FKIE_CVE-2018-5683

Vulnerability from fkie_nvd - Published: 2018-01-23 18:29 - Updated: 2026-06-17 02:00
Severity
6.0 (Medium) - CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H
Summary
The vga_draw_text function in Qemu allows local OS guest privileged users to cause a denial of service (out-of-bounds read and QEMU process crash) by leveraging improper memory address validation.
References
cve@mitre.orghttp://www.openwall.com/lists/oss-security/2018/01/15/2Mailing List, Patch, Third Party Advisory
cve@mitre.orghttp://www.securityfocus.com/bid/102518Third Party Advisory, VDB Entry
cve@mitre.orghttps://access.redhat.com/errata/RHSA-2018:0816Third Party Advisory
cve@mitre.orghttps://access.redhat.com/errata/RHSA-2018:1104Third Party Advisory
cve@mitre.orghttps://access.redhat.com/errata/RHSA-2018:2162Third Party Advisory
cve@mitre.orghttps://lists.debian.org/debian-lts-announce/2018/09/msg00007.htmlMailing List, Third Party Advisory
cve@mitre.orghttps://lists.gnu.org/archive/html/qemu-devel/2018-01/msg02597.htmlExploit, Mailing List, Third Party Advisory
cve@mitre.orghttps://usn.ubuntu.com/3575-1/Third Party Advisory
cve@mitre.orghttps://www.debian.org/security/2018/dsa-4213Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2018/01/15/2Mailing List, Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/102518Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/errata/RHSA-2018:0816Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/errata/RHSA-2018:1104Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/errata/RHSA-2018:2162Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2018/09/msg00007.htmlMailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://lists.gnu.org/archive/html/qemu-devel/2018-01/msg02597.htmlExploit, Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://usn.ubuntu.com/3575-1/Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.debian.org/security/2018/dsa-4213Third Party Advisory
Impacted products
Vendor Product Version
qemu qemu *
debian debian_linux 8.0
debian debian_linux 9.0
redhat enterprise_linux_desktop 6.0
redhat enterprise_linux_desktop 7.0
redhat enterprise_linux_server 6.0
redhat enterprise_linux_server 7.0
redhat enterprise_linux_server_aus 7.6
redhat enterprise_linux_server_aus 7.7
redhat enterprise_linux_server_eus 7.6
redhat enterprise_linux_server_eus 7.7
redhat enterprise_linux_server_tus 7.6
redhat enterprise_linux_server_tus 7.7
redhat enterprise_linux_workstation 6.0
redhat enterprise_linux_workstation 7.0
canonical ubuntu_linux 14.04
canonical ubuntu_linux 16.04
canonical ubuntu_linux 17.10
To clipboard 

{
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          "vendor": "n/a",
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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "The vga_draw_text function in Qemu allows local OS guest privileged users to cause a denial of service (out-of-bounds read and QEMU process crash) by leveraging improper memory address validation."
    },
    {
      "lang": "es",
      "value": "La funci\u00f3n vga_draw_text en Qemu permite que usuarios del sistema operativo invitados con privilegios provoquen una denegaci\u00f3n de servicio (acceso de lectura fuera de l\u00edmites y cierre inesperado del proceso Qemu) aprovechando la validaci\u00f3n indebida de direcciones de memoria."
    }
  ],
  "id": "CVE-2018-5683",
  "lastModified": "2026-06-17T02:00:35.353",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "LOW",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "LOCAL",
          "authentication": "NONE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 2.1,
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "vectorString": "AV:L/AC:L/Au:N/C:N/I:N/A:P",
          "version": "2.0"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 2.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
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          "baseScore": 6.0,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "HIGH",
          "scope": "CHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H",
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        "source": "nvd@nist.gov",
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  "published": "2018-01-23T18:29:00.580",
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}



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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.



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.