Vulnerability-Lookup

OPENSUSE-SU-2026:12373-1

Vulnerability from csaf_opensuse - Published: 2026-10-30 00:00 - Updated: 2026-10-31 17:18

Summary

screen-5.0.2-1.1 on GA media

Severity

Moderate

Notes

Title of the patch: screen-5.0.2-1.1 on GA media

Description of the patch: These are all security issues fixed in the screen-5.0.2-1.1 package on the GA media of openSUSE Tumbleweed.

Patchnames: openSUSE-Tumbleweed-2026-12373

CVE-2025-23395

7.8 (High)


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

Affected products

Recommended 4 products

Product	Version	Remediation
Unresolved product id: openSUSE Tumbleweed:screen-0:5.0.2-1.1.aarch64	—	Vendor Fix
Unresolved product id: openSUSE Tumbleweed:screen-0:5.0.2-1.1.ppc64le	—	Vendor Fix
Unresolved product id: openSUSE Tumbleweed:screen-0:5.0.2-1.1.s390x	—	Vendor Fix
Unresolved product id: openSUSE Tumbleweed:screen-0:5.0.2-1.1.x86_64	—	Vendor Fix

Threats

Impact important

CVE-2025-46803

5 (Medium)


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

Affected products

Recommended 4 products, the same list as for CVE-2025-23395

Threats

Impact moderate

CVE-2025-46804

3.3 (Low)


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

Affected products

Recommended 4 products, the same list as for CVE-2025-23395

Threats

Impact moderate

CVE-2025-46805

4.7 (Medium)


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

Affected products

Recommended 4 products, the same list as for CVE-2025-23395

Threats

Impact moderate

References

14 references

URL	Category
https://www.suse.com/support/security/rating/	external
https://ftp.suse.com/pub/projects/security/csaf/o…	self
https://www.suse.com/security/cve/CVE-2025-23395/	self
https://www.suse.com/security/cve/CVE-2025-46803/	self
https://www.suse.com/security/cve/CVE-2025-46804/	self
https://www.suse.com/security/cve/CVE-2025-46805/	self
https://www.suse.com/security/cve/CVE-2025-23395	external
https://bugzilla.suse.com/1242268	external
https://www.suse.com/security/cve/CVE-2025-46803	external
https://bugzilla.suse.com/1242271	external
https://www.suse.com/security/cve/CVE-2025-46804	external
https://bugzilla.suse.com/1242272	external
https://www.suse.com/security/cve/CVE-2025-46805	external
https://bugzilla.suse.com/1242273	external

JSON

To clipboard

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      ],
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        {
          "category": "general",
          "text": "Screen 5.0.0 when it runs with setuid-root privileges does not drop privileges while operating on a user supplied path. This allows unprivileged users to create files in arbitrary locations with `root` ownership, the invoking user\u0027s (real) group ownership and file mode 0644. All data written to the Screen PTY will be logged into this file, allowing to escalate to root privileges",
          "title": "CVE description"
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      ],
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        {
          "category": "general",
          "text": "The default mode of pseudo terminals (PTYs) allocated by Screen was changed from 0620 to 0622, thereby allowing anyone to write to any Screen PTYs in the system.",
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        {
          "category": "general",
          "text": "A minor information leak when running Screen with setuid-root privileges allows unprivileged users to deduce information about a path that would otherwise not be available.\n\n\nAffected are older Screen versions, as well as version 5.0.0.",
          "title": "CVE description"
        }
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            "openSUSE Tumbleweed:screen-0:5.0.2-1.1.aarch64",
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        }
      ],
      "title": "CVE-2025-46804"
    },
    {
      "cve": "CVE-2025-46805",
      "ids": [
        {
          "system_name": "SUSE CVE Page",
          "text": "https://www.suse.com/security/cve/CVE-2025-46805"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "Screen version 5.0.0 and older version 4 releases have  a TOCTOU race potentially allowing to send SIGHUP, SIGCONT to privileged processes when installed setuid-root.",
          "title": "CVE description"
        }
      ],
      "product_status": {
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          "openSUSE Tumbleweed:screen-0:5.0.2-1.1.s390x",
          "openSUSE Tumbleweed:screen-0:5.0.2-1.1.x86_64"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "CVE-2025-46805",
          "url": "https://www.suse.com/security/cve/CVE-2025-46805"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1242273 for CVE-2025-46805",
          "url": "https://bugzilla.suse.com/1242273"
        }
      ],
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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",
          "product_ids": [
            "openSUSE Tumbleweed:screen-0:5.0.2-1.1.aarch64",
            "openSUSE Tumbleweed:screen-0:5.0.2-1.1.ppc64le",
            "openSUSE Tumbleweed:screen-0:5.0.2-1.1.s390x",
            "openSUSE Tumbleweed:screen-0:5.0.2-1.1.x86_64"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 4.7,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
          "products": [
            "openSUSE Tumbleweed:screen-0:5.0.2-1.1.aarch64",
            "openSUSE Tumbleweed:screen-0:5.0.2-1.1.ppc64le",
            "openSUSE Tumbleweed:screen-0:5.0.2-1.1.s390x",
            "openSUSE Tumbleweed:screen-0:5.0.2-1.1.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "date": "2026-10-30T00:00:00Z",
          "details": "moderate"
        }
      ],
      "title": "CVE-2025-46805"
    }
  ]
}

