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.
References (5)
Core 5
Core References
Release Notes, Third Party Advisory
https://github.com/Mbed-TLS/mbedtls/releases/tag/v2.28.2
Release Notes, Third Party Advisory
https://github.com/Mbed-TLS/mbedtls/releases/tag/v3.3.0
Mailing List, Third Party Advisory vendor-advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4BR7ZCVKLPGCOEEALUHZMFHXQHR6S4QL/
Mailing List, Third Party Advisory vendor-advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6XMKJ5IMJEPXYAHHU56Z4P2FSYIEAESB/
Scores
CVSS v3
9.8
EPSS
0.0082
EPSS Percentile
74.4%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
yes
Technical Impact
total
Details
CWE
CWE-125
CWE-787
Status
published
Products (3)
arm/mbed_tls
< 2.28.2
fedoraproject/fedora
36
fedoraproject/fedora
37
Published
Dec 15, 2022
Tracked Since
Feb 18, 2026