Information disclosure in wolfSSL



Published: 2020-08-24
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2020-11735
CWE-ID CWE-200
Exploitation vector Network
Public exploit N/A
Vulnerable software
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wolfSSL
Universal components / Libraries / Libraries used by multiple products

Vendor wolfSSL

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Information disclosure

EUVDB-ID: #VU45990

Risk: Low

CVSSv3.1:

CVE-ID: CVE-2020-11735

CWE-ID: CWE-200 - Information Exposure

Exploit availability: No

Description

The vulnerability allows an attacker to gain access to potentially sensitive information.

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."

Mitigation

Install updates from vendor's website.

Vulnerable software versions

wolfSSL: 4.0 - 4.3.0


CPE2.3 External links

http://github.com/wolfSSL/wolfssl/commit/1de07da61f0c8e9926dcbd68119f73230dae283f
http://github.com/wolfSSL/wolfssl/releases/tag/v4.4.0-stable

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?



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