CVE-2022-46393: Buffer Overflow
First published: Thu Dec 15 2022(Updated: )
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.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| ARM mbed TLS | <2.28.2 | |
| ARM mbed TLS | >=3.0.0<3.3.0 | |
| Fedoraproject Fedora | =36 | |
| Fedoraproject Fedora | =37 |
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Reference Links
- https://github.com/Mbed-TLS/mbedtls/releases/tag/v2.28.2
- https://github.com/Mbed-TLS/mbedtls/releases/tag/v3.3.0
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4BR7ZCVKLPGCOEEALUHZMFHXQHR6S4QL/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/6XMKJ5IMJEPXYAHHU56Z4P2FSYIEAESB/
- https://mbed-tls.readthedocs.io/en/latest/tech-updates/security-advisories/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4BR7ZCVKLPGCOEEALUHZMFHXQHR6S4QL/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6XMKJ5IMJEPXYAHHU56Z4P2FSYIEAESB/
Frequently Asked Questions
What is the vulnerability ID of this issue?
The vulnerability ID of this issue is CVE-2022-46393.
What is the severity of CVE-2022-46393?
The severity of CVE-2022-46393 is critical with a CVSS score of 9.8.
What is the affected software?
The affected software includes ARM mbed TLS versions up to 2.28.2 and versions 3.0.0 to 3.3.0, as well as Fedora 36 and Fedora 37.
What is the description of CVE-2022-46393?
CVE-2022-46393 is a potential heap-based buffer overflow and heap-based buffer over-read vulnerability in DTLS if MBEDTLS_SSL_DTLS_CONNECTION_ID is enabled and MBEDTLS_SSL_CID_IN_LEN_MAX > 2 * MBEDTLS_SSL_CID_OUT_LEN_MAX.
How can I fix CVE-2022-46393?
To fix CVE-2022-46393, it is recommended to update to Mbed TLS version 2.28.2 or 3.3.0, or apply the relevant patches provided by the vendor.
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