Medium severity · published Jul 14, 2021
CVE-2021-24119
In Trusted Firmware Mbed TLS 2.24.0, a side-channel vulnerability in base64 PEM file decoding allows system-level (administrator) attackers to obtain information about secret RSA…
4.9
CVSS
1.5%
EPSS
No
On KEV
Description
In Trusted Firmware Mbed TLS 2.24.0, a side-channel vulnerability in base64 PEM file decoding allows system-level (administrator) attackers to obtain information about secret RSA keys via a controlled-channel and side-channel attack on software running in isolated environments that can be single stepped, especially Intel SGX.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
High
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.5% · higher than 74% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DL
Debian Linux · Debian
9.0; 10.0 · source: NVD
FE
Fedora · Fedoraproject
33; 34 · source: NVD
MT
Mbed Tls · Arm
before 2.26.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-24119
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-24119
Release Notes
https://github.com/ARMmbed/mbedtls/releases
Release Notes
https://github.com/UzL-ITS/util-lookup/blob/main/cve-vulnerability-publication.md
Mailing List
https://lists.debian.org/debian-lts-announce/2021/11/msg00021.html
Mailing List
https://lists.debian.org/debian-lts-announce/2022/12/msg00036.html
Mailing List
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DRRVY7DMTX3ECFNZKDYTSFEG5AI2HBC6/
Mailing List
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EYJW7HAW3TDV2YMDFYXP3HD6WRQRTLJW/
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