabilities have been discovered in Mbed TLS, the worst of which could result in arbitrary code execution. Versions less than 2.28.1 are affected.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
High
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
Complete
Integrity
None
Availability
Complete
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2022-07-08 CVE Reserved
  • 2022-07-15 CVE Published
  • 2024-08-03 CVE Updated
  • 2024-08-03 First Exploit
  • 2024-12-17 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
CWE
  • CWE-125: Out-of-bounds Read
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Arm
Search vendor "Arm"
Mbed Tls
Search vendor "Arm" for product "Mbed Tls"
< 2.28.1
Search vendor "Arm" for product "Mbed Tls" and version " < 2.28.1"
-
Affected
Arm
Search vendor "Arm"
Mbed Tls
Search vendor "Arm" for product "Mbed Tls"
>= 3.0.0 < 3.2.0
Search vendor "Arm" for product "Mbed Tls" and version " >= 3.0.0 < 3.2.0"
-
Affected
Debian
Search vendor "Debian"
Debian Linux
Search vendor "Debian" for product "Debian Linux"
10.0
Search vendor "Debian" for product "Debian Linux" and version "10.0"
-
Affected