Vulnerability in Wolfssl
CVE-2017-2800
A specially crafted x509 certificate can cause a single out of bounds byte overwrite in wolfSSL through 3.10.2 resulting in potential certificate validation vulnerabilities, denial of service and possible remote code execution. In order to trigger this vulnerability, the attacker needs to supply a malicious x509 certificate to either a server or a client application using this library.
Vulnerability class: Improper Certificate Validation
EPSS: 0.085 (94.5th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Wolfssl — versions 3.10.2
Weakness classification (CWE)
Public proof-of-concept exploits
References
- talos-cna@cisco.com (Exploit, VDB Entry, Third Party Advisory, exploit, x_refsource_EXPLOIT-DB)
- talos-cna@cisco.com (Exploit, Third Party Advisory, x_refsource_MISC)
Frequently asked questions
- What is CVE-2017-2800?
- CVE-2017-2800 is a critical-severity vulnerability in Wolfssl, classified under Improper Certificate Validation. CVSS score: 9.8/10. Published 2017-05-24.
- How severe is CVE-2017-2800?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2017-2800 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.