UBUNTU-CVE-2017-20240

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Source
https://ubuntu.com/security/CVE-2017-20240
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2017/UBUNTU-CVE-2017-20240.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2017-20240
Upstream
  • CVE-2017-20240
Published
2026-06-12T14:16:00Z
Modified
2026-06-17T04:03:29Z
Severity
  • 5.9 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

Crypt::PBKDF2 versions before 0.261630 for Perl are vulnerable to timing attacks. These versions use Perl's built-in eq comparison. Discrepancies in timing could be used to guess the underlying derived-key.

References

Affected packages

Ubuntu:16.04:LTS
libcrypt-pbkdf2-perl

Package

Name
libcrypt-pbkdf2-perl
Purl
pkg:deb/ubuntu/libcrypt-pbkdf2-perl?arch=source&distro=xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

0.*
0.150900-1
0.160410-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "0.160410-1",
            "binary_name": "libcrypt-pbkdf2-perl"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2017/UBUNTU-CVE-2017-20240.json"
Ubuntu:18.04:LTS
libcrypt-pbkdf2-perl

Package

Name
libcrypt-pbkdf2-perl
Purl
pkg:deb/ubuntu/libcrypt-pbkdf2-perl?arch=source&distro=bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

0.*
0.161520-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "0.161520-1",
            "binary_name": "libcrypt-pbkdf2-perl"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2017/UBUNTU-CVE-2017-20240.json"
Ubuntu:20.04:LTS
libcrypt-pbkdf2-perl

Package

Name
libcrypt-pbkdf2-perl
Purl
pkg:deb/ubuntu/libcrypt-pbkdf2-perl?arch=source&distro=focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

0.*
0.161520-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "0.161520-1",
            "binary_name": "libcrypt-pbkdf2-perl"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2017/UBUNTU-CVE-2017-20240.json"
Ubuntu:22.04:LTS
libcrypt-pbkdf2-perl

Package

Name
libcrypt-pbkdf2-perl
Purl
pkg:deb/ubuntu/libcrypt-pbkdf2-perl?arch=source&distro=jammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

0.*
0.161520-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "0.161520-1",
            "binary_name": "libcrypt-pbkdf2-perl"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2017/UBUNTU-CVE-2017-20240.json"
Ubuntu:24.04:LTS
libcrypt-pbkdf2-perl

Package

Name
libcrypt-pbkdf2-perl
Purl
pkg:deb/ubuntu/libcrypt-pbkdf2-perl?arch=source&distro=noble

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

0.*
0.161520-2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "0.161520-2",
            "binary_name": "libcrypt-pbkdf2-perl"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2017/UBUNTU-CVE-2017-20240.json"
Ubuntu:25.10
libcrypt-pbkdf2-perl

Package

Name
libcrypt-pbkdf2-perl
Purl
pkg:deb/ubuntu/libcrypt-pbkdf2-perl?arch=source&distro=questing

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

0.*
0.161520-2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "0.161520-2",
            "binary_name": "libcrypt-pbkdf2-perl"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2017/UBUNTU-CVE-2017-20240.json"
Ubuntu:26.04:LTS
libcrypt-pbkdf2-perl

Package

Name
libcrypt-pbkdf2-perl
Purl
pkg:deb/ubuntu/libcrypt-pbkdf2-perl?arch=source&distro=resolute

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

0.*
0.161520-2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "0.161520-2",
            "binary_name": "libcrypt-pbkdf2-perl"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2017/UBUNTU-CVE-2017-20240.json"