UBUNTU-CVE-2016-3995

See a problem?
Please try reporting it to the source first.
Source
https://ubuntu.com/security/CVE-2016-3995
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2016/UBUNTU-CVE-2016-3995.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2016-3995
Upstream
Published
2017-02-13T18:59:00Z
Modified
2025-07-16T07:17:52.223524Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

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.

References

Affected packages

Ubuntu:14.04:LTS / libcrypto++

Package

Name
libcrypto++
Purl
pkg:deb/ubuntu/libcrypto++@5.6.1-6+deb8u3build0.14.04.1?arch=source&distro=trusty

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
5.6.1-6+deb8u3build0.14.04.1

Affected versions

5.*

5.6.1-6
5.6.1-6+deb8u1build0.14.04.1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "5.6.1-6+deb8u3build0.14.04.1",
            "binary_name": "libcrypto++-dev"
        },
        {
            "binary_version": "5.6.1-6+deb8u3build0.14.04.1",
            "binary_name": "libcrypto++-dev-dbgsym"
        },
        {
            "binary_version": "5.6.1-6+deb8u3build0.14.04.1",
            "binary_name": "libcrypto++-doc"
        },
        {
            "binary_version": "5.6.1-6+deb8u3build0.14.04.1",
            "binary_name": "libcrypto++-utils"
        },
        {
            "binary_version": "5.6.1-6+deb8u3build0.14.04.1",
            "binary_name": "libcrypto++-utils-dbgsym"
        },
        {
            "binary_version": "5.6.1-6+deb8u3build0.14.04.1",
            "binary_name": "libcrypto++9"
        },
        {
            "binary_version": "5.6.1-6+deb8u3build0.14.04.1",
            "binary_name": "libcrypto++9-dbg"
        },
        {
            "binary_version": "5.6.1-6+deb8u3build0.14.04.1",
            "binary_name": "libcrypto++9-dbgsym"
        }
    ],
    "availability": "No subscription required"
}

Ubuntu:16.04:LTS / libcrypto++

Package

Name
libcrypto++
Purl
pkg:deb/ubuntu/libcrypto++@5.6.1-9ubuntu0.1?arch=source&distro=xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
5.6.1-9ubuntu0.1

Affected versions

5.*

5.6.1-8
5.6.1-9

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "5.6.1-9ubuntu0.1",
            "binary_name": "libcrypto++-dev"
        },
        {
            "binary_version": "5.6.1-9ubuntu0.1",
            "binary_name": "libcrypto++-dev-dbgsym"
        },
        {
            "binary_version": "5.6.1-9ubuntu0.1",
            "binary_name": "libcrypto++-doc"
        },
        {
            "binary_version": "5.6.1-9ubuntu0.1",
            "binary_name": "libcrypto++-utils"
        },
        {
            "binary_version": "5.6.1-9ubuntu0.1",
            "binary_name": "libcrypto++-utils-dbgsym"
        },
        {
            "binary_version": "5.6.1-9ubuntu0.1",
            "binary_name": "libcrypto++9v5"
        },
        {
            "binary_version": "5.6.1-9ubuntu0.1",
            "binary_name": "libcrypto++9v5-dbg"
        },
        {
            "binary_version": "5.6.1-9ubuntu0.1",
            "binary_name": "libcrypto++9v5-dbgsym"
        }
    ],
    "availability": "No subscription required"
}