UBUNTU-CVE-2026-42046

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Source
https://ubuntu.com/security/CVE-2026-42046
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-42046.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-42046
Upstream
  • CVE-2026-42046
Downstream
Related
Published
2026-05-11T22:22:00Z
Modified
2026-05-27T14:00:05.943514751Z
Severity
  • 7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

libcaca is a colour ASCII art library. In 0.99.beta20 and earlier, an integer overflow vulnerability in libcaca's canvas import functionality allows an attacker to cause a controlled heap out-of-bounds write (heap overflow) by supplying a crafted file in the "caca" format. Depending on the build configuration and memory allocator, this may lead to memory corruption or remote code execution. This is the same vulnerability as CVE-2021-3410 but the fix at that time was not fully correct. Commit fb77acff9ba6bb01d53940da34fb10f20b156a23 fixes this vulnerability.

References

Affected packages

Ubuntu:22.04:LTS
libcaca

Package

Name
libcaca
Purl
pkg:deb/ubuntu/libcaca?arch=source&distro=jammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
0.99.beta19-2.2ubuntu4.2

Affected versions

0.*
0.99.beta19-2.2ubuntu2
0.99.beta19-2.2ubuntu3
0.99.beta19-2.2ubuntu4
0.99.beta19-2.2ubuntu4.1

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_version": "0.99.beta19-2.2ubuntu4.2",
            "binary_name": "caca-utils"
        },
        {
            "binary_version": "0.99.beta19-2.2ubuntu4.2",
            "binary_name": "libcaca0"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-42046.json"
Ubuntu:24.04:LTS
libcaca

Package

Name
libcaca
Purl
pkg:deb/ubuntu/libcaca?arch=source&distro=noble

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
0.99.beta20-4ubuntu0.2

Affected versions

0.*
0.99.beta20-3build1
0.99.beta20-4
0.99.beta20-4build1
0.99.beta20-4build2
0.99.beta20-4ubuntu0.1

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_version": "0.99.beta20-4ubuntu0.2",
            "binary_name": "caca-utils"
        },
        {
            "binary_version": "0.99.beta20-4ubuntu0.2",
            "binary_name": "libcaca0"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-42046.json"
Ubuntu:25.10
libcaca

Package

Name
libcaca
Purl
pkg:deb/ubuntu/libcaca?arch=source&distro=questing

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
0.99.beta20-5ubuntu0.25.10.2

Affected versions

0.*
0.99.beta20-5
0.99.beta20-5ubuntu0.25.10.1

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_version": "0.99.beta20-5ubuntu0.25.10.2",
            "binary_name": "caca-utils"
        },
        {
            "binary_version": "0.99.beta20-5ubuntu0.25.10.2",
            "binary_name": "libcaca0"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-42046.json"
Ubuntu:26.04:LTS
libcaca

Package

Name
libcaca
Purl
pkg:deb/ubuntu/libcaca?arch=source&distro=resolute

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
0.99.beta20-6ubuntu2.1

Affected versions

0.*
0.99.beta20-5
0.99.beta20-6
0.99.beta20-6ubuntu1
0.99.beta20-6ubuntu2

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_version": "0.99.beta20-6ubuntu2.1",
            "binary_name": "caca-utils"
        },
        {
            "binary_version": "0.99.beta20-6ubuntu2.1",
            "binary_name": "libcaca0"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-42046.json"
Ubuntu:Pro:14.04:LTS
libcaca

Package

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

Affected ranges

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

Affected versions

0.*
0.99.beta18-1ubuntu2
0.99.beta18-1ubuntu3
0.99.beta18-1ubuntu4
0.99.beta18-1ubuntu5
0.99.beta18-1ubuntu5.1
0.99.beta18-1ubuntu5.1+esm1
0.99.beta18-1ubuntu5.1+esm2
0.99.beta18-1ubuntu5.1+esm3

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "0.99.beta18-1ubuntu5.1+esm3",
            "binary_name": "caca-utils"
        },
        {
            "binary_version": "0.99.beta18-1ubuntu5.1+esm3",
            "binary_name": "libcaca0"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-42046.json"
Ubuntu:Pro:16.04:LTS
libcaca

Package

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

Affected ranges

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

Affected versions

0.*
0.99.beta19-2build2~gcc5.1
0.99.beta19-2build2~gcc5.2
0.99.beta19-2ubuntu0.16.04.1
0.99.beta19-2ubuntu0.16.04.2
0.99.beta19-2ubuntu0.16.04.2+esm1
0.99.beta19-2ubuntu0.16.04.2+esm2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "0.99.beta19-2ubuntu0.16.04.2+esm2",
            "binary_name": "caca-utils"
        },
        {
            "binary_version": "0.99.beta19-2ubuntu0.16.04.2+esm2",
            "binary_name": "libcaca0"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-42046.json"
Ubuntu:Pro:18.04:LTS
libcaca

Package

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

Affected ranges

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

Affected versions

0.*
0.99.beta19-2build2~gcc5.2
0.99.beta19-2build2~gcc5.3
0.99.beta19-2ubuntu0.18.04.1
0.99.beta19-2ubuntu0.18.04.2
0.99.beta19-2ubuntu0.18.04.3
0.99.beta19-2ubuntu0.18.04.3+esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "0.99.beta19-2ubuntu0.18.04.3+esm1",
            "binary_name": "caca-utils"
        },
        {
            "binary_version": "0.99.beta19-2ubuntu0.18.04.3+esm1",
            "binary_name": "libcaca0"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-42046.json"
Ubuntu:Pro:20.04:LTS
libcaca

Package

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

Affected ranges

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

Affected versions

0.*
0.99.beta19-2.1
0.99.beta19-2.1ubuntu1
0.99.beta19-2.1ubuntu1.20.04.1
0.99.beta19-2.1ubuntu1.20.04.2
0.99.beta19-2.1ubuntu1.20.04.2+esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "0.99.beta19-2.1ubuntu1.20.04.2+esm1",
            "binary_name": "caca-utils"
        },
        {
            "binary_version": "0.99.beta19-2.1ubuntu1.20.04.2+esm1",
            "binary_name": "libcaca0"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-42046.json"