Vulnerability-Lookup

RHSA-2026:2375

Vulnerability from csaf_redhat - Published: 2026-02-09 22:06 - Updated: 2026-06-30 02:13

Summary

Red Hat Security Advisory: Red Hat Web Terminal Operator 1.15.0 release.

Severity

Important

Notes

Topic: Red Hat Web Terminal Operator 1.15.0 has been released.

Details: The Web Terminal provides a way to access a fully in-browser terminal emulator within the OpenShift Console. Command-line tools for interacting with the OpenShift cluster are pre-installed.

Terms of Use: This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.

CVE-2025-61729

A flaw was found in golang. A remote attacker could exploit this vulnerability by providing a specially crafted certificate during the error string construction process within the `HostnameError.Error()` function. This flaw, caused by unbounded string concatenation, leads to excessive resource consumption. Successful exploitation can result in a denial of service (DoS) for the affected system.

7.5 (High)


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

CWE-1050 - Excessive Platform Resource Consumption within a Loop

Affected products

Fixed 1 product

Product	Identifier	Version	Remediation
Unresolved product id: Red Hat Web Terminal 1.15:registry.redhat.io/web-terminal/web-terminal-exec-rhel9@sha256:bb8b42c5ad61f320a6b9acbcbc081df4572765fc6b9ce6bed7fa653c7f0d10a1_amd64		—	Vendor Fix fix

Known not affected 3 products

Product	Identifier	Version	Remediation
Unresolved product id: Red Hat Web Terminal 1.15:registry.redhat.io/web-terminal/web-terminal-operator-bundle@sha256:376684e2041f93229961a5d42caea9676974bae7b04c3359ca79b62b7843ff9d_amd64		—
Unresolved product id: Red Hat Web Terminal 1.15:registry.redhat.io/web-terminal/web-terminal-rhel9-operator@sha256:32a943b80bc09d087d634aced86ed9865cdf8983fbb7aef6a1e46de9766b8f92_amd64		—
Unresolved product id: Red Hat Web Terminal 1.15:registry.redhat.io/web-terminal/web-terminal-tooling-rhel9@sha256:1686ad755930e40920456e966384edc9b43d5ab62b9b09eb9acf541c5a5c79e3_amd64		—

Threats

Impact Important

References

12 references

URL	Category
https://access.redhat.com/errata/RHSA-2026:2375	self
https://access.redhat.com/security/cve/CVE-2025-61729	external
https://access.redhat.com/security/updates/classi…	external
https://security.access.redhat.com/data/csaf/v2/a…	self
https://access.redhat.com/security/cve/CVE-2025-61729	self
https://bugzilla.redhat.com/show_bug.cgi?id=2418462	external
https://www.cve.org/CVERecord?id=CVE-2025-61729	external
https://nvd.nist.gov/vuln/detail/CVE-2025-61729	external
https://go.dev/cl/725920	external
https://go.dev/issue/76445	external
https://groups.google.com/g/golang-announce/c/8FJ…	external
https://pkg.go.dev/vuln/GO-2025-4155	external

JSON

To clipboard

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        "id": "CWE-1050",
        "name": "Excessive Platform Resource Consumption within a Loop"
      },
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            "Red Hat Web Terminal 1.15:registry.redhat.io/web-terminal/web-terminal-rhel9-operator@sha256:32a943b80bc09d087d634aced86ed9865cdf8983fbb7aef6a1e46de9766b8f92_amd64",
            "Red Hat Web Terminal 1.15:registry.redhat.io/web-terminal/web-terminal-tooling-rhel9@sha256:1686ad755930e40920456e966384edc9b43d5ab62b9b09eb9acf541c5a5c79e3_amd64"
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          "text": "2418462"
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        {
          "category": "description",
          "text": "A flaw was found in golang. A remote attacker could exploit this vulnerability by providing a specially crafted certificate during the error string construction process within the `HostnameError.Error()` function. This flaw, caused by unbounded string concatenation, leads to excessive resource consumption. Successful exploitation can result in a denial of service (DoS) for the affected system.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "crypto/x509: golang: Denial of Service due to excessive resource consumption via crafted certificate",
          "title": "Vulnerability summary"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
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          "Red Hat Web Terminal 1.15:registry.redhat.io/web-terminal/web-terminal-rhel9-operator@sha256:32a943b80bc09d087d634aced86ed9865cdf8983fbb7aef6a1e46de9766b8f92_amd64",
          "Red Hat Web Terminal 1.15:registry.redhat.io/web-terminal/web-terminal-tooling-rhel9@sha256:1686ad755930e40920456e966384edc9b43d5ab62b9b09eb9acf541c5a5c79e3_amd64"
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          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2025-61729"
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          "summary": "RHBZ#2418462",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2418462"
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          "summary": "https://www.cve.org/CVERecord?id=CVE-2025-61729",
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        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2025-61729",
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          "summary": "https://go.dev/cl/725920",
          "url": "https://go.dev/cl/725920"
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          "details": "To start using the Web Terminal Operator, install the Web Terminal Operator from OpenShift OperatorHub on OpenShift Container Platform 4.20 or higher.",
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          ],
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          "url": "https://access.redhat.com/errata/RHSA-2026:2375"
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      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "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",
            "version": "3.1"
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          "products": [
            "Red Hat Web Terminal 1.15:registry.redhat.io/web-terminal/web-terminal-exec-rhel9@sha256:bb8b42c5ad61f320a6b9acbcbc081df4572765fc6b9ce6bed7fa653c7f0d10a1_amd64",
            "Red Hat Web Terminal 1.15:registry.redhat.io/web-terminal/web-terminal-operator-bundle@sha256:376684e2041f93229961a5d42caea9676974bae7b04c3359ca79b62b7843ff9d_amd64",
            "Red Hat Web Terminal 1.15:registry.redhat.io/web-terminal/web-terminal-rhel9-operator@sha256:32a943b80bc09d087d634aced86ed9865cdf8983fbb7aef6a1e46de9766b8f92_amd64",
            "Red Hat Web Terminal 1.15:registry.redhat.io/web-terminal/web-terminal-tooling-rhel9@sha256:1686ad755930e40920456e966384edc9b43d5ab62b9b09eb9acf541c5a5c79e3_amd64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
      ],
      "title": "crypto/x509: golang: Denial of Service due to excessive resource consumption via crafted certificate"
    }
  ]
}

