Vulnerability Description
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."
CVSS Score
5.3
MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Wolfssl | Wolfssl | < 4.4.0 |
Related Weaknesses (CWE)
References
- https://github.com/wolfSSL/wolfssl/commit/1de07da61f0c8e9926dcbd68119f73230dae28PatchThird Party Advisory
- https://github.com/wolfSSL/wolfssl/releases/tag/v4.4.0-stableRelease NotesThird Party Advisory
- https://github.com/wolfSSL/wolfssl/commit/1de07da61f0c8e9926dcbd68119f73230dae28PatchThird Party Advisory
- https://github.com/wolfSSL/wolfssl/releases/tag/v4.4.0-stableRelease NotesThird Party Advisory
FAQ
What is CVE-2020-11735?
CVE-2020-11735 is a vulnerability with a CVSS score of 5.3 (MEDIUM). 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."
How severe is CVE-2020-11735?
CVE-2020-11735 has been rated MEDIUM with a CVSS base score of 5.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2020-11735?
Check the references section above for vendor advisories and patch information. Affected products include: Wolfssl Wolfssl.