CVE-2022-46393

moderate-risk

Published 2022-12-15

An issue was discovered in Mbed TLS before 2.28.2 and 3.x before 3.3.0. There is a potential heap-based buffer overflow and heap-based buffer over-read in DTLS if MBEDTLS_SSL_DTLS_CONNECTION_ID is enabled and MBEDTLS_SSL_CID_IN_LEN_MAX > 2 * MBEDTLS_SSL_CID_OUT_LEN_MAX.

Do I need to act?

0.81% chance of exploitation

EPSS score — low exploit probability

Not on CISA KEV list

No confirmed active exploitation reported to CISA

Patch status unknown

Check vendor advisories for fix availability and mitigation guidance

CVSS 9.8/10 Critical

NETWORK / LOW complexity

Affected Products (3)

Mbed Tls

Fedora

Affected Vendors

Fedoraproject Arm

References (10)

Release Notes https://github.com/Mbed-TLS/mbedtls/releases/tag/v2.28.2

Release Notes https://github.com/Mbed-TLS/mbedtls/releases/tag/v3.3.0

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro...

Vendor Advisory https://mbed-tls.readthedocs.io/en/latest/tech-updates/security-advisories/

Release Notes https://github.com/Mbed-TLS/mbedtls/releases/tag/v2.28.2

Release Notes https://github.com/Mbed-TLS/mbedtls/releases/tag/v3.3.0

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro...

Vendor Advisory https://mbed-tls.readthedocs.io/en/latest/tech-updates/security-advisories/

/ 100

moderate-risk

Severity 32/34 · Critical

Exploitability 3/34 · Minimal

Exposure 9/34 · Low