CVE-2025-61729 (GCVE-0-2025-61729)

Vulnerability from cvelistv5 – Published: 2025-12-02 18:54 – Updated: 2025-12-03 19:37

Title

Excessive resource consumption when printing error string for host certificate validation in crypto/x509

Summary

Within HostnameError.Error(), when constructing an error string, there is no limit to the number of hosts that will be printed out. Furthermore, the error string is constructed by repeated string concatenation, leading to quadratic runtime. Therefore, a certificate provided by a malicious actor can result in excessive resource consumption.

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: no Technical Impact: partial

CISA Coordinator (v2.0.3)

CWE

CWE-400 - Uncontrolled Resource Consumption

Assigner

References

4 references

URL	Tags
https://go.dev/cl/725920
https://go.dev/issue/76445
https://groups.google.com/g/golang-announce/c/8FJ…
https://pkg.go.dev/vuln/GO-2025-4155

Impacted products

1 product

Vendor	Product	Version
Go standard library	crypto/x509	Affected: 0 , < 1.24.11 (semver) Affected: 1.25.0 , < 1.25.5 (semver)

Credits

Philippe Antoine (Catena cyber)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "HIGH",
              "baseScore": 7.5,
              "baseSeverity": "HIGH",
              "confidentialityImpact": "NONE",
              "integrityImpact": "NONE",
              "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",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2025-61729",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-12-02T21:52:36.341575Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-12-02T21:52:58.224Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "collectionURL": "https://pkg.go.dev",
          "defaultStatus": "unaffected",
          "packageName": "crypto/x509",
          "product": "crypto/x509",
          "programRoutines": [
            {
              "name": "Certificate.VerifyHostname"
            },
            {
              "name": "Certificate.Verify"
            }
          ],
          "vendor": "Go standard library",
          "versions": [
            {
              "lessThan": "1.24.11",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThan": "1.25.5",
              "status": "affected",
              "version": "1.25.0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "value": "Philippe Antoine (Catena cyber)"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Within HostnameError.Error(), when constructing an error string, there is no limit to the number of hosts that will be printed out. Furthermore, the error string is constructed by repeated string concatenation, leading to quadratic runtime. Therefore, a certificate provided by a malicious actor can result in excessive resource consumption."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "CWE-400: Uncontrolled Resource Consumption",
              "lang": "en"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-12-03T19:37:14.903Z",
        "orgId": "1bb62c36-49e3-4200-9d77-64a1400537cc",
        "shortName": "Go"
      },
      "references": [
        {
          "url": "https://go.dev/cl/725920"
        },
        {
          "url": "https://go.dev/issue/76445"
        },
        {
          "url": "https://groups.google.com/g/golang-announce/c/8FJoBkPddm4"
        },
        {
          "url": "https://pkg.go.dev/vuln/GO-2025-4155"
        }
      ],
      "title": "Excessive resource consumption when printing error string for host certificate validation in crypto/x509"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "1bb62c36-49e3-4200-9d77-64a1400537cc",
    "assignerShortName": "Go",
    "cveId": "CVE-2025-61729",
    "datePublished": "2025-12-02T18:54:10.166Z",
    "dateReserved": "2025-09-30T15:05:03.605Z",
    "dateUpdated": "2025-12-03T19:37:14.903Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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.

Action not permitted

RHSA-2026:2375

CVE-2025-61729 (GCVE-0-2025-61729)

Tags

Sightings

Nomenclature