Vulnerability Description
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.
CVSS Score
CRITICAL
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Arm | Mbed Tls | < 2.28.2 |
| Fedoraproject | Fedora | 36 |
Related Weaknesses (CWE)
References
- https://github.com/Mbed-TLS/mbedtls/releases/tag/v2.28.2Release NotesThird Party Advisory
- https://github.com/Mbed-TLS/mbedtls/releases/tag/v3.3.0Release NotesThird Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://mbed-tls.readthedocs.io/en/latest/tech-updates/security-advisories/Vendor Advisory
- https://github.com/Mbed-TLS/mbedtls/releases/tag/v2.28.2Release NotesThird Party Advisory
- https://github.com/Mbed-TLS/mbedtls/releases/tag/v3.3.0Release NotesThird Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://mbed-tls.readthedocs.io/en/latest/tech-updates/security-advisories/Vendor Advisory
FAQ
What is CVE-2022-46393?
CVE-2022-46393 is a vulnerability with a CVSS score of 9.8 (CRITICAL). 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 ena...
How severe is CVE-2022-46393?
CVE-2022-46393 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2022-46393?
Check the references section above for vendor advisories and patch information. Affected products include: Arm Mbed Tls, Fedoraproject Fedora.