CVE catalog

CVE-2016-3995

libcrypto++: CVE-2016-3995

Severity: Medium
Published: Feb 13, 2017, 6:59:00 PM UTC
Source: [NVD] · [CVE record]
EPSS: 1.86% · Oct 25, 2026

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.

Vulnerable and fixed packages

Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.

Distribution	Package	Release	Version	Status
Debian	libcrypto++	sid	`8.9.0-3`	fixed
Debian	libcrypto++	forky	`8.9.0-3`	fixed
Debian	libcrypto++	trixie	`8.9.0-2`	fixed
Debian	libcrypto++	bookworm	`8.7.0+git220824-1`	fixed
Ubuntu	libcrypto++	14.04	`5.6.1-6`	vulnerable
Ubuntu	libcrypto++	14.04	`5.6.1-6+deb8u1build0.14.04.1`	vulnerable
Ubuntu	libcrypto++	14.04	`5.6.1-6+deb8u3build0.14.04.1`	fixed
Ubuntu	libcrypto++	16.04	`5.6.1-8`	vulnerable
Ubuntu	libcrypto++	16.04	`5.6.1-9`	vulnerable
Ubuntu	libcrypto++	16.04	`5.6.1-9ubuntu0.1`	fixed

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	libcrypto++	source	sid	`5.6.3-6`	not yet assigned	Not reported	Not reported
Debian	libcrypto++	source	forky	`5.6.3-6`	not yet assigned	Not reported	Not reported
Debian	libcrypto++	source	trixie	`5.6.3-6`	not yet assigned	Not reported	Not reported
Debian	libcrypto++	source	bookworm	`5.6.3-6`	not yet assigned	Not reported	Not reported
Ubuntu	libcrypto++	deb	14.04	`5.6.1-6+deb8u3build0.14.04.1`	Not reported	UBUNTU-CVE-2016-3995	Not reported
Ubuntu	libcrypto++	deb	16.04	`5.6.1-9ubuntu0.1`	Not reported	UBUNTU-CVE-2016-3995	Not reported

OpenFactory catalog packages

[Debian 12 (Bookworm)]

[libcrypto++8]Fixed
Source package: [libcrypto++]
Details (2)
- 8.7.0+git220824-1 · amd64 · bookworm
  Fixed · Fixed: 5.6.3-6
  dsa · libcrypto++ · debian · bookworm; dsa · libcrypto++ · debian · 12
- 8.7.0+git220824-1 · arm64 · bookworm
  Fixed · Fixed: 5.6.3-6
  dsa · libcrypto++ · debian · bookworm; dsa · libcrypto++ · debian · 12
[libcrypto++-dev]Fixed
Source package: [libcrypto++]
Details (2)
- 8.7.0+git220824-1 · amd64 · bookworm
  Fixed · Fixed: 5.6.3-6
  dsa · libcrypto++ · debian · bookworm; dsa · libcrypto++ · debian · 12
- 8.7.0+git220824-1 · arm64 · bookworm
  Fixed · Fixed: 5.6.3-6
  dsa · libcrypto++ · debian · bookworm; dsa · libcrypto++ · debian · 12
[libcrypto++-doc]Fixed
Source package: [libcrypto++]
Details (2)
- 8.7.0+git220824-1 · all · bookworm
  Fixed · Fixed: 5.6.3-6
  dsa · libcrypto++ · debian · bookworm; dsa · libcrypto++ · debian · 12
- 8.7.0+git220824-1 · all · bookworm
  Fixed · Fixed: 5.6.3-6
  dsa · libcrypto++ · debian · bookworm; dsa · libcrypto++ · debian · 12
[libcrypto++-utils]Fixed
Source package: [libcrypto++]
Details (2)
- 8.7.0+git220824-1 · amd64 · bookworm
  Fixed · Fixed: 5.6.3-6
  dsa · libcrypto++ · debian · bookworm; dsa · libcrypto++ · debian · 12
- 8.7.0+git220824-1 · arm64 · bookworm
  Fixed · Fixed: 5.6.3-6
  dsa · libcrypto++ · debian · bookworm; dsa · libcrypto++ · debian · 12

[Debian 13 (Trixie)]

[libcrypto++8t64]Fixed
Source package: [libcrypto++]
Details (2)
- 8.9.0-2 · amd64 · trixie
  Fixed · Fixed: 5.6.3-6
  dsa · libcrypto++ · debian · 13
- 8.9.0-2 · arm64 · trixie
  Fixed · Fixed: 5.6.3-6
  dsa · libcrypto++ · debian · 13
[libcrypto++-dev]Fixed
Source package: [libcrypto++]
Details (2)
- 8.9.0-2 · amd64 · trixie
  Fixed · Fixed: 5.6.3-6
  dsa · libcrypto++ · debian · 13
- 8.9.0-2 · arm64 · trixie
  Fixed · Fixed: 5.6.3-6
  dsa · libcrypto++ · debian · 13
[libcrypto++-doc]Fixed
Source package: [libcrypto++]
Details (2)
- 8.9.0-2 · all · trixie
  Fixed · Fixed: 5.6.3-6
  dsa · libcrypto++ · debian · 13
- 8.9.0-2 · all · trixie
  Fixed · Fixed: 5.6.3-6
  dsa · libcrypto++ · debian · 13
[libcrypto++-utils]Fixed
Source package: [libcrypto++]
Details (2)
- 8.9.0-2 · amd64 · trixie
  Fixed · Fixed: 5.6.3-6
  dsa · libcrypto++ · debian · 13
- 8.9.0-2 · arm64 · trixie
  Fixed · Fixed: 5.6.3-6
  dsa · libcrypto++ · debian · 13

Observed: Oct 23, 2026, 5:21:18 PM UTC

References

[Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database]