RHSA-2025:3959

Vulnerability from csaf_redhat - Published: 2025-04-16 21:10 - Updated: 2026-03-19 01:26
Summary
Red Hat Security Advisory: VolSync 0.11.2 security fixes and enhancements for RHEL 9
Severity
Important
Notes
Topic: VolSync v0.11.2 general availability release images, which provide enhancements, security fixes, and updated container images. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE links in the References section.
Details: VolSync v0.11.2 is a Kubernetes operator that enables asynchronous replication of persistent volumes within a cluster, or across clusters. After deploying the VolSync operator, it can create and maintain copies of your persistent data. For more information about VolSync, see: https://docs.redhat.com/documentation/en-us/red_hat_advanced_cluster_management_for_kubernetes/2.10/html/business_continuity/business-cont-overview#volsync or the VolSync open source community website at: https://volsync.readthedocs.io/en/stable/ This advisory contains enhancements and updates to the VolSync container images. Security fix(es): * golang.org/x/oauth2: Unexpected memory consumption during token parsing in golang.org/x/oauth2 (CVE-2025-22868) * golang.org/x/crypto/ssh: Denial of Service in the Key Exchange of golang.org/x/crypto/ssh (CVE-2025-22869)
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-2025-22868

A flaw was found in the `golang.org/x/oauth2/jws` package in the token parsing component. This vulnerability is made possible because of the use of `strings.Split(token, ".")` to split JWT tokens, which can lead to excessive memory consumption when processing maliciously crafted tokens with a large number of `.` characters. An attacker could exploit this functionality by sending numerous malformed tokens and can trigger memory exhaustion and a Denial of Service.

7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE-1286 - Improper Validation of Syntactic Correctness of Input
Vendor Fix For more details, see the Red Hat Advanced Cluster Management for Kubernetes documentation: https://docs.redhat.com/documentation/en-us/red_hat_advanced_cluster_management_for_kubernetes/2.12/html/business_continuity/business-cont-overview#volsync https://access.redhat.com/errata/RHSA-2025:3959
Workaround To mitigate this vulnerability, it is recommended to pre-validate any payloads passed to `go-jose` to check that they do not contain an excessive amount of `.` characters.
CVE-2025-22869

A flaw was found in the golang.org/x/crypto/ssh package. SSH clients and servers are vulnerable to increased resource consumption, possibly leading to memory exhaustion and a DoS. This can occur during key exchange when the other party is slow to respond during key exchange.

