CVE-2020-36426

moderate-risk
Published 2021-07-19

An issue was discovered in Arm Mbed TLS before 2.24.0. mbedtls_x509_crl_parse_der has a buffer over-read (of one byte).

Do I need to act?

~
1.0% chance of exploitation in next 30 days
EPSS score — moderate exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
7
CVSS 7.5/10 High
NETWORK / LOW complexity

Affected Products (2)

Affected Vendors

Debian Arm

References (10)

Issue Tracking https://bugs.gentoo.org/740108
Release Notes https://github.com/ARMmbed/mbedtls/releases/tag/v2.16.8
Release Notes https://github.com/ARMmbed/mbedtls/releases/tag/v2.24.0
Release Notes https://github.com/ARMmbed/mbedtls/releases/tag/v2.7.17
Mailing List https://lists.debian.org/debian-lts-announce/2022/12/msg00036.html
Issue Tracking https://bugs.gentoo.org/740108
Release Notes https://github.com/ARMmbed/mbedtls/releases/tag/v2.16.8
Release Notes https://github.com/ARMmbed/mbedtls/releases/tag/v2.24.0
Release Notes https://github.com/ARMmbed/mbedtls/releases/tag/v2.7.17
Mailing List https://lists.debian.org/debian-lts-announce/2022/12/msg00036.html
36
/ 100
moderate-risk
Severity 26/34 · High
Exploitability 3/34 · Minimal
Exposure 7/34 · Low