Vulnerability-Lookup

RHSA-2023:6596

Vulnerability from csaf_opensuse - Published: 2023-11-07 00:00 - Updated: 2026-09-20 11:32

Summary

security update for cups

Severity

Low

Notes

Title of the patch: security update for cups

Description of the patch: This security update provides a functional equivalent of RHSA-2023:6596. The original Red Hat(R) advisory is available from the Red Hat web site at https://access.redhat.com/errata/RHSA-2023:6596.

Patchnames: RHSA-2023:6596

CVE-2023-32324

5.9 (Medium)


                
                  CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

Recommended 10 products

Product	Version	Remediation
Unresolved product id: SUSE Liberty Linux 9:cups-1:2.3.3op2-21.el9.x86_64	—	Vendor Fix
Unresolved product id: SUSE Liberty Linux 9:cups-client-1:2.3.3op2-21.el9.x86_64	—	Vendor Fix
Unresolved product id: SUSE Liberty Linux 9:cups-devel-1:2.3.3op2-21.el9.i686	—	Vendor Fix
Unresolved product id: SUSE Liberty Linux 9:cups-devel-1:2.3.3op2-21.el9.x86_64	—	Vendor Fix
Unresolved product id: SUSE Liberty Linux 9:cups-filesystem-1:2.3.3op2-21.el9.noarch	—	Vendor Fix
Unresolved product id: SUSE Liberty Linux 9:cups-ipptool-1:2.3.3op2-21.el9.x86_64	—	Vendor Fix
Unresolved product id: SUSE Liberty Linux 9:cups-libs-1:2.3.3op2-21.el9.i686	—	Vendor Fix
Unresolved product id: SUSE Liberty Linux 9:cups-libs-1:2.3.3op2-21.el9.x86_64	—	Vendor Fix
Unresolved product id: SUSE Liberty Linux 9:cups-lpd-1:2.3.3op2-21.el9.x86_64	—	Vendor Fix
Unresolved product id: SUSE Liberty Linux 9:cups-printerapp-1:2.3.3op2-21.el9.x86_64	—	Vendor Fix

Threats

Impact moderate

CVE-2023-34241

7.1 (High)


                
                  CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

Affected products

Recommended 10 products, the same list as for CVE-2023-32324

Threats

Impact important

References

10 references

URL	Category
https://www.suse.com/support/security/rating/	external
https://ftp.suse.com/pub/projects/security/csaf/r…	self
https://www.suse.com/security/cve/CVE-2023-32324/	self
https://www.suse.com/security/cve/CVE-2023-34241/	self
https://www.suse.com/security/cve/CVE-2023-32324	external
https://bugzilla.suse.com/1211643	external
https://www.suse.com/security/cve/CVE-2023-34241	external
https://bugzilla.suse.com/1212230	external
https://bugzilla.suse.com/1217457	external
https://bugzilla.suse.com/1218317	external