7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE-770 - Allocation of Resources Without Limits or Throttling
Vendor Fix For more details, see the Red Hat Advanced Cluster Management for Kubernetes documentation: https://docs.redhat.com/documentation/en-us/red_hat_advanced_cluster_management_for_kubernetes/2.12/html/business_continuity/business-cont-overview#volsync https://access.redhat.com/errata/RHSA-2025:3959
Workaround This flaw can be mitigated when using the client only connecting to trusted servers.
References
Acknowledgments
jub0bs
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          "text": "golang.org/x/oauth2/jws: Unexpected memory consumption during token parsing in golang.org/x/oauth2/jws",
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        {
          "category": "workaround",
          "details": "To mitigate this vulnerability, it is recommended to pre-validate any payloads passed to `go-jose` to check that they do not contain an excessive amount of `.` characters.",
          "product_ids": [
            "9Base-RHACM-2.12:rhacm2/volsync-operator-bundle@sha256:f7e36802f5857a4e5300a140f58195a1472b67d69bee85333db63a4229604fee_amd64",
            "9Base-RHACM-2.12:rhacm2/volsync-rhel9@sha256:4f4d48d1aec8bca6a2bb1d913c444d8e3aed17fb84c892dc07644baf2b0aa97d_arm64",
            "9Base-RHACM-2.12:rhacm2/volsync-rhel9@sha256:81a293e795d4ded647062667465916cafa23605aa139f4ed56da2fae38dcd3a8_s390x",
            "9Base-RHACM-2.12:rhacm2/volsync-rhel9@sha256:dc85bc3665640b14ba36e221020da1f6681c681005be89923302bc294fd5dfe2_ppc64le",
            "9Base-RHACM-2.12:rhacm2/volsync-rhel9@sha256:fa18cbf3efd16da8e961ab1077fe5af57aa041f09a38220ae733a2bb5c1ad6d0_amd64"
          ]
        }
      ],
      "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"
          },
          "products": [
            "9Base-RHACM-2.12:rhacm2/volsync-operator-bundle@sha256:f7e36802f5857a4e5300a140f58195a1472b67d69bee85333db63a4229604fee_amd64",
            "9Base-RHACM-2.12:rhacm2/volsync-rhel9@sha256:4f4d48d1aec8bca6a2bb1d913c444d8e3aed17fb84c892dc07644baf2b0aa97d_arm64",
            "9Base-RHACM-2.12:rhacm2/volsync-rhel9@sha256:81a293e795d4ded647062667465916cafa23605aa139f4ed56da2fae38dcd3a8_s390x",
            "9Base-RHACM-2.12:rhacm2/volsync-rhel9@sha256:dc85bc3665640b14ba36e221020da1f6681c681005be89923302bc294fd5dfe2_ppc64le",
            "9Base-RHACM-2.12:rhacm2/volsync-rhel9@sha256:fa18cbf3efd16da8e961ab1077fe5af57aa041f09a38220ae733a2bb5c1ad6d0_amd64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
      ],
      "title": "golang.org/x/oauth2/jws: Unexpected memory consumption during token parsing in golang.org/x/oauth2/jws"
    },
    {
      "cve": "CVE-2025-22869",
      "cwe": {
        "id": "CWE-770",
        "name": "Allocation of Resources Without Limits or Throttling"
      },
      "discovery_date": "2025-02-26T04:00:47.683125+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "2348367"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "A flaw was found in the golang.org/x/crypto/ssh package. SSH clients and servers are vulnerable to increased resource consumption, possibly leading to memory exhaustion and a DoS. This can occur during key exchange when the other party is slow to respond during key exchange.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "golang.org/x/crypto/ssh: Denial of Service in the Key Exchange of golang.org/x/crypto/ssh",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "While this flaw affects both SSH clients and servers implemented with golang.org/x/crypto/ssh, realistically the flaw will only lead to a DoS when transferring large files, greatly reducing the likelihood of exploitation.",
          "title": "Statement"
        },
        {
          "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"
        }
      ],
      "product_status": {
        "fixed": [
          "9Base-RHACM-2.12:rhacm2/volsync-operator-bundle@sha256:f7e36802f5857a4e5300a140f58195a1472b67d69bee85333db63a4229604fee_amd64",
          "9Base-RHACM-2.12:rhacm2/volsync-rhel9@sha256:4f4d48d1aec8bca6a2bb1d913c444d8e3aed17fb84c892dc07644baf2b0aa97d_arm64",
          "9Base-RHACM-2.12:rhacm2/volsync-rhel9@sha256:81a293e795d4ded647062667465916cafa23605aa139f4ed56da2fae38dcd3a8_s390x",
