CVE-2020-10932
Arm Mbed TLS ECDSA Private Key Information Disclosure Vulnerability
Description
An issue was discovered in Arm Mbed TLS before 2.16.6 and 2.7.x before 2.7.15. An attacker that can get precise enough side-channel measurements can recover the long-term ECDSA private key by (1) reconstructing the projective coordinate of the result of scalar multiplication by exploiting side channels in the conversion to affine coordinates; (2) using an attack described by Naccache, Smart, and Stern in 2003 to recover a few bits of the ephemeral scalar from those projective coordinates via several measurements; and (3) using a lattice attack to get from there to the long-term ECDSA private key used for the signatures. Typically an attacker would have sufficient access when attacking an SGX enclave and controlling the untrusted OS.
INFO
Published Date :
April 15, 2020, 2:15 p.m.
Last Modified :
March 3, 2023, 3:32 p.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
3.6
Exploitability Score :
1.0
Affected Products
The following products are affected by CVE-2020-10932
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2020-10932.
| URL | Resource |
|---|---|
| https://lists.debian.org/debian-lts-announce/2022/12/msg00036.html | Mailing List Third Party Advisory |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FCWN5HIF4CJ2LZTOMEBJ7Q4IMMV7ZU2V/ | Mailing List Third Party Advisory |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZNOS2IIBH5WNJXZUV546PY7666DE7Y3L/ | Mailing List Third Party Advisory |
| https://tls.mbed.org/tech-updates/releases/mbedtls-2.16.6-and-2.7.15-released | Release Notes |
| https://tls.mbed.org/tech-updates/security-advisories | Vendor Advisory |
| https://tls.mbed.org/tech-updates/security-advisories/mbedtls-security-advisory-2020-04 | Vendor Advisory |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2020-10932 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2020-10932 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
Modified Analysis by [email protected]
Mar. 03, 2023
Action Type Old Value New Value Removed CVSS V3.1 NIST AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N Added CVSS V3.1 NIST AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N Changed Reference Type https://lists.debian.org/debian-lts-announce/2022/12/msg00036.html No Types Assigned https://lists.debian.org/debian-lts-announce/2022/12/msg00036.html Mailing List, Third Party Advisory Changed Reference Type https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FCWN5HIF4CJ2LZTOMEBJ7Q4IMMV7ZU2V/ No Types Assigned https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FCWN5HIF4CJ2LZTOMEBJ7Q4IMMV7ZU2V/ Mailing List, Third Party Advisory Changed Reference Type https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZNOS2IIBH5WNJXZUV546PY7666DE7Y3L/ No Types Assigned https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZNOS2IIBH5WNJXZUV546PY7666DE7Y3L/ Mailing List, Third Party Advisory Changed Reference Type https://tls.mbed.org/tech-updates/releases/mbedtls-2.16.6-and-2.7.15-released Release Notes, Vendor Advisory https://tls.mbed.org/tech-updates/releases/mbedtls-2.16.6-and-2.7.15-released Release Notes Added CPE Configuration OR *cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Dec. 27, 2022
Action Type Old Value New Value Removed Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/FCWN5HIF4CJ2LZTOMEBJ7Q4IMMV7ZU2V/ [Mailing List, Third Party Advisory] Removed Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/ZNOS2IIBH5WNJXZUV546PY7666DE7Y3L/ [Mailing List, Third Party Advisory] Added Reference https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZNOS2IIBH5WNJXZUV546PY7666DE7Y3L/ [No Types Assigned] Added Reference https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FCWN5HIF4CJ2LZTOMEBJ7Q4IMMV7ZU2V/ [No Types Assigned] -
CVE Modified by [email protected]
Dec. 26, 2022
Action Type Old Value New Value Added Reference https://lists.debian.org/debian-lts-announce/2022/12/msg00036.html [No Types Assigned] -
Modified Analysis by [email protected]
May. 03, 2022
Action Type Old Value New Value Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/FCWN5HIF4CJ2LZTOMEBJ7Q4IMMV7ZU2V/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/FCWN5HIF4CJ2LZTOMEBJ7Q4IMMV7ZU2V/ Mailing List, Third Party Advisory Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/ZNOS2IIBH5WNJXZUV546PY7666DE7Y3L/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/ZNOS2IIBH5WNJXZUV546PY7666DE7Y3L/ Mailing List, Third Party Advisory Added CPE Configuration OR *cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:* *cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:* -
CWE Remap by [email protected]
Jul. 21, 2021
Action Type Old Value New Value Changed CWE CWE-327 CWE-203 CWE-327 -
CVE Modified by [email protected]
Jun. 05, 2020
Action Type Old Value New Value Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/ZNOS2IIBH5WNJXZUV546PY7666DE7Y3L/ [No Types Assigned] -
CVE Modified by [email protected]
Jun. 05, 2020
Action Type Old Value New Value Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/FCWN5HIF4CJ2LZTOMEBJ7Q4IMMV7ZU2V/ [No Types Assigned] -
Initial Analysis by [email protected]
Apr. 22, 2020
Action Type Old Value New Value Added CVSS V2 NIST (AV:L/AC:M/Au:N/C:P/I:N/A:N) Added CVSS V3.1 NIST AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N Changed Reference Type https://tls.mbed.org/tech-updates/releases/mbedtls-2.16.6-and-2.7.15-released No Types Assigned https://tls.mbed.org/tech-updates/releases/mbedtls-2.16.6-and-2.7.15-released Release Notes, Vendor Advisory Changed Reference Type https://tls.mbed.org/tech-updates/security-advisories No Types Assigned https://tls.mbed.org/tech-updates/security-advisories Vendor Advisory Changed Reference Type https://tls.mbed.org/tech-updates/security-advisories/mbedtls-security-advisory-2020-04 No Types Assigned https://tls.mbed.org/tech-updates/security-advisories/mbedtls-security-advisory-2020-04 Vendor Advisory Added CWE NIST CWE-327 Added CPE Configuration OR *cpe:2.3:a:arm:mbed_tls:*:*:*:*:*:*:*:* versions from (including) 2.7.0 up to (excluding) 2.7.15 *cpe:2.3:a:arm:mbed_tls:*:*:*:*:*:*:*:* versions from (including) 2.16.0 up to (excluding) 2.16.6
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2020-10932 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2020-10932
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.06 }} 0.00%
score
0.21741
percentile