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CVE-2020-11735

Good to know:

Date: June 25, 2020

The private-key operations in ecc.c in wolfSSL before 4.4.0 do not use a constant-time modular inverse when mapping to affine coordinates, aka a "projective coordinates leak."

Language: C

Severity Score

5.3

Related Resources (6)

Url: https://nvd.nist.gov/vuln/detail/CVE-2020-11735

Url: https://people.canonical.com/~ubuntu-security/cve/CVE-2020-11735

Url: https://github.com/wolfSSL/wolfssl/commit/1de07da61f0c8e9926dcbd68119f73230dae283f

Url: https://security-tracker.debian.org/tracker/CVE-2020-11735

Url: https://github.com/wolfSSL/wolfssl/releases/tag/v4.4.0-stable

Url: https://www.mend.io/vulnerability-database/CVE-2020-11735

Severity Score

5.3

Weakness Type (CWE)

Inadequate Encryption Strength

CWE-326

Top Fix

Upgrade Version

Upgrade to version 4.4.0

CVSS v3.1

Base Score:	5.3
Attack Vector (AV):	NETWORK
Attack Complexity (AC):	LOW
Privileges Required (PR):	NONE
User Interaction (UI):	NONE
Scope (S):	UNCHANGED
Confidentiality (C):	LOW
Integrity (I):	NONE
Availability (A):	NONE

CVSS v2

Base Score:	5.0
Access Vector (AV):	NETWORK
Access Complexity (AC):	LOW
Authentication (AU):	NONE
Confidentiality (C):	PARTIAL
Integrity (I):	NONE
Availability (A):	NONE
Additional information:

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