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RHSA-2022:7968

Vulnerability from csaf_redhat - Published: 2022-11-15 13:21 - Updated: 2026-06-28 09:11
Summary
Red Hat Security Advisory: virt-v2v security, bug fix, and enhancement update
Severity
Low
Notes
Topic: An update for virt-v2v is now available for Red Hat Enterprise Linux 9. Red Hat Product Security has rated this update as having a security impact of Low. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
Details: The virt-v2v package provides a tool for converting virtual machines to use the KVM (Kernel-based Virtual Machine) hypervisor or Red Hat Enterprise Virtualization. The tool modifies both the virtual machine image and its associated libvirt metadata. Also, virt-v2v can configure a guest to use VirtIO drivers if possible. Security Fix(es): * libguestfs: Buffer overflow in get_keys leads to DoS (CVE-2022-2211) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section. Additional Changes: For detailed information on changes in this release, see the Red Hat Enterprise Linux 9.1 Release Notes linked from the References section.
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.

A vulnerability was found in libguestfs. This issue occurs while calculating the greatest possible number of matching keys in the get_keys() function. This flaw leads to a denial of service, either by mistake or malicious actor.

CWE-119 - Improper Restriction of Operations within the Bounds of a Memory Buffer
Affected products
Product Identifier Version Remediation
Unresolved product id: AppStream-9.1.0.GA:virt-v2v-1:2.0.7-6.el9.src
Vendor Fix fix
Unresolved product id: AppStream-9.1.0.GA:virt-v2v-1:2.0.7-6.el9.x86_64
Vendor Fix fix
Unresolved product id: AppStream-9.1.0.GA:virt-v2v-bash-completion-1:2.0.7-6.el9.noarch
Vendor Fix fix
Unresolved product id: AppStream-9.1.0.GA:virt-v2v-debuginfo-1:2.0.7-6.el9.x86_64
Vendor Fix fix
Unresolved product id: AppStream-9.1.0.GA:virt-v2v-debugsource-1:2.0.7-6.el9.x86_64
Vendor Fix fix
Unresolved product id: CRB-9.1.0.GA:virt-v2v-man-pages-ja-1:2.0.7-6.el9.noarch
Vendor Fix fix
Unresolved product id: CRB-9.1.0.GA:virt-v2v-man-pages-uk-1:2.0.7-6.el9.noarch
Vendor Fix fix
Threats
Impact Low
References
URL Category
https://access.redhat.com/errata/RHSA-2022:7968 self
https://access.redhat.com/security/updates/classi… external
https://access.redhat.com/documentation/en-us/red… external
https://bugzilla.redhat.com/show_bug.cgi?id=1684075 external
https://bugzilla.redhat.com/show_bug.cgi?id=1774386 external
https://bugzilla.redhat.com/show_bug.cgi?id=1788823 external
https://bugzilla.redhat.com/show_bug.cgi?id=1817050 external
https://bugzilla.redhat.com/show_bug.cgi?id=1848862 external
https://bugzilla.redhat.com/show_bug.cgi?id=1854275 external
https://bugzilla.redhat.com/show_bug.cgi?id=1868048 external
https://bugzilla.redhat.com/show_bug.cgi?id=1883802 external
https://bugzilla.redhat.com/show_bug.cgi?id=1985830 external
https://bugzilla.redhat.com/show_bug.cgi?id=2003503 external
https://bugzilla.redhat.com/show_bug.cgi?id=2028764 external
https://bugzilla.redhat.com/show_bug.cgi?id=2039597 external
https://bugzilla.redhat.com/show_bug.cgi?id=2047660 external
https://bugzilla.redhat.com/show_bug.cgi?id=2051564 external
https://bugzilla.redhat.com/show_bug.cgi?id=2059287 external
https://bugzilla.redhat.com/show_bug.cgi?id=2062360 external
https://bugzilla.redhat.com/show_bug.cgi?id=2064178 external
https://bugzilla.redhat.com/show_bug.cgi?id=2066773 external
https://bugzilla.redhat.com/show_bug.cgi?id=2069768 external
https://bugzilla.redhat.com/show_bug.cgi?id=2070186 external
https://bugzilla.redhat.com/show_bug.cgi?id=2070530 external
https://bugzilla.redhat.com/show_bug.cgi?id=2074026 external
https://bugzilla.redhat.com/show_bug.cgi?id=2074801 external
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https://bugzilla.redhat.com/show_bug.cgi?id=2076013 external
https://bugzilla.redhat.com/show_bug.cgi?id=2082603 external
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https://bugzilla.redhat.com/show_bug.cgi?id=2116811 external
https://security.access.redhat.com/data/csaf/v2/a… self
https://access.redhat.com/security/cve/CVE-2022-2211 self
https://bugzilla.redhat.com/show_bug.cgi?id=2100862 external
https://www.cve.org/CVERecord?id=CVE-2022-2211 external
https://nvd.nist.gov/vuln/detail/CVE-2022-2211 external
Acknowledgments

