PT-2018-11172 · Wolfssl · Wolfssl

Ryan Keegan · Published 2018-06-15 · Updated 2018-08-06 · CVE-2018-12436

Positive Technologies (AI Summary)

CVSS v3.1

4.7

Medium

Base vector

AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N

Name of the Vulnerable Software and Affected Versions wolfSSL versions prior to 3.15.1

Description The issue allows for a memory-cache side-channel attack on ECDSA signatures, also known as the Return Of the Hidden Number Problem or ROHNP. An attacker can discover an ECDSA key if they have access to either the local machine or a different virtual machine on the same physical host.

Recommendations For versions prior to 3.15.1, update to version 3.15.1 or later to resolve the issue.

Fix

Information Disclosure

Weakness Enumeration

CWE-200

Related Identifiers

CVE-2018-12436

Affected Products

Wolfssl

References · 10

• https://github.com/wolfSSL/wolfssl/commit/9b9568d500f31f964af26ba8d01e542e1f27e5ca · Patch
• https://osv.dev/vulnerability/DEBIAN-CVE-2018-12436 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2018-12436 · Security Note
• https://wolfssl.com/wolfssh-and-rohnp · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2018-12436 · Vendor Advisory
• https://ubuntu.com/security/CVE-2018-12436 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2018-12436 · Security Note
• https://osv.dev/vulnerability/CVE-2018-12436 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2018-12436 · Vendor Advisory
• https://nccgroup.trust/us/our-research/technical-advisory-return-of-the-hidden-number-problem · Note