Vulnerability Description
An issue was discovered in wolfSSL before 4.5.0, when single precision is not employed. Local attackers can conduct a cache-timing attack against public key operations. These attackers may already have obtained sensitive information if the affected system has been used for private key operations (e.g., signing with a private key).
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Wolfssl | Wolfssl | < 4.5.0 |
Related Weaknesses (CWE)
References
- https://arxiv.org/abs/2008.12188ExploitThird Party Advisory
- https://github.com/wolfSSL/wolfssl/releases/tag/v4.5.0-stableThird Party Advisory
- https://arxiv.org/abs/2008.12188ExploitThird Party Advisory
- https://github.com/wolfSSL/wolfssl/releases/tag/v4.5.0-stableThird Party Advisory
FAQ
What is CVE-2020-15309?
CVE-2020-15309 is a vulnerability with a CVSS score of 7.0 (HIGH). An issue was discovered in wolfSSL before 4.5.0, when single precision is not employed. Local attackers can conduct a cache-timing attack against public key operations. These attackers may already hav...
How severe is CVE-2020-15309?
CVE-2020-15309 has been rated HIGH with a CVSS base score of 7.0/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2020-15309?
Check the references section above for vendor advisories and patch information. Affected products include: Wolfssl Wolfssl.