UBUNTU-CVE-2026-39314

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Source
https://ubuntu.com/security/CVE-2026-39314
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-39314.json
JSON Data
https://api.test.osv.dev/v1/vulns/UBUNTU-CVE-2026-39314
Upstream
Published
2026-04-07T17:16:00Z
Modified
2026-05-28T06:45:07.907960303Z
Severity
  • 4.0 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L CVSS Calculator
  • 6.2 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

OpenPrinting CUPS is an open source printing system for Linux and other Unix-like operating systems. In versions 2.4.16 and prior, an integer underflow vulnerability in ppdCreateFromIPP() (cups/ppd-cache.c) allows any unprivileged local user to crash the cupsd root process by supplying a negative job-password-supported IPP attribute. The bounds check only caps the upper bound, so a negative value passes validation, is cast to sizet (wrapping to ~2^64), and is used as the length argument to memset() on a 33-byte stack buffer. This causes an immediate SIGSEGV in the cupsd root process. Combined with systemd's Restart=on-failure, an attacker can repeat the crash for sustained denial of service.

References

Affected packages

Ubuntu:22.04:LTS
cups

Package

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

Affected ranges

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

Affected versions

2.*
2.3.3op2-7ubuntu2
2.4.1op1-1ubuntu1
2.4.1op1-1ubuntu2
2.4.1op1-1ubuntu3
2.4.1op1-1ubuntu4
2.4.1op1-1ubuntu4.1
2.4.1op1-1ubuntu4.2
2.4.1op1-1ubuntu4.4
2.4.1op1-1ubuntu4.6
2.4.1op1-1ubuntu4.7
2.4.1op1-1ubuntu4.8
2.4.1op1-1ubuntu4.9
2.4.1op1-1ubuntu4.10
2.4.1op1-1ubuntu4.11
2.4.1op1-1ubuntu4.12
2.4.1op1-1ubuntu4.15
2.4.1op1-1ubuntu4.16

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "cups",
            "binary_version": "2.4.1op1-1ubuntu4.16"
        },
        {
            "binary_name": "cups-bsd",
            "binary_version": "2.4.1op1-1ubuntu4.16"
        },
        {
            "binary_name": "cups-client",
            "binary_version": "2.4.1op1-1ubuntu4.16"
        },
        {
            "binary_name": "cups-common",
            "binary_version": "2.4.1op1-1ubuntu4.16"
        },
        {
            "binary_name": "cups-core-drivers",
            "binary_version": "2.4.1op1-1ubuntu4.16"
        },
        {
            "binary_name": "cups-daemon",
            "binary_version": "2.4.1op1-1ubuntu4.16"
        },
        {
            "binary_name": "cups-ipp-utils",
            "binary_version": "2.4.1op1-1ubuntu4.16"
        },
        {
            "binary_name": "cups-ppdc",
            "binary_version": "2.4.1op1-1ubuntu4.16"
        },
        {
            "binary_name": "cups-server-common",
            "binary_version": "2.4.1op1-1ubuntu4.16"
        },
        {
            "binary_name": "libcups2",
            "binary_version": "2.4.1op1-1ubuntu4.16"
        },
        {
            "binary_name": "libcupsimage2",
            "binary_version": "2.4.1op1-1ubuntu4.16"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-39314.json"
Ubuntu:24.04:LTS
cups

Package

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

Affected ranges

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

Affected versions

2.*
2.4.6-0ubuntu3
2.4.7-1.2ubuntu2
2.4.7-1.2ubuntu3
2.4.7-1.2ubuntu7
2.4.7-1.2ubuntu7.1
2.4.7-1.2ubuntu7.2
2.4.7-1.2ubuntu7.3
2.4.7-1.2ubuntu7.4
2.4.7-1.2ubuntu7.7
2.4.7-1.2ubuntu7.9

