Out-of-bounds Read The advisory has been revoked - it doesn't affect any version of package mbedtls (opens in a new tab)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-UBUNTU1604-MBEDTLS-3174130
- published21 Mar 2026
- disclosed15 Dec 2022
Introduced: 15 Dec 2022
CVE-2022-46393 (opens in a new tab)Amendment
The Ubuntu security team deemed this advisory irrelevant for Ubuntu:16.04.
NVD Description
Note: Versions mentioned in the description apply only to the upstream mbedtls package and not the mbedtls package as distributed by Ubuntu.
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.
References
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2022-46393
- 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://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%40lists.fedoraproject.org/message/4BR7ZCVKLPGCOEEALUHZMFHXQHR6S4QL/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6XMKJ5IMJEPXYAHHU56Z4P2FSYIEAESB/
- https://mbed-tls.readthedocs.io/en/latest/tech-updates/security-advisories/