Heap-based buffer overflow in mbed TLS - CVE-2023-45199
Published: September 23, 2024
Vulnerability identifier: #VU97655
CSH Severity: High
CVSS v4: 9.2 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2023-45199
CWE-ID: CWE-122
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error in TLS handshake parsing with ECDH. A remote attacker can send specially crafted input to the application, trigger a heap-based buffer overflow and execute arbitrary code on the target system.
A TLS 1.2 server configured with MBEDTLS_USE_PSA_CRYPTO and with support for a cipher suite using ECDH and a signature is vulnerable.
Affected software
mbed TLS
Gentoo Linux
net-libs/mbedtls
Gentoo Linux
net-libs/mbedtls
How to mitigate CVE-2023-45199
Install update from vendor's website.
mbed TLS - update to 3.5.0
net-libs/mbedtls - update to 2.28.7
net-libs/mbedtls - update to 2.28.7