Information Exposure Affecting libcrypto++ package, versions <5.6.1-9ubuntu0.1


Severity

Recommended
medium

Based on Ubuntu security rating.

Threat Intelligence

EPSS
0.18% (56th percentile)

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  • Snyk IDSNYK-UBUNTU1604-LIBCRYPTO-293589
  • published13 Feb 2017
  • disclosed13 Feb 2017

Introduced: 13 Feb 2017

CVE-2016-3995  (opens in a new tab)
CWE-200  (opens in a new tab)

How to fix?

Upgrade Ubuntu:16.04 libcrypto++ to version 5.6.1-9ubuntu0.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libcrypto++ package and not the libcrypto++ package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

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.