CVE-2025-23395 (GCVE-0-2025-23395)

Vulnerability from cvelistv5 – Published: 2025-05-26 15:18 – Updated: 2025-05-27 14:10

Title

Local root exploit via `logfile_reopen()` in screen 5.0.0 with setuid-root bit set

Summary

Screen 5.0.0 when it runs with setuid-root privileges does not drop privileges while operating on a user supplied path. This allows unprivileged users to create files in arbitrary locations with `root` ownership, the invoking user's (real) group ownership and file mode 0644. All data written to the Screen PTY will be logged into this file, allowing to escalate to root privileges

Severity

7.8 (High)


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

7.3 (High)


                        
                          CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

SSVC

Exploitation: poc Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-05-27 14:10 UTC

CWE

CWE-271 - Privilege Dropping / Lowering Errors

Assigner

suse CNA under the mitre root

CNA scorecard B 80/100 over 118 records in the last 180 days details

References

2 references

URL	Tags
https://bugzilla.suse.com/show_bug.cgi?id=CVE-202…
https://www.openwall.com/lists/oss-security/2025/…

Impacted products

1 product

Vendor	Product	Version
		Affected: 5.0 , ≤ 5.0.0 (semver)

Date Public

2025-05-12 15:24

Credits

Matthias Gerstner, SUSE

Show details on NVD website

JSON

To clipboard

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CVE-2025-46803 (GCVE-0-2025-46803)

Vulnerability from cvelistv5 – Published: 2025-05-26 15:06 – Updated: 2025-05-27 14:12

Title

Screen creates by default world-writable PTYs

Summary

The default mode of pseudo terminals (PTYs) allocated by Screen was changed from 0620 to 0622, thereby allowing anyone to write to any Screen PTYs in the system.

Severity

5 (Medium)


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

5.1 (Medium)


                        
                          CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:A/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N

SSVC

Exploitation: poc Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-05-27 14:12 UTC

CWE

CWE-276 - Incorrect Default Permissions

Assigner

suse CNA under the mitre root

CNA scorecard B 80/100 over 118 records in the last 180 days details

References

3 references

URL	Tags
https://bugzilla.suse.com/show_bug.cgi?id=CVE-202…
https://www.openwall.com/lists/oss-security/2025/…
http://www.openwall.com/lists/oss-security/2025/05/13/6

Impacted products

1 product

Vendor	Product	Version
		Affected: 5.0 , ≤ 5.0.0 (semver)

Date Public

2025-02-12 16:24

Credits

Matthias Gerstner, SUSE

Show details on NVD website

JSON

To clipboard

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CVE-2025-46804 (GCVE-0-2025-46804)

Vulnerability from cvelistv5 – Published: 2025-05-26 13:31 – Updated: 2025-05-28 13:48

Title

Screen 5.0.0 and older versions allow file existence tests when installed setuid-root

Summary

A minor information leak when running Screen with setuid-root privileges allows unprivileged users to deduce information about a path that would otherwise not be available. Affected are older Screen versions, as well as version 5.0.0.

Severity

3.3 (Low)


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

2 (Low)


                        
                          CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-05-27 14:06 UTC

CWE

CWE-203 - Observable Discrepancy

Assigner

suse CNA under the mitre root

CNA scorecard B 80/100 over 118 records in the last 180 days details

References

2 references

URL	Tags
https://bugzilla.suse.com/show_bug.cgi?id=CVE-202…
https://www.openwall.com/lists/oss-security/2025/…

Impacted products

1 product

Vendor	Product	Version
		Affected: 5.0 , ≤ 5.0.0 (semver) Affected: ? , ≤ 4.9.1 (semver)

Date Public

2025-05-12 15:24

Credits

Matthias Gerstner, SUSE

Show details on NVD website

JSON

To clipboard

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CVE-2025-46805 (GCVE-0-2025-46805)

Vulnerability from cvelistv5 – Published: 2025-05-26 13:16 – Updated: 2025-05-27 14:10

Title

Screen has a TOCTOU race potentially allowing to send SIGHUP, SIGCONT to privileged processes when installed setuid-root

Summary

Screen version 5.0.0 and older version 4 releases have a TOCTOU race potentially allowing to send SIGHUP, SIGCONT to privileged processes when installed setuid-root.

Severity

5.5 (Medium)


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

5.7 (Medium)


                        
                          CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-05-27 14:10 UTC

CWE

CWE-367 - Time-of-check Time-of-use (TOCTOU) Race Condition

Assigner

suse CNA under the mitre root

CNA scorecard B 80/100 over 118 records in the last 180 days details

References

2 references

URL	Tags
https://bugzilla.suse.com/show_bug.cgi?id=CVE-202…
https://www.openwall.com/lists/oss-security/2025/…

Impacted products

1 product

Vendor	Product	Version
		Affected: 5.0. , ≤ 5.0.0 (semver) Affected: ? , ≤ 4.9.1 (semver)

Date Public

2025-05-12 15:24

Credits

Matthias Gerstner, SUSE

Show details on NVD website

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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.

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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.
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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.

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