UBUNTU-CVE-2026-12844

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Source
https://ubuntu.com/security/CVE-2026-12844
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-12844.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-12844
Upstream
Published
2026-06-25T16:16:00Z
Modified
2026-06-29T23:15:17Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

List::SomeUtils::XS versions before 0.59 for Perl have a heap buffer overflow in the pairwise function. pairwise() collects the values returned by the block into a heap buffer sized to the longer input array, then grows the buffer before each copy with a single quadrupling (alloc <<= 2) instead of a loop. A block call that returns more than four times the current allocation in one invocation outgrows that one quadrupling, and the copy writes past the end of the buffer. Any caller of pairwise() whose block returns, for a single pair, more than four times the longer input array's length writes past the buffer and corrupts the heap.

References

Affected packages

Ubuntu:20.04:LTS
liblist-someutils-xs-perl

Package

Name
liblist-someutils-xs-perl
Purl
pkg:deb/ubuntu/liblist-someutils-xs-perl?arch=source&distro=focal

Affected ranges

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

Affected versions

0.*
0.58-1
0.58-2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "liblist-someutils-xs-perl",
            "binary_version": "0.58-2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-12844.json"
Ubuntu:22.04:LTS
liblist-someutils-xs-perl

Package

Name
liblist-someutils-xs-perl
Purl
pkg:deb/ubuntu/liblist-someutils-xs-perl?arch=source&distro=jammy

Affected ranges

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

Affected versions

0.*
0.58-2build2
0.58-2build3

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "liblist-someutils-xs-perl",
            "binary_version": "0.58-2build3"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-12844.json"
Ubuntu:24.04:LTS
liblist-someutils-xs-perl

Package

Name
liblist-someutils-xs-perl
Purl
pkg:deb/ubuntu/liblist-someutils-xs-perl?arch=source&distro=noble

Affected ranges

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

Affected versions

0.*
0.58-3
0.58-3build2
0.58-3build3
0.58-3build4

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "liblist-someutils-xs-perl",
            "binary_version": "0.58-3build4"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-12844.json"
Ubuntu:25.10
liblist-someutils-xs-perl

Package

Name
liblist-someutils-xs-perl
Purl
pkg:deb/ubuntu/liblist-someutils-xs-perl?arch=source&distro=questing

Affected ranges

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

Affected versions

0.*
0.58-3build5

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "liblist-someutils-xs-perl",
            "binary_version": "0.58-3build5"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-12844.json"
Ubuntu:26.04:LTS
liblist-someutils-xs-perl

Package

Name
liblist-someutils-xs-perl
Purl
pkg:deb/ubuntu/liblist-someutils-xs-perl?arch=source&distro=resolute

Affected ranges

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

Affected versions

0.*
0.58-3build5

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "liblist-someutils-xs-perl",
            "binary_version": "0.58-3build5"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-12844.json"