Information disclosure in wolfSSL



Published: 2017-02-24 | Updated: 2020-07-23
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2017-6076
CWE-ID CWE-200
Exploitation vector Local
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: #VU31445

Risk: Low

CVSSv3.1: 4.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2017-6076

CWE-ID: CWE-200 - Information exposure

Exploit availability: No

Description

The vulnerability allows a local authenticated user to gain access to sensitive information.

In versions of wolfSSL before 3.10.2 the function fp_mul_comba makes it easier to extract RSA key information for a malicious user who has access to view cache on a machine.

Mitigation

Install update from vendor's website.

Vulnerable software versions

wolfSSL: 3.10.0

External links

http://www.securityfocus.com/bid/96422
http://github.com/wolfSSL/wolfssl/releases/tag/v3.10.2-stable


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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