CVE-2016-3995

Description

The timing attack protection in Rijndael::Enc::ProcessAndXorBlock and Rijndael::Dec::ProcessAndXorBlock in Crypto++ (aka cryptopp) before 5.6.4 may be optimized out by the compiler, which allows attackers to conduct timing attacks.

Category

7.5
CVSS
Severity: High
CVSS 3.0 •
CVSS 2.0 •
EPSS 1.03% Top 25%
Third-Party Advisory openwall.com Third-Party Advisory securityfocus.com Third-Party Advisory github.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://www.openwall.com/lists/oss-security/2016/04/11/2 mailing list third party advisory patch
https://github.com/weidai11/cryptopp/issues/146 issue tracking third party advisory patch
http://www.securityfocus.com/bid/85975 vdb entry third party advisory

Frequently Asked Questions

What is the severity of CVE-2016-3995?
CVE-2016-3995 has been scored as a high severity vulnerability.
How to fix CVE-2016-3995?
To fix CVE-2016-3995, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2016-3995 being actively exploited in the wild?
It is possible that CVE-2016-3995 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.
© 2025 Under My Watch. All Rights Reserved.