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "cups",
            "binary_version": "2.4.7-1.2ubuntu7.9"
        },
        {
            "binary_name": "cups-bsd",
            "binary_version": "2.4.7-1.2ubuntu7.9"
        },
        {
            "binary_name": "cups-client",
            "binary_version": "2.4.7-1.2ubuntu7.9"
        },
        {
            "binary_name": "cups-common",
            "binary_version": "2.4.7-1.2ubuntu7.9"
        },
        {
            "binary_name": "cups-core-drivers",
            "binary_version": "2.4.7-1.2ubuntu7.9"
        },
        {
            "binary_name": "cups-daemon",
            "binary_version": "2.4.7-1.2ubuntu7.9"
        },
        {
            "binary_name": "cups-ipp-utils",
            "binary_version": "2.4.7-1.2ubuntu7.9"
        },
        {
            "binary_name": "cups-ppdc",
            "binary_version": "2.4.7-1.2ubuntu7.9"
        },
        {
            "binary_name": "cups-server-common",
            "binary_version": "2.4.7-1.2ubuntu7.9"
        },
        {
            "binary_name": "libcups2t64",
            "binary_version": "2.4.7-1.2ubuntu7.9"
        },
        {
            "binary_name": "libcupsimage2t64",
            "binary_version": "2.4.7-1.2ubuntu7.9"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-39314.json"
Ubuntu:25.10
cups

Package

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

Affected ranges

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

Affected versions

2.*
2.4.12-0ubuntu1
2.4.12-0ubuntu2
2.4.12-0ubuntu3
2.4.12-0ubuntu3.3
2.4.12-0ubuntu3.5

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "cups",
            "binary_version": "2.4.12-0ubuntu3.5"
        },
        {
            "binary_name": "cups-bsd",
            "binary_version": "2.4.12-0ubuntu3.5"
        },
        {
            "binary_name": "cups-client",
            "binary_version": "2.4.12-0ubuntu3.5"
        },
        {
            "binary_name": "cups-common",
            "binary_version": "2.4.12-0ubuntu3.5"
        },
        {
            "binary_name": "cups-core-drivers",
            "binary_version": "2.4.12-0ubuntu3.5"
        },
        {
            "binary_name": "cups-daemon",
            "binary_version": "2.4.12-0ubuntu3.5"
        },
        {
            "binary_name": "cups-ipp-utils",
            "binary_version": "2.4.12-0ubuntu3.5"
        },
        {
            "binary_name": "cups-ppdc",
            "binary_version": "2.4.12-0ubuntu3.5"
        },
        {
            "binary_name": "cups-server-common",
            "binary_version": "2.4.12-0ubuntu3.5"
        },
        {
            "binary_name": "libcups2t64",
            "binary_version": "2.4.12-0ubuntu3.5"
        },
        {
            "binary_name": "libcupsimage2t64",
            "binary_version": "2.4.12-0ubuntu3.5"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-39314.json"
Ubuntu:26.04:LTS
cups

Package

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

Affected ranges

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

Affected versions

2.*
2.4.12-0ubuntu3
2.4.12-0ubuntu5
2.4.16-1ubuntu1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "cups",
            "binary_version": "2.4.16-1ubuntu1"
        },
        {
            "binary_name": "cups-bsd",
            "binary_version": "2.4.16-1ubuntu1"
        },
        {
            "binary_name": "cups-client",
            "binary_version": "2.4.16-1ubuntu1"
        },
        {
            "binary_name": "cups-common",
            "binary_version": "2.4.16-1ubuntu1"
        },
        {
            "binary_name": "cups-core-drivers",
            "binary_version": "2.4.16-1ubuntu1"
        },
        {
            "binary_name": "cups-daemon",
            "binary_version": "2.4.16-1ubuntu1"
        },
        {
            "binary_name": "cups-ipp-utils",
            "binary_version": "2.4.16-1ubuntu1"
        },
        {
            "binary_name": "cups-ppdc",
            "binary_version": "2.4.16-1ubuntu1"
        },
        {
            "binary_name": "cups-server-common",
            "binary_version": "2.4.16-1ubuntu1"
        },
        {
            "binary_name": "libcups2t64",
            "binary_version": "2.4.16-1ubuntu1"
        },
        {
            "binary_name": "libcupsimage2t64",
            "binary_version": "2.4.16-1ubuntu1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-39314.json"
Ubuntu:Pro:18.04:LTS
cups

Package

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

Affected ranges

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

Affected versions

2.*
2.2.4-7ubuntu2
2.2.5-2
2.2.6-2
2.2.6-3
2.2.6-4
2.2.6-5
2.2.7-1ubuntu1
2.2.7-1ubuntu2
2.2.7-1ubuntu2.1
2.2.7-1ubuntu2.2
2.2.7-1ubuntu2.3
2.2.7-1ubuntu2.4
2.2.7-1ubuntu2.5
2.2.7-1ubuntu2.6
2.2.7-1ubuntu2.7
2.2.7-1ubuntu2.8
2.2.7-1ubuntu2.9
2.2.7-1ubuntu2.10
2.2.7-1ubuntu2.10+esm1
2.2.7-1ubuntu2.10+esm2
2.2.7-1ubuntu2.10+esm3
2.2.7-1ubuntu2.10+esm4
2.2.7-1ubuntu2.10+esm5
2.2.7-1ubuntu2.10+esm6
2.2.7-1ubuntu2.10+esm7
2.2.7-1ubuntu2.10+esm9
2.2.7-1ubuntu2.10+esm10

