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01 Record

CVE-2023-34241

CUPS vulnerable to use-after-free in cupsdAcceptClient()

MediumPUBLISHEDCNA: GitHub_M
CNA base score5.3 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
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02 Description

CUPS vulnerable to use-after-free in cupsdAcceptClient()

03 Exploitation and scoring

Exploitation
Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.
SSVC decision
  • ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
  • AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
  • Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.
EPSS probability
1.38% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 71.9% of scored records. A rank, not a probability.
NVD base score
7.1 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
NVD analysis status
Modified. NVD last modified this record on 2026-06-17.
Red Hat severity
Moderate. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2023-06-22 22:39Z3 YR AGO
Last updated
2025-02-13 16:55Z1 YR AGO
Reserved
2023-05-31
Assigning CNA
GitHub_M
Record state
PUBLISHED
Severity
Medium (CVSS 5.3)
CNA CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Weaknesses
Data version
5.1
Document digest
c9582b950889889a1815b8f61fd47ff01f4755e6f48bd5929b266fa78dbbdb2a

05 Affected products

VendorProductVersionsPlatforms
OpenPrintingcups>= 2.0.0, < 2.4.6—

06 References

07 Fixed in

AlmaLinux 8

  • cups
    Fixed in 1:2.2.6-54.el8_9
  • cups-client
    Fixed in 1:2.2.6-54.el8_9
  • cups-devel
    Fixed in 1:2.2.6-54.el8_9
  • cups-filesystem
    Fixed in 1:2.2.6-54.el8_9
  • cups-ipptool
    Fixed in 1:2.2.6-54.el8_9
  • cups-libs
    Fixed in 1:2.2.6-54.el8_9
  • cups-lpd
    Fixed in 1:2.2.6-54.el8_9

Source: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.

AlmaLinux 9

  • cups
    Fixed in 1:2.3.3op2-21.el9
  • cups-client
    Fixed in 1:2.3.3op2-21.el9
  • cups-devel
    Fixed in 1:2.3.3op2-21.el9
  • cups-filesystem
    Fixed in 1:2.3.3op2-21.el9
  • cups-ipptool
    Fixed in 1:2.3.3op2-21.el9
  • cups-libs
    Fixed in 1:2.3.3op2-21.el9
  • cups-lpd
    Fixed in 1:2.3.3op2-21.el9
  • cups-printerapp
    Fixed in 1:2.3.3op2-21.el9

Source: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.

CloudLinux 8

  • cups
    Fixed in 1:2.2.6-54.el8_9
  • cups-client
    Fixed in 1:2.2.6-54.el8_9
  • cups-devel
    Fixed in 1:2.2.6-54.el8_9
  • cups-filesystem
    Fixed in 1:2.2.6-54.el8_9
  • cups-ipptool
    Fixed in 1:2.2.6-54.el8_9
  • cups-libs
    Fixed in 1:2.2.6-54.el8_9
  • cups-lpd
    Fixed in 1:2.2.6-54.el8_9

Derived from AlmaLinux 8. Partial coverage: only packages taken from AlmaLinux 8 are listed.

Source: CloudLinux errata, CloudLinux Inc. Derived from: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.

CloudLinux 9

  • cups
    Fixed in 1:2.3.3op2-21.el9
  • cups-client
    Fixed in 1:2.3.3op2-21.el9
  • cups-devel
    Fixed in 1:2.3.3op2-21.el9
  • cups-filesystem
    Fixed in 1:2.3.3op2-21.el9
  • cups-ipptool
    Fixed in 1:2.3.3op2-21.el9
  • cups-libs
    Fixed in 1:2.3.3op2-21.el9
  • cups-lpd
    Fixed in 1:2.3.3op2-21.el9
  • cups-printerapp
    Fixed in 1:2.3.3op2-21.el9

Derived from AlmaLinux 9. Partial coverage: only packages taken from AlmaLinux 9 are listed.

Source: CloudLinux errata, CloudLinux Inc. Derived from: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.

Debian 12

  • cups
    Fixed in 2.4.2-3+deb12u1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 13

  • cups
    Fixed in 2.4.2-5

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 14

  • cups
    Fixed in 2.4.2-5

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 20.04 LTS

  • cups
    Fixed in 2.3.1-9ubuntu1.4

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 22.04 LTS

  • cups
    Fixed in 2.4.1op1-1ubuntu4.4

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu Pro 16.04 LTS

  • cups
    Fixed in 2.1.3-4ubuntu0.11+esm3
    Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu Pro 18.04 LTS

  • cups
    Fixed in 2.2.7-1ubuntu2.10+esm1
    Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.