UBUNTU-CVE-2026-58102

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Source
https://ubuntu.com/security/CVE-2026-58102
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-58102.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-58102
Upstream
Published
2026-07-13T23:16:00Z
Modified
2026-07-15T19:48:17.978251438Z
Severity
  • 9.1 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

Crypt::OpenSSL::X509 versions before 2.1.3 for Perl allow a heap out-of-bounds read via a long certificate extension OID in hvexts. When building the extension hash (via extensions(), extensionsbylongname(), extensionsbyoid(), or hasextensionoid()), the code passes OBJobj2txt()'s return value as the hash-key length; because that value is the OID's full text length rather than the bytes written to the fixed-size buffer (129 bytes), an OID whose text is longer than the 129-byte buffer causes a read past the allocation, exposing adjacent heap memory as the returned hash key. extensionsby_name() uses the static shortname path and is not affected.

References

Affected packages

Ubuntu:16.04:LTS
libcrypt-openssl-x509-perl

Package

Name
libcrypt-openssl-x509-perl
Purl
pkg:deb/ubuntu/libcrypt-openssl-x509-perl?arch=source&distro=xenial

Affected ranges

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

Affected versions

1.*
1.8.6-1
1.8.6-1build1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1.8.6-1build1",
            "binary_name": "libcrypt-openssl-x509-perl"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-58102.json"
Ubuntu:18.04:LTS
libcrypt-openssl-x509-perl

Package

Name
libcrypt-openssl-x509-perl
Purl
pkg:deb/ubuntu/libcrypt-openssl-x509-perl?arch=source&distro=bionic

Affected ranges

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

Affected versions

1.*
1.8.7-3build1
1.8.8-1
1.8.8-1build1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1.8.8-1build1",
            "binary_name": "libcrypt-openssl-x509-perl"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-58102.json"
Ubuntu:20.04:LTS
libcrypt-openssl-x509-perl

Package

Name
libcrypt-openssl-x509-perl
Purl
pkg:deb/ubuntu/libcrypt-openssl-x509-perl?arch=source&distro=focal

Affected ranges

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

Affected versions

1.*
1.8.12-1
1.8.12-1build1
1.8.13-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1.8.13-1",
            "binary_name": "libcrypt-openssl-x509-perl"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-58102.json"
Ubuntu:22.04:LTS
libcrypt-openssl-x509-perl

Package

Name
libcrypt-openssl-x509-perl
Purl
pkg:deb/ubuntu/libcrypt-openssl-x509-perl?arch=source&distro=jammy

Affected ranges

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

Affected versions

1.*
1.9.02-1
1.9.10-1
1.9.10-1build1
1.9.12-1
1.9.12-1build1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1.9.12-1build1",
            "binary_name": "libcrypt-openssl-x509-perl"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-58102.json"
Ubuntu:24.04:LTS
libcrypt-openssl-x509-perl

Package

Name
libcrypt-openssl-x509-perl
Purl
pkg:deb/ubuntu/libcrypt-openssl-x509-perl?arch=source&distro=noble

Affected ranges

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

Affected versions

1.*
1.9.14-2
1.9.15-1
1.9.15-1build1
1.9.15-1build3
1.9.15-1build4

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1.9.15-1build4",
            "binary_name": "libcrypt-openssl-x509-perl"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-58102.json"
Ubuntu:26.04:LTS
libcrypt-openssl-x509-perl

Package

Name
libcrypt-openssl-x509-perl
Purl
pkg:deb/ubuntu/libcrypt-openssl-x509-perl?arch=source&distro=resolute

Affected ranges

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

Affected versions

2.*
2.0.1-1build1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "2.0.1-1build1",
            "binary_name": "libcrypt-openssl-x509-perl"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-58102.json"