PT-2017-9044 · Matrixssl · Matrixssl

Florian Weimer · Published 2017-03-03 · Updated 2017-12-15 · CVE-2016-6882

Positive Technologies (AI Summary)

CVSS v3.1

5.9

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions MatrixSSL versions prior to 3.8.7

Description The issue makes it easier for remote attackers to obtain RSA private key information by conducting a Lenstra side-channel attack when the DHE RSA based cipher suite is supported.

Recommendations For versions prior to 3.8.7, update to version 3.8.7 or later to resolve the issue.

Fix

Information Disclosure

Weakness Enumeration

CWE-320

CWE-200

Related Identifiers

CVE-2016-6882

Affected Products

Matrixssl

References · 7

• https://osv.dev/vulnerability/CVE-2016-6882 · Vendor Advisory
• http://openwall.com/lists/oss-security/2016/08/19/7 · Patch
• ❌ https://github.com/matrixssl/matrixssl/blob/master/CHANGES.md#validation-of-rsa-signature-creation · Patch, Deleted
• https://nvd.nist.gov/vuln/detail/CVE-2016-6882 · Security Note
• https://access.redhat.com/blogs/766093/posts/1976703 · Note
• https://people.redhat.com/~fweimer/rsa-crt-leaks.pdf · Note
• http://securityfocus.com/bid/91488 · Note