UBUNTU-CVE-2026-8721

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Source
https://ubuntu.com/security/CVE-2026-8721
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-8721.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-8721
Upstream
  • CVE-2026-8721
Published
2026-05-17T19:16:00Z
Modified
2026-05-20T22:03:10.320736293Z
Severity
  • 9.8 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

Crypt::OpenSSL::PKCS12 versions through 1.94 for Perl truncates passwords with embedded NULLs. Password parameters in PKCS12.xs are declared char *, which routes through Perl's default typemap to SvPV_nolen. The Perl length is discarded. The C code (or OpenSSL internally) calls strlen() on the buffer. Any password byte at or after the first NULL is silently dropped. Binary / KDF-derived / HMAC-derived passwords lose entropy without any warnings.

References

Affected packages

Ubuntu:16.04:LTS
libcrypt-openssl-pkcs12-perl

Package

Name
libcrypt-openssl-pkcs12-perl
Purl
pkg:deb/ubuntu/libcrypt-openssl-pkcs12-perl?arch=source&distro=xenial

Affected ranges

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

Affected versions

0.*
0.7-1
0.7-1build1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libcrypt-openssl-pkcs12-perl",
            "binary_version": "0.7-1build1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-8721.json"
Ubuntu:18.04:LTS
libcrypt-openssl-pkcs12-perl

Package

Name
libcrypt-openssl-pkcs12-perl
Purl
pkg:deb/ubuntu/libcrypt-openssl-pkcs12-perl?arch=source&distro=bionic

Affected ranges

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

Affected versions

0.*
0.7-3ubuntu2
0.8-1
0.8-1build1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libcrypt-openssl-pkcs12-perl",
            "binary_version": "0.8-1build1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-8721.json"
Ubuntu:20.04:LTS
libcrypt-openssl-pkcs12-perl

Package

Name
libcrypt-openssl-pkcs12-perl
Purl
pkg:deb/ubuntu/libcrypt-openssl-pkcs12-perl?arch=source&distro=focal

Affected ranges

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

Affected versions

1.*
1.2-1
1.2-1build1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libcrypt-openssl-pkcs12-perl",
            "binary_version": "1.2-1build1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-8721.json"
Ubuntu:24.04:LTS
libcrypt-openssl-pkcs12-perl

Package

Name
libcrypt-openssl-pkcs12-perl
Purl
pkg:deb/ubuntu/libcrypt-openssl-pkcs12-perl?arch=source&distro=noble

Affected ranges

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

Affected versions

1.*
1.9-2
1.9-3
1.9-3build1
1.9-3build3
1.9-3build4

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libcrypt-openssl-pkcs12-perl",
            "binary_version": "1.9-3build4"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-8721.json"
Ubuntu:25.10
libcrypt-openssl-pkcs12-perl

Package

Name
libcrypt-openssl-pkcs12-perl
Purl
pkg:deb/ubuntu/libcrypt-openssl-pkcs12-perl?arch=source&distro=questing

Affected ranges

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

Affected versions

1.*
1.94-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libcrypt-openssl-pkcs12-perl",
            "binary_version": "1.94-1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-8721.json"
Ubuntu:26.04:LTS
libcrypt-openssl-pkcs12-perl

Package

Name
libcrypt-openssl-pkcs12-perl
Purl
pkg:deb/ubuntu/libcrypt-openssl-pkcs12-perl?arch=source&distro=resolute

Affected ranges

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

Affected versions

1.*
1.94-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libcrypt-openssl-pkcs12-perl",
            "binary_version": "1.94-1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-8721.json"