CVE-2016-3995

Publication date 13 February 2017

Last updated 25 August 2025

Ubuntu priority

Cvss 3 Severity Score

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.

Status

Show unmaintained releases

Package	Ubuntu Release	Status
libcrypto++	18.04 LTS bionic	Not affected
	17.10 artful	Not affected
	17.04 zesty	Not affected
	16.10 yakkety	Not affected
	16.04 LTS xenial	Fixed 5.6.1-9ubuntu0.1
	15.10 wily	Ignored end of life
	14.04 LTS trusty	Fixed 5.6.1-6+deb8u3build0.14.04.1
	12.04 LTS precise	Ignored end of life

Severity score breakdown

CVSS version: CVSS v3.0

Base score 7.5 · High

Base metrics

Parameter	Value
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	None
Scope	Unchanged
Confidentiality impact	High
Integrity impact	None
Availability impact	None

Scores

Parameter	Value
Base score	7.5 · High
Exploitability score	-
Impact score	-

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

CVE-2016-3995

Cvss 3 Severity Score

Description

Status

Severity score breakdown

References

Other references

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