          "9Base-RHACM-2.12:rhacm2/volsync-rhel9@sha256:dc85bc3665640b14ba36e221020da1f6681c681005be89923302bc294fd5dfe2_ppc64le",
          "9Base-RHACM-2.12:rhacm2/volsync-rhel9@sha256:fa18cbf3efd16da8e961ab1077fe5af57aa041f09a38220ae733a2bb5c1ad6d0_amd64"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2025-22869"
        },
        {
          "category": "external",
          "summary": "RHBZ#2348367",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2348367"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2025-22869",
          "url": "https://www.cve.org/CVERecord?id=CVE-2025-22869"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2025-22869",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-22869"
        },
        {
          "category": "external",
          "summary": "https://go.dev/cl/652135",
          "url": "https://go.dev/cl/652135"
        },
        {
          "category": "external",
          "summary": "https://go.dev/issue/71931",
          "url": "https://go.dev/issue/71931"
        },
        {
          "category": "external",
          "summary": "https://pkg.go.dev/vuln/GO-2025-3487",
          "url": "https://pkg.go.dev/vuln/GO-2025-3487"
        }
      ],
      "release_date": "2025-02-26T03:07:48.855000+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2025-04-16T21:10:52+00:00",
          "details": "For more details, see the Red Hat Advanced Cluster Management for Kubernetes\ndocumentation:\n\nhttps://docs.redhat.com/documentation/en-us/red_hat_advanced_cluster_management_for_kubernetes/2.12/html/business_continuity/business-cont-overview#volsync",
          "product_ids": [
            "9Base-RHACM-2.12:rhacm2/volsync-operator-bundle@sha256:f7e36802f5857a4e5300a140f58195a1472b67d69bee85333db63a4229604fee_amd64",
            "9Base-RHACM-2.12:rhacm2/volsync-rhel9@sha256:4f4d48d1aec8bca6a2bb1d913c444d8e3aed17fb84c892dc07644baf2b0aa97d_arm64",
            "9Base-RHACM-2.12:rhacm2/volsync-rhel9@sha256:81a293e795d4ded647062667465916cafa23605aa139f4ed56da2fae38dcd3a8_s390x",
            "9Base-RHACM-2.12:rhacm2/volsync-rhel9@sha256:dc85bc3665640b14ba36e221020da1f6681c681005be89923302bc294fd5dfe2_ppc64le",
            "9Base-RHACM-2.12:rhacm2/volsync-rhel9@sha256:fa18cbf3efd16da8e961ab1077fe5af57aa041f09a38220ae733a2bb5c1ad6d0_amd64"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2025:3959"
        },
        {
          "category": "workaround",
          "details": "This flaw can be mitigated when using the client only connecting to trusted servers.",
          "product_ids": [
            "9Base-RHACM-2.12:rhacm2/volsync-operator-bundle@sha256:f7e36802f5857a4e5300a140f58195a1472b67d69bee85333db63a4229604fee_amd64",
            "9Base-RHACM-2.12:rhacm2/volsync-rhel9@sha256:4f4d48d1aec8bca6a2bb1d913c444d8e3aed17fb84c892dc07644baf2b0aa97d_arm64",
            "9Base-RHACM-2.12:rhacm2/volsync-rhel9@sha256:81a293e795d4ded647062667465916cafa23605aa139f4ed56da2fae38dcd3a8_s390x",
            "9Base-RHACM-2.12:rhacm2/volsync-rhel9@sha256:dc85bc3665640b14ba36e221020da1f6681c681005be89923302bc294fd5dfe2_ppc64le",
            "9Base-RHACM-2.12:rhacm2/volsync-rhel9@sha256:fa18cbf3efd16da8e961ab1077fe5af57aa041f09a38220ae733a2bb5c1ad6d0_amd64"
          ]
        }
      ],
      "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"
          },
          "products": [
            "9Base-RHACM-2.12:rhacm2/volsync-operator-bundle@sha256:f7e36802f5857a4e5300a140f58195a1472b67d69bee85333db63a4229604fee_amd64",
            "9Base-RHACM-2.12:rhacm2/volsync-rhel9@sha256:4f4d48d1aec8bca6a2bb1d913c444d8e3aed17fb84c892dc07644baf2b0aa97d_arm64",
            "9Base-RHACM-2.12:rhacm2/volsync-rhel9@sha256:81a293e795d4ded647062667465916cafa23605aa139f4ed56da2fae38dcd3a8_s390x",
            "9Base-RHACM-2.12:rhacm2/volsync-rhel9@sha256:dc85bc3665640b14ba36e221020da1f6681c681005be89923302bc294fd5dfe2_ppc64le",
            "9Base-RHACM-2.12:rhacm2/volsync-rhel9@sha256:fa18cbf3efd16da8e961ab1077fe5af57aa041f09a38220ae733a2bb5c1ad6d0_amd64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
      ],
      "title": "golang.org/x/crypto/ssh: Denial of Service in the Key Exchange of golang.org/x/crypto/ssh"
    }
  ]
}


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Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

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.