Vulnerability-Lookup

OPENSUSE-SU-2026:21818-1

Vulnerability from csaf_opensuse - Published: 2026-09-09 13:16 - Updated: 2026-09-16 21:48

Summary

Security update for libcupsfilters

Severity

Moderate

Notes

Title of the patch: Security update for libcupsfilters

Description of the patch: This update for libcupsfilters fixes the following issues: - CVE-2026-64611: infinite-loop CPU-exhaustion DoS in cfIEEE1284NormalizeMakeModel on empty MDL field (bsc#1273145). - CVE-2026-64612: malformed PNG aborts CUPS image filter process (bsc#1273146).

Patchnames: openSUSE-Leap-16.0-1646

CVE-2026-64611

6.5 (Medium)


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

Affected products

Recommended 12 products

Product	Version	Remediation
Unresolved product id: openSUSE Leap 16.0:libcupsfilters-2.1.1-160000.3.1.aarch64	—	Vendor Fix
Unresolved product id: openSUSE Leap 16.0:libcupsfilters-2.1.1-160000.3.1.ppc64le	—	Vendor Fix
Unresolved product id: openSUSE Leap 16.0:libcupsfilters-2.1.1-160000.3.1.s390x	—	Vendor Fix
Unresolved product id: openSUSE Leap 16.0:libcupsfilters-2.1.1-160000.3.1.x86_64	—	Vendor Fix
Unresolved product id: openSUSE Leap 16.0:libcupsfilters-devel-2.1.1-160000.3.1.aarch64	—	Vendor Fix
Unresolved product id: openSUSE Leap 16.0:libcupsfilters-devel-2.1.1-160000.3.1.ppc64le	—	Vendor Fix
Unresolved product id: openSUSE Leap 16.0:libcupsfilters-devel-2.1.1-160000.3.1.s390x	—	Vendor Fix
Unresolved product id: openSUSE Leap 16.0:libcupsfilters-devel-2.1.1-160000.3.1.x86_64	—	Vendor Fix
Unresolved product id: openSUSE Leap 16.0:libcupsfilters2-2.1.1-160000.3.1.aarch64	—	Vendor Fix
Unresolved product id: openSUSE Leap 16.0:libcupsfilters2-2.1.1-160000.3.1.ppc64le	—	Vendor Fix
Unresolved product id: openSUSE Leap 16.0:libcupsfilters2-2.1.1-160000.3.1.s390x	—	Vendor Fix
Unresolved product id: openSUSE Leap 16.0:libcupsfilters2-2.1.1-160000.3.1.x86_64	—	Vendor Fix

Threats

Impact moderate

CVE-2026-64612

5.3 (Medium)


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

Affected products

Recommended 12 products, the same list as for CVE-2026-64611

Threats

Impact moderate

References

10 references

URL	Category
https://www.suse.com/support/security/rating/	external
https://ftp.suse.com/pub/projects/security/csaf/o…	self
https://bugzilla.suse.com/1273145	self
https://bugzilla.suse.com/1273146	self
https://www.suse.com/security/cve/CVE-2026-64611/	self
https://www.suse.com/security/cve/CVE-2026-64612/	self
https://www.suse.com/security/cve/CVE-2026-64611	external
https://bugzilla.suse.com/1273145	external
https://www.suse.com/security/cve/CVE-2026-64612	external
https://bugzilla.suse.com/1273146	external

JSON

To clipboard

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  "vulnerabilities": [
    {
      "cve": "CVE-2026-64611",
      "ids": [
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          "text": "https://www.suse.com/security/cve/CVE-2026-64611"
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          "category": "general",
          "text": "A flaw was found in libcupsfilters. The cfIEEE1284NormalizeMakeModel() function enters an infinite loop when processing a printer-advertised IEEE-1284 device ID with an empty model field, causing sustained CPU consumption. A network-adjacent attacker could exploit this by broadcasting a specially crafted printer advertisement, leading to denial of service.",
          "title": "CVE description"
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CVE-2026-64611 (GCVE-0-2026-64611)

Vulnerability from cvelistv5 – Published: 2026-07-23 10:46 – Updated: 2026-08-19 13:34

Title

Libcupsfilters: cups-filters: libcupsfilters: cpu exhaustion via infinite loop in cfieee1284normalizemakemodel()

Summary

A flaw was found in libcupsfilters. The cfIEEE1284NormalizeMakeModel() function enters an infinite loop when processing a printer-advertised IEEE-1284 device ID with an empty model field, causing sustained CPU consumption. A network-adjacent attacker could exploit this by broadcasting a specially crafted printer advertisement, leading to denial of service.

