Side-Channel attack in wolfSSL
| Risk | Low |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2021-24116 |
| CWE-ID | CWE-208 |
| Exploitation vector | Local |
| Public exploit | N/A |
| Vulnerable software Subscribe |
wolfSSL Universal components / Libraries / Libraries used by multiple products |
| Vendor | wolfSSL |
Security Bulletin
This security bulletin contains one low risk vulnerability.
1) Side channel attack
EUVDB-ID: #VU54674
Risk: Low
CVSSv3.1: 2.9 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2021-24116
CWE-ID:
CWE-208 - Information Exposure Through Timing Discrepancy
Exploit availability: No
DescriptionThe vulnerability allows a local user to gain access to sensitive information.
The vulnerability exists due to observable timing discrepancy in base64 PEM decoding.A local user can gain access to sensitive information.Mitigation
Install updates from vendor's website.
Vulnerable software versionswolfSSL: 2.0.3 - 4.5.0
External linkshttp://github.com/wolfSSL/wolfssl/releases/tag/v4.8.0-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.
