Vulnerability Details : CVE-2020-36424
An issue was discovered in Arm Mbed TLS before 2.24.0. An attacker can recover a private key (for RSA or static Diffie-Hellman) via a side-channel attack against generation of base blinding/unblinding values.
Products affected by CVE-2020-36424
- cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
- cpe:2.3:a:arm:mbed_tls:*:*:*:*:*:*:*:*
- cpe:2.3:a:arm:mbed_tls:*:*:*:*:*:*:*:*
- cpe:2.3:a:arm:mbed_tls:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2020-36424
0.07%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 17 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2020-36424
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
1.9
|
LOW | AV:L/AC:M/Au:N/C:P/I:N/A:N |
3.4
|
2.9
|
NIST | |
|
4.7
|
MEDIUM | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N |
1.0
|
3.6
|
NIST |
CWE ids for CVE-2020-36424
-
The product behaves differently or sends different responses under different circumstances in a way that is observable to an unauthorized actor, which exposes security-relevant information about the state of the product, such as whether a particular operation was successful or not.Assigned by: nvd@nist.gov (Primary)
References for CVE-2020-36424
-
https://lists.debian.org/debian-lts-announce/2022/12/msg00036.html
[SECURITY] [DLA 3249-1] mbedtls security updateMailing List;Third Party Advisory
-
https://github.com/ARMmbed/mbedtls/releases/tag/v2.24.0
Release Mbed TLS 2.24.0 · ARMmbed/mbedtls · GitHubRelease Notes;Third Party Advisory
-
https://github.com/ARMmbed/mbedtls/releases/tag/v2.16.8
Release Mbed TLS 2.16.8 · ARMmbed/mbedtls · GitHubRelease Notes;Third Party Advisory
-
https://tls.mbed.org/tech-updates/security-advisories/mbedtls-security-advisory-2020-09-2
Local side channel attack on RSA and static Diffie-Hellman - Tech Updates - Mbed TLS (Previously PolarSSL)Vendor Advisory
-
https://github.com/ARMmbed/mbedtls/releases/tag/v2.7.17
Release Mbed TLS 2.7.17 · ARMmbed/mbedtls · GitHubRelease Notes;Third Party Advisory
-
https://bugs.gentoo.org/740108
740108 – (CVE-2020-16150, CVE-2020-36424, CVE-2020-36425, CVE-2020-36426) <net-libs/mbedtls-{2.16.8,2.24.0}: Multiple vulnerabilities (CVE-2020-{16150,36424,36425,36426})Issue Tracking;Patch;Third Party Advisory
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