JSON

To clipboard

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  "vulnerabilities": [
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      ],
      "notes": [
        {
          "category": "general",
          "text": "OpenPrinting CUPS is an open source printing system. In versions 2.4.2 and prior, a heap buffer overflow vulnerability would allow a remote attacker to launch a denial of service (DoS) attack. A buffer overflow vulnerability in the function `format_log_line` could allow remote attackers to cause a DoS on the affected system. Exploitation of the vulnerability can be triggered when the configuration file `cupsd.conf` sets the value of `loglevel `to `DEBUG`. No known patches or workarounds exist at time of publication.",
          "title": "CVE description"
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      "remediations": [
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          "category": "vendor_fix",
          "details": "To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or \"zypper patch\".\n",
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            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
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          "date": "2023-11-07T00:00:00Z",
          "details": "moderate"
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      "title": "CVE-2023-32324"
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      "ids": [
        {
          "system_name": "SUSE CVE Page",
          "text": "https://www.suse.com/security/cve/CVE-2023-34241"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "OpenPrinting CUPS is a standards-based, open source printing system for Linux and other Unix-like operating systems. Starting in version 2.0.0 and prior to version 2.4.6, CUPS logs data of free memory to the logging service AFTER the connection has been closed, when it should have logged the data right before. This is a use-after-free bug that impacts the entire cupsd process.\n\nThe exact cause of this issue is the function `httpClose(con-\u003ehttp)` being called in `scheduler/client.c`. The problem is that httpClose always, provided its argument is not null, frees the pointer at the end of the call, only for cupsdLogClient to pass the pointer to httpGetHostname. This issue happens in function `cupsdAcceptClient` if LogLevel is warn or higher and in two scenarios: there is a double-lookup for the IP Address (HostNameLookups Double is set in `cupsd.conf`) which fails to resolve, or if CUPS is compiled with TCP wrappers and the connection is refused by rules from `/etc/hosts.allow` and `/etc/hosts.deny`.\n\nVersion 2.4.6 has a patch for this issue.",
          "title": "CVE description"
        }
      ],
      "product_status": {
        "recommended": [
          "SUSE Liberty Linux 9:cups-1:2.3.3op2-21.el9.x86_64",
          "SUSE Liberty Linux 9:cups-client-1:2.3.3op2-21.el9.x86_64",
          "SUSE Liberty Linux 9:cups-devel-1:2.3.3op2-21.el9.i686",
          "SUSE Liberty Linux 9:cups-devel-1:2.3.3op2-21.el9.x86_64",
          "SUSE Liberty Linux 9:cups-filesystem-1:2.3.3op2-21.el9.noarch",
          "SUSE Liberty Linux 9:cups-ipptool-1:2.3.3op2-21.el9.x86_64",
          "SUSE Liberty Linux 9:cups-libs-1:2.3.3op2-21.el9.i686",
          "SUSE Liberty Linux 9:cups-libs-1:2.3.3op2-21.el9.x86_64",
          "SUSE Liberty Linux 9:cups-lpd-1:2.3.3op2-21.el9.x86_64",
          "SUSE Liberty Linux 9:cups-printerapp-1:2.3.3op2-21.el9.x86_64"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "CVE-2023-34241",
          "url": "https://www.suse.com/security/cve/CVE-2023-34241"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1212230 for CVE-2023-34241",
          "url": "https://bugzilla.suse.com/1212230"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1217457 for CVE-2023-34241",
          "url": "https://bugzilla.suse.com/1217457"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1218317 for CVE-2023-34241",
          "url": "https://bugzilla.suse.com/1218317"
        }
      ],
      "remediations": [
        {
          "category": "vendor_fix",
          "details": "To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or \"zypper patch\".\n",
          "product_ids": [
            "SUSE Liberty Linux 9:cups-1:2.3.3op2-21.el9.x86_64",
            "SUSE Liberty Linux 9:cups-client-1:2.3.3op2-21.el9.x86_64",
            "SUSE Liberty Linux 9:cups-devel-1:2.3.3op2-21.el9.i686",
            "SUSE Liberty Linux 9:cups-devel-1:2.3.3op2-21.el9.x86_64",
            "SUSE Liberty Linux 9:cups-filesystem-1:2.3.3op2-21.el9.noarch",
            "SUSE Liberty Linux 9:cups-ipptool-1:2.3.3op2-21.el9.x86_64",
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            "SUSE Liberty Linux 9:cups-libs-1:2.3.3op2-21.el9.x86_64",
            "SUSE Liberty Linux 9:cups-lpd-1:2.3.3op2-21.el9.x86_64",
            "SUSE Liberty Linux 9:cups-printerapp-1:2.3.3op2-21.el9.x86_64"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 7.1,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H",
            "version": "3.1"
          },
          "products": [
            "SUSE Liberty Linux 9:cups-1:2.3.3op2-21.el9.x86_64",
            "SUSE Liberty Linux 9:cups-client-1:2.3.3op2-21.el9.x86_64",
            "SUSE Liberty Linux 9:cups-devel-1:2.3.3op2-21.el9.i686",
            "SUSE Liberty Linux 9:cups-devel-1:2.3.3op2-21.el9.x86_64",
            "SUSE Liberty Linux 9:cups-filesystem-1:2.3.3op2-21.el9.noarch",
            "SUSE Liberty Linux 9:cups-ipptool-1:2.3.3op2-21.el9.x86_64",
            "SUSE Liberty Linux 9:cups-libs-1:2.3.3op2-21.el9.i686",
            "SUSE Liberty Linux 9:cups-libs-1:2.3.3op2-21.el9.x86_64",
            "SUSE Liberty Linux 9:cups-lpd-1:2.3.3op2-21.el9.x86_64",
            "SUSE Liberty Linux 9:cups-printerapp-1:2.3.3op2-21.el9.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "date": "2023-11-07T00:00:00Z",
          "details": "important"
        }
      ],
      "title": "CVE-2023-34241"
    }
  ]
}

CVE-2023-32324 (GCVE-0-2023-32324)

Vulnerability from cvelistv5 – Published: 2023-06-01 16:04 – Updated: 2025-02-13 16:50

Title

OpenPrinting CUPS vulnerable to heap buffer overflow

Summary

OpenPrinting CUPS is an open source printing system. In versions 2.4.2 and prior, a heap buffer overflow vulnerability would allow a remote attacker to launch a denial of service (DoS) attack. A buffer overflow vulnerability in the function `format_log_line` could allow remote attackers to cause a DoS on the affected system. Exploitation of the vulnerability can be triggered when the configuration file `cupsd.conf` sets the value of `loglevel `to `DEBUG`. No known patches or workarounds exist at time of publication.

