CVE-2022-35409

Published Jul 15, 2022 CVSS 3.1 · 9.1 Critical EPSS 2.3% KEV · Not listed
Description
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Debian DLA Debian DLA DLA-3249-1 mbedtls security update
EUVD EUVD EUVD-2022-38299 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.
History
Type Values Removed Values Added
First Time appeared Trustedfirmware
Trustedfirmware mbed Tls
CPEs cpe:2.3:a:trustedfirmware:mbed_tls:*:*:*:*:*:*:*:*
Vendors & Products Trustedfirmware
Trustedfirmware mbed Tls
Weaknesses

Sources

Status
PUBLISHED
Assigner
mitre
Published
Updated
Aug 3, 2024, 9:36 AM
Reserved
Jul 8, 2022, 12:00 AM
Status
Modified
Published
Jul 15, 2022, 2:15 PM
Modified
Jun 17, 2026, 4:51 AM