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 2026-07-23 20:07 UTC

CWE

CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')

Assigner

redhat redhat root

References

4 references

URL	Tags
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https://access.redhat.com/security/cve/CVE-2026-64611	vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2502799	issue-trackingx_refsource_REDHAT
https://github.com/OpenPrinting/libcupsfilters/se…

Impacted products

5 products

Vendor	Product	Version
Red Hat	Red Hat Enterprise Linux 10	Unaffected: 1:2.0.0-13.el10_2 , < * (rpm) cpe:/o:redhat:enterprise_linux:10.2
Red Hat	Red Hat Enterprise Linux 10	cpe:/o:redhat:enterprise_linux:10
Red Hat	Red Hat Enterprise Linux 7	cpe:/o:redhat:enterprise_linux:7
Red Hat	Red Hat Enterprise Linux 8	cpe:/o:redhat:enterprise_linux:8
Red Hat	Red Hat Enterprise Linux 9	cpe:/o:redhat:enterprise_linux:9

Date Public

2026-06-14 08:37

Credits

Red Hat would like to thank Michalis Vasileiadis for reporting this issue.

Show details on NVD website

JSON

To clipboard

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CVE-2026-64612 (GCVE-0-2026-64612)

Vulnerability from cvelistv5 – Published: 2026-07-20 17:33 – Updated: 2026-08-24 09:42

Title

Libcupsfilters: cups-filters: libcupsfilters: cups image filter process abort via malformed png

Summary

A flaw was found in libcupsfilters and cups-filters. The PNG image reading function creates a libpng reader without installing an error recovery handler, causing the CUPS image filter process to abort when processing a malformed PNG file. An unauthenticated attacker could exploit this by submitting a specially crafted PNG print job, leading to denial of service of the in-flight print job.

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 2026-07-20 18:21 UTC

CWE

CWE-248 - Uncaught Exception

Assigner

redhat redhat root

References

6 references

URL	Tags
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https://access.redhat.com/errata/RHSA-2026:57451	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:58560	vendor-advisoryx_refsource_REDHAT
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https://bugzilla.redhat.com/show_bug.cgi?id=2502801	issue-trackingx_refsource_REDHAT
https://github.com/OpenPrinting/libcupsfilters/se…

Impacted products

5 products

Vendor	Product	Version
Red Hat	Red Hat Enterprise Linux 10	Unaffected: 1:2.0.0-13.el10_2 , < * (rpm) cpe:/o:redhat:enterprise_linux:10.2
Red Hat	Red Hat Enterprise Linux 8	Unaffected: 0:1.20.0-36.el8_10.1 , < * (rpm) cpe:/a:redhat:enterprise_linux:8::appstream cpe:/a:redhat:enterprise_linux:8::crb
Red Hat	Red Hat Enterprise Linux 9	Unaffected: 0:1.28.7-27.el9_8 , < * (rpm) cpe:/a:redhat:enterprise_linux:9::appstream cpe:/a:redhat:enterprise_linux:9::crb
Red Hat	Red Hat Enterprise Linux 10	cpe:/o:redhat:enterprise_linux:10
Red Hat	Red Hat Enterprise Linux 7	cpe:/o:redhat:enterprise_linux:7

Date Public

2026-06-14 08:37

Credits

Red Hat would like to thank Michalis Vasileiadis for reporting this issue.

Show details on NVD website

JSON

To clipboard

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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.

Detection rules are retrieved from Rulezet.

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

OPENSUSE-SU-2026:21818-1

CVE-2026-64611 (GCVE-0-2026-64611)

CVE-2026-64612 (GCVE-0-2026-64612)

Tags

Sightings

Nomenclature

Related by attack behaviour