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "cups",
            "binary_version": "2.2.7-1ubuntu2.10+esm10"
        },
        {
            "binary_name": "cups-bsd",
            "binary_version": "2.2.7-1ubuntu2.10+esm10"
        },
        {
            "binary_name": "cups-client",
            "binary_version": "2.2.7-1ubuntu2.10+esm10"
        },
        {
            "binary_name": "cups-common",
            "binary_version": "2.2.7-1ubuntu2.10+esm10"
        },
        {
            "binary_name": "cups-core-drivers",
            "binary_version": "2.2.7-1ubuntu2.10+esm10"
        },
        {
            "binary_name": "cups-daemon",
            "binary_version": "2.2.7-1ubuntu2.10+esm10"
        },
        {
            "binary_name": "cups-ipp-utils",
            "binary_version": "2.2.7-1ubuntu2.10+esm10"
        },
        {
            "binary_name": "cups-ppdc",
            "binary_version": "2.2.7-1ubuntu2.10+esm10"
        },
        {
            "binary_name": "cups-server-common",
            "binary_version": "2.2.7-1ubuntu2.10+esm10"
        },
        {
            "binary_name": "libcups2",
            "binary_version": "2.2.7-1ubuntu2.10+esm10"
        },
        {
            "binary_name": "libcupscgi1",
            "binary_version": "2.2.7-1ubuntu2.10+esm10"
        },
        {
            "binary_name": "libcupsimage2",
            "binary_version": "2.2.7-1ubuntu2.10+esm10"
        },
        {
            "binary_name": "libcupsmime1",
            "binary_version": "2.2.7-1ubuntu2.10+esm10"
        },
        {
            "binary_name": "libcupsppdc1",
            "binary_version": "2.2.7-1ubuntu2.10+esm10"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-39314.json"
Ubuntu:Pro:20.04:LTS
cups

Package

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

Affected ranges

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

Affected versions

2.*
2.2.12-2ubuntu1
2.3.0-6
2.3.0-7
2.3.0-7ubuntu1
2.3.1-1ubuntu1
2.3.1-2
2.3.1-4
2.3.1-7
2.3.1-9ubuntu1
2.3.1-9ubuntu1.1
2.3.1-9ubuntu1.2
2.3.1-9ubuntu1.3
2.3.1-9ubuntu1.4
2.3.1-9ubuntu1.5
2.3.1-9ubuntu1.6
2.3.1-9ubuntu1.7
2.3.1-9ubuntu1.8
2.3.1-9ubuntu1.9
2.3.1-9ubuntu1.9+esm1
2.3.1-9ubuntu1.9+esm3
2.3.1-9ubuntu1.9+esm4

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "cups",
            "binary_version": "2.3.1-9ubuntu1.9+esm4"
        },
        {
            "binary_name": "cups-bsd",
            "binary_version": "2.3.1-9ubuntu1.9+esm4"
        },
        {
            "binary_name": "cups-client",
            "binary_version": "2.3.1-9ubuntu1.9+esm4"
        },
        {
            "binary_name": "cups-common",
            "binary_version": "2.3.1-9ubuntu1.9+esm4"
        },
        {
            "binary_name": "cups-core-drivers",
            "binary_version": "2.3.1-9ubuntu1.9+esm4"
        },
        {
            "binary_name": "cups-daemon",
            "binary_version": "2.3.1-9ubuntu1.9+esm4"
        },
        {
            "binary_name": "cups-ipp-utils",
            "binary_version": "2.3.1-9ubuntu1.9+esm4"
        },
        {
            "binary_name": "cups-ppdc",
            "binary_version": "2.3.1-9ubuntu1.9+esm4"
        },
        {
            "binary_name": "cups-server-common",
            "binary_version": "2.3.1-9ubuntu1.9+esm4"
        },
        {
            "binary_name": "libcups2",
            "binary_version": "2.3.1-9ubuntu1.9+esm4"
        },
        {
            "binary_name": "libcupsimage2",
            "binary_version": "2.3.1-9ubuntu1.9+esm4"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-39314.json"