Severity

7.5 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-01-08 21:43 UTC

CWE

CWE-122 - Heap-based Buffer Overflow
CWE-787 - Out-of-bounds Write

Assigner

GitHub_M mitre root Scorecard

References

2 references

URL	Tags
https://github.com/OpenPrinting/cups/security/adv…	x_refsource_CONFIRM
https://lists.debian.org/debian-lts-announce/2023…

Impacted products

1 product

Vendor	Product	Version
OpenPrinting	cups	Affected: <= 2.4.2

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-02T15:10:24.898Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
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        "references": [
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            "name": "https://github.com/OpenPrinting/cups/security/advisories/GHSA-cxc6-w2g7-69p7",
            "tags": [
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              "x_transferred"
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            "url": "https://github.com/OpenPrinting/cups/security/advisories/GHSA-cxc6-w2g7-69p7"
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                    "Automatable": "yes"
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                    "Technical Impact": "partial"
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      ],
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            "attackComplexity": "LOW",
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            "confidentialityImpact": "NONE",
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            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
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        "discovery": "UNKNOWN"
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      "title": "OpenPrinting CUPS vulnerable to heap buffer overflow"
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CVE-2023-34241 (GCVE-0-2023-34241)

Vulnerability from cvelistv5 – Published: 2023-06-22 22:39 – Updated: 2025-02-13 16:55

Title

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

Summary

OpenPrinting CUPS is a standards-based, open source printing system for Linux and other Unix-like operating systems. Starting in version 2.0.0 and prior to version 2.4.6, CUPS logs data of free memory to the logging service AFTER the connection has been closed, when it should have logged the data right before. This is a use-after-free bug that impacts the entire cupsd process. The exact cause of this issue is the function `httpClose(con->http)` being called in `scheduler/client.c`. The problem is that httpClose always, provided its argument is not null, frees the pointer at the end of the call, only for cupsdLogClient to pass the pointer to httpGetHostname. This issue happens in function `cupsdAcceptClient` if LogLevel is warn or higher and in two scenarios: there is a double-lookup for the IP Address (HostNameLookups Double is set in `cupsd.conf`) which fails to resolve, or if CUPS is compiled with TCP wrappers and the connection is refused by rules from `/etc/hosts.allow` and `/etc/hosts.deny`. Version 2.4.6 has a patch for this issue.

Severity

5.3 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

SSVC

Exploitation: poc Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-12-10 20:49 UTC

CWE

CWE-416 - Use After Free

Assigner

GitHub_M mitre root Scorecard

References

11 references

URL	Tags
https://github.com/OpenPrinting/cups/security/adv…	x_refsource_CONFIRM
https://github.com/OpenPrinting/cups/commit/98099…	x_refsource_MISC
https://github.com/OpenPrinting/cups/releases/tag…	x_refsource_MISC
http://www.openwall.com/lists/oss-security/2023/0…
http://www.openwall.com/lists/oss-security/2023/06/26/1
https://lists.fedoraproject.org/archives/list/pac…
https://lists.debian.org/debian-lts-announce/2023…
https://lists.fedoraproject.org/archives/list/pac…
https://support.apple.com/kb/HT213843
https://support.apple.com/kb/HT213844
https://support.apple.com/kb/HT213845

Impacted products

1 product

Vendor	Product	Version
OpenPrinting	cups	Affected: >= 2.0.0, < 2.4.6

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
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            "url": "http://www.openwall.com/lists/oss-security/2023/06/26/1"
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            "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/TBIYKDS3UG3W4Z7YOHTR2AWFNBRYPNYY/"
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            "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/7I7DWGYGEMBNLZF5UQBMF3SONR37YUBN/"
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          "vendor": "OpenPrinting",
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        },
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        "discovery": "UNKNOWN"
      },
      "title": "CUPS vulnerable to use-after-free in cupsdAcceptClient()"
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    "datePublished": "2023-06-22T22:39:32.400Z",
    "dateReserved": "2023-05-31T13:51:51.171Z",
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    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
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}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

RHSA-2023:6596

CVE-2023-32324 (GCVE-0-2023-32324)

CVE-2023-34241 (GCVE-0-2023-34241)

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Related by attack behaviour