Vulnerability Description
wolfcrypt/src/ecc.c in wolfSSL before 3.15.1.patch allows a memory-cache side-channel attack on ECDSA signatures, aka the Return Of the Hidden Number Problem or ROHNP. To discover an ECDSA key, the attacker needs access to either the local machine or a different virtual machine on the same physical host.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Wolfssl | Wolfssl | < 3.15.3 |
Related Weaknesses (CWE)
References
- https://github.com/wolfSSL/wolfssl/commit/9b9568d500f31f964af26ba8d01e542e1f27e5PatchThird Party Advisory
- https://www.nccgroup.trust/us/our-research/technical-advisory-return-of-the-hiddThird Party Advisory
- https://www.wolfssl.com/wolfssh-and-rohnp/Vendor Advisory
- https://github.com/wolfSSL/wolfssl/commit/9b9568d500f31f964af26ba8d01e542e1f27e5PatchThird Party Advisory
- https://www.nccgroup.trust/us/our-research/technical-advisory-return-of-the-hiddThird Party Advisory
- https://www.wolfssl.com/wolfssh-and-rohnp/Vendor Advisory
FAQ
What is CVE-2018-12436?
CVE-2018-12436 is a vulnerability with a CVSS score of 4.7 (MEDIUM). wolfcrypt/src/ecc.c in wolfSSL before 3.15.1.patch allows a memory-cache side-channel attack on ECDSA signatures, aka the Return Of the Hidden Number Problem or ROHNP. To discover an ECDSA key, the at...
How severe is CVE-2018-12436?
CVE-2018-12436 has been rated MEDIUM with a CVSS base score of 4.7/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2018-12436?
Check the references section above for vendor advisories and patch information. Affected products include: Wolfssl Wolfssl.