RHSA-2021:1791

Vulnerability from csaf_opensuse - Published: 2021-05-18 00:00 - Updated: 2026-09-20 11:14
Summary
security update for spice-vdagent
Severity
Moderate
Notes
Title of the patch: security update for spice-vdagent
Description of the patch: This security update provides a functional equivalent of RHSA-2021:1791. The original Red Hat(R) advisory is available from the Red Hat web site at https://access.redhat.com/errata/RHSA-2021:1791.
Patchnames: RHSA-2021:1791
Terms of use: CSAF 2.0 data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0).
Affected products
Product Identifier Version Remediation
Unresolved product id: SUSE Liberty Linux 8:spice-vdagent-0:0.20.0-3.el8.x86_64
Vendor Fix
Threats
Impact moderate
Affected products
Recommended 1 product, the same list as for CVE-2020-25650
Threats
Impact moderate
Affected products
Recommended 1 product, the same list as for CVE-2020-25650
Threats
Impact moderate
Affected products
Recommended 1 product, the same list as for CVE-2020-25650
Threats
Impact important

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  "product_tree": {
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      ],
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        {
          "category": "general",
          "text": "A flaw was found in the way the spice-vdagentd daemon handled file transfers from the host system to the virtual machine. Any unprivileged local guest user with access to the UNIX domain socket path `/run/spice-vdagentd/spice-vdagent-sock` could use this flaw to perform a memory denial of service for spice-vdagentd or even other processes in the VM system. The highest threat from this vulnerability is to system availability. This flaw affects spice-vdagent versions 0.20 and previous versions.",
          "title": "CVE description"
        }
      ],
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          "summary": "CVE-2020-25650",
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        {
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          "summary": "SUSE Bug 1177780 for CVE-2020-25650",
          "url": "https://bugzilla.suse.com/1177780"
        }
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          "text": "https://www.suse.com/security/cve/CVE-2020-25651"
        }
      ],
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        {
          "category": "general",
          "text": "A flaw was found in the SPICE file transfer protocol. File data from the host system can end up in full or in parts in the client connection of an illegitimate local user in the VM system. Active file transfers from other users could also be interrupted, resulting in a denial of service. The highest threat from this vulnerability is to data confidentiality as well as system availability. This flaw affects spice-vdagent versions 0.20 and prior.",
          "title": "CVE description"
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          "text": "A flaw was found in the spice-vdagentd daemon, where it did not properly handle client connections that can be established via the UNIX domain socket in `/run/spice-vdagentd/spice-vdagent-sock`. Any unprivileged local guest user could use this flaw to prevent legitimate agents from connecting to the spice-vdagentd daemon, resulting in a denial of service. The highest threat from this vulnerability is to system availability. This flaw affects spice-vdagent versions 0.20 and prior.",
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      ],
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          "category": "general",
          "text": "A race condition vulnerability was found in the way the spice-vdagentd daemon handled new client connections. This flaw may allow an unprivileged local guest user to become the active agent for spice-vdagentd, possibly resulting in a denial of service or information leakage from the host. The highest threat from this vulnerability is to data confidentiality as well as system availability. This flaw affects spice-vdagent versions 0.20 and prior.",
          "title": "CVE description"
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            "SUSE Liberty Linux 8:spice-vdagent-0:0.20.0-3.el8.x86_64"
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      ],
      "title": "CVE-2020-25653"
    }
  ]
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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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.
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  • 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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