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        "product_reference": "virt-v2v-man-pages-uk-1:2.0.7-6.el9.noarch",
        "relates_to_product_reference": "CRB-9.1.0.GA"
      }
    ]
  },
  "vulnerabilities": [
    {
      "acknowledgments": [
        {
          "names": [
            "Laszlo Ersek"
          ],
          "summary": "Acknowledged by upstream."
        }
      ],
      "cve": "CVE-2022-2211",
      "cwe": {
        "id": "CWE-119",
        "name": "Improper Restriction of Operations within the Bounds of a Memory Buffer"
      },
      "discovery_date": "2022-06-23T00:00:00+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "2100862"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "A vulnerability was found in libguestfs. This issue occurs while calculating the greatest possible number of matching keys in the get_keys() function. This flaw leads to a denial of service, either by mistake or malicious actor.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "libguestfs: Buffer overflow in get_keys leads to DoS",
          "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"
        }
      ],
      "product_status": {
        "fixed": [
          "AppStream-9.1.0.GA:virt-v2v-1:2.0.7-6.el9.src",
          "AppStream-9.1.0.GA:virt-v2v-1:2.0.7-6.el9.x86_64",
          "AppStream-9.1.0.GA:virt-v2v-bash-completion-1:2.0.7-6.el9.noarch",
          "AppStream-9.1.0.GA:virt-v2v-debuginfo-1:2.0.7-6.el9.x86_64",
          "AppStream-9.1.0.GA:virt-v2v-debugsource-1:2.0.7-6.el9.x86_64",
          "CRB-9.1.0.GA:virt-v2v-man-pages-ja-1:2.0.7-6.el9.noarch",
          "CRB-9.1.0.GA:virt-v2v-man-pages-uk-1:2.0.7-6.el9.noarch"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2022-2211"
        },
        {
          "category": "external",
          "summary": "RHBZ#2100862",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2100862"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2022-2211",
          "url": "https://www.cve.org/CVERecord?id=CVE-2022-2211"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2022-2211",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-2211"
        }
      ],
      "release_date": "2022-06-24T13:43:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2022-11-15T13:21:45+00:00",
          "details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258",
          "product_ids": [
            "AppStream-9.1.0.GA:virt-v2v-1:2.0.7-6.el9.src",
            "AppStream-9.1.0.GA:virt-v2v-1:2.0.7-6.el9.x86_64",
            "AppStream-9.1.0.GA:virt-v2v-bash-completion-1:2.0.7-6.el9.noarch",
            "AppStream-9.1.0.GA:virt-v2v-debuginfo-1:2.0.7-6.el9.x86_64",
            "AppStream-9.1.0.GA:virt-v2v-debugsource-1:2.0.7-6.el9.x86_64",
            "CRB-9.1.0.GA:virt-v2v-man-pages-ja-1:2.0.7-6.el9.noarch",
            "CRB-9.1.0.GA:virt-v2v-man-pages-uk-1:2.0.7-6.el9.noarch"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2022:7968"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 5.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
          "products": [
            "AppStream-9.1.0.GA:virt-v2v-1:2.0.7-6.el9.src",
            "AppStream-9.1.0.GA:virt-v2v-1:2.0.7-6.el9.x86_64",
            "AppStream-9.1.0.GA:virt-v2v-bash-completion-1:2.0.7-6.el9.noarch",
            "AppStream-9.1.0.GA:virt-v2v-debuginfo-1:2.0.7-6.el9.x86_64",
            "AppStream-9.1.0.GA:virt-v2v-debugsource-1:2.0.7-6.el9.x86_64",
            "CRB-9.1.0.GA:virt-v2v-man-pages-ja-1:2.0.7-6.el9.noarch",
            "CRB-9.1.0.GA:virt-v2v-man-pages-uk-1:2.0.7-6.el9.noarch"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Low"
        }
      ],
      "title": "libguestfs: Buffer overflow in get_keys leads to DoS"
    }
  ]
}



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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

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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Detection rules are retrieved from Rulezet.

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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.


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