UBUNTU-CVE-2026-73194

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Source
https://ubuntu.com/security/CVE-2026-73194
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-73194.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-73194
Upstream
Published
2026-08-17T00:00:00Z
Modified
2026-08-17T12:35:06.070817394Z
Severity
  • Ubuntu - medium
Summary
[none]
Details

DBI versions before 1.652 for Perl allow a heap out-of-bounds write via an unvalidated numeric placeholder that sets the binder counter in preparse. preparse reserves seven output bytes per input byte, the width of the longest ':p99999' expansion. The ':N' branch parses the number with atoi(src) and assigns it to the binder counter with no range check, so a statement containing ':2147483648' leaves the counter negative (-2147483648 with glibc, where atoi wraps). Each following '?' then expands through sprintf(start, ":p%d", idx++) to ':p-2147483648', 14 bytes with the terminating NUL where the buffer budgets 7. The placeholder limit added in 1.650 tests the counter against 99,999, which a negative counter passes. Any caller that preparses an untrusted statement into ':pN' style placeholders gets a heap out-of-bounds write that grows with the number of '?' marks following the poisoned placeholder. The '?' and '%s' return styles compare the parsed number against the expected sequence and error out, and are unaffected.

References

Affected packages

Ubuntu:22.04:LTS
libdbi-perl

Package

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

Affected ranges

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

Affected versions

1.*
1.643-3build2
1.643-3build3
1.643-3ubuntu0.1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libdbi-perl",
            "binary_version": "1.643-3ubuntu0.1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-73194.json"
Ubuntu:24.04:LTS
libdbi-perl

Package

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

Affected ranges

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

Affected versions

1.*
1.643-4
1.643-4build1
1.643-4build2
1.643-4build3
1.643-4ubuntu0.1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libdbi-perl",
            "binary_version": "1.643-4ubuntu0.1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-73194.json"
Ubuntu:26.04:LTS
libdbi-perl

Package

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

Affected ranges

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

Affected versions

1.*
1.647-1
1.647-1build1
1.647-1ubuntu0.26.04.1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libdbi-perl",
            "binary_version": "1.647-1ubuntu0.26.04.1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-73194.json"
Ubuntu:Pro:14.04:LTS
libdbi-perl

Package

Name
libdbi-perl
Purl
pkg:deb/ubuntu/libdbi-perl?arch=source&distro=esm-infra-legacy%2Ftrusty

Affected ranges

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

Affected versions

1.*
1.627-1
1.628-1
1.630-1
1.630-1ubuntu0.1~esm1
1.630-1ubuntu0.1~esm4
1.630-1ubuntu0.1~esm5
1.630-1ubuntu0.1~esm6

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libdbi-perl",
            "binary_version": "1.630-1ubuntu0.1~esm6"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-73194.json"
Ubuntu:Pro:16.04:LTS
libdbi-perl

Package

Name
libdbi-perl
Purl
pkg:deb/ubuntu/libdbi-perl?arch=source&distro=esm-infra-legacy%2Fxenial

Affected ranges

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

Affected versions

1.*
1.633-1
1.634-1
1.634-1build1
1.634-1ubuntu0.1
1.634-1ubuntu0.2
1.634-1ubuntu0.2+esm1
1.634-1ubuntu0.2+esm2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libdbi-perl",
            "binary_version": "1.634-1ubuntu0.2+esm2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-73194.json"
Ubuntu:Pro:18.04:LTS
libdbi-perl

Package

Name
libdbi-perl
Purl
pkg:deb/ubuntu/libdbi-perl?arch=source&distro=esm-infra%2Fbionic

Affected ranges

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

Affected versions

1.*
1.637-1
1.639-1
1.640-1
1.640-1ubuntu0.1
1.640-1ubuntu0.2
1.640-1ubuntu0.3
1.640-1ubuntu0.3+esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libdbi-perl",
            "binary_version": "1.640-1ubuntu0.3+esm1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-73194.json"
Ubuntu:Pro:20.04:LTS
libdbi-perl

Package

Name
libdbi-perl
Purl
pkg:deb/ubuntu/libdbi-perl?arch=source&distro=esm-infra%2Ffocal

Affected ranges

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

Affected versions

1.*
1.642-1
1.642-1build1
1.643-1
1.643-1ubuntu0.1
1.643-1ubuntu0.1+esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libdbi-perl",
            "binary_version": "1.643-1ubuntu0.1+esm1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-73194.json"