Description
An issue was discovered in Mbed TLS before 2.24.0 (and before 2.16.8 LTS and before 2.7.17 LTS). There is missing zeroization of plaintext buffers in mbedtls_ssl_read to erase unused application data from memory.
References (5)
Core 5
Core References
Mailing List, Third Party Advisory mailing-list
https://lists.debian.org/debian-lts-announce/2021/11/msg00021.html
Mailing List, Third Party Advisory mailing-list
https://lists.debian.org/debian-lts-announce/2022/12/msg00036.html
Release Notes, Third Party Advisory
https://github.com/ARMmbed/mbedtls/releases/tag/v2.16.8
Release Notes, Third Party Advisory
https://github.com/ARMmbed/mbedtls/releases/tag/v2.24.0
Release Notes, Third Party Advisory
https://github.com/ARMmbed/mbedtls/releases/tag/v2.7.17
Scores
CVSS v3
7.5
EPSS
0.0140
EPSS Percentile
68.9%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Details
CWE
CWE-212
Status
published
Products (3)
arm/mbed_tls
< 2.7.17
debian/debian_linux
9.0
debian/debian_linux
10.0
Published
Aug 23, 2021
Tracked Since
Feb 18, 2026