UBUNTU-CVE-2026-107794

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Source
https://ubuntu.com/security/CVE-2026-107794
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-107794.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-107794
Upstream
Published
2026-10-12T00:00:00Z
Modified
2026-10-12T14:20:38Z
Severity
  • Ubuntu - medium
Summary
[none]
Details

ExtUtils::Typemaps::STL::List versions before 1.07 for Perl allocate a 32 GiB array on an empty list. The OUTPUT typemaps call av_extend( av, len-1 ). On an empty list, this undeflows, and av_extend will allocate an array with 2^32 slots, leading to memory exhaustion. Note that a similar issue was fixed in ExtUtils::Typemaps::STL::Vector version 1.05.

References

Affected packages

Ubuntu:16.04:LTS
libextutils-typemaps-default-perl

Package

Name
libextutils-typemaps-default-perl
Purl
pkg:deb/ubuntu/libextutils-typemaps-default-perl?arch=source&distro=xenial

Affected ranges

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

Affected versions

1.*
1.05-2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libextutils-typemaps-default-perl",
            "binary_version": "1.05-2"
        }
    ],
    "priority_reason": "Denial of service via memory exhaustion when processing an empty list in Perl XS typemaps; requires untrusted input to a Perl application using this module."
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-107794.json"
Ubuntu:18.04:LTS
libextutils-typemaps-default-perl

Package

Name
libextutils-typemaps-default-perl
Purl
pkg:deb/ubuntu/libextutils-typemaps-default-perl?arch=source&distro=bionic

Affected ranges

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

Affected versions

1.*
1.05-2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libextutils-typemaps-default-perl",
            "binary_version": "1.05-2"
        }
    ],
    "priority_reason": "Denial of service via memory exhaustion when processing an empty list in Perl XS typemaps; requires untrusted input to a Perl application using this module."
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-107794.json"
Ubuntu:20.04:LTS
libextutils-typemaps-default-perl

Package

Name
libextutils-typemaps-default-perl
Purl
pkg:deb/ubuntu/libextutils-typemaps-default-perl?arch=source&distro=focal

Affected ranges

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

Affected versions

1.*
1.05-2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libextutils-typemaps-default-perl",
            "binary_version": "1.05-2"
        }
    ],
    "priority_reason": "Denial of service via memory exhaustion when processing an empty list in Perl XS typemaps; requires untrusted input to a Perl application using this module."
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-107794.json"
Ubuntu:22.04:LTS
libextutils-typemaps-default-perl

Package

Name
libextutils-typemaps-default-perl
Purl
pkg:deb/ubuntu/libextutils-typemaps-default-perl?arch=source&distro=jammy

Affected ranges

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

Affected versions

1.*
1.05-2.1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libextutils-typemaps-default-perl",
            "binary_version": "1.05-2.1"
        }
    ],
    "priority_reason": "Denial of service via memory exhaustion when processing an empty list in Perl XS typemaps; requires untrusted input to a Perl application using this module."
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-107794.json"
Ubuntu:24.04:LTS
libextutils-typemaps-default-perl

Package

Name
libextutils-typemaps-default-perl
Purl
pkg:deb/ubuntu/libextutils-typemaps-default-perl?arch=source&distro=noble

Affected ranges

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

Affected versions

1.*
1.05-5

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libextutils-typemaps-default-perl",
            "binary_version": "1.05-5"
        }
    ],
    "priority_reason": "Denial of service via memory exhaustion when processing an empty list in Perl XS typemaps; requires untrusted input to a Perl application using this module."
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-107794.json"
Ubuntu:26.04:LTS
libextutils-typemaps-default-perl

Package

Name
libextutils-typemaps-default-perl
Purl
pkg:deb/ubuntu/libextutils-typemaps-default-perl?arch=source&distro=resolute

Affected ranges

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

Affected versions

1.*
1.05-5

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libextutils-typemaps-default-perl",
            "binary_version": "1.05-5"
        }
    ],
    "priority_reason": "Denial of service via memory exhaustion when processing an empty list in Perl XS typemaps; requires untrusted input to a Perl application using this module."
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-107794.json"