rhsa-2020_3588
Vulnerability from csaf_redhat
Published
2020-09-01 14:55
Modified
2024-11-22 15:32
Summary
Red Hat Security Advisory: libvncserver security update

Notes

Topic
An update for libvncserver is now available for Red Hat Enterprise Linux 8.0 Update Services for SAP Solutions. 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 link(s) in the References section.
Details
LibVNCServer is a C library that enables you to implement VNC server functionality into own programs. Security Fix(es): * libvncserver: websocket decoding buffer overflow (CVE-2017-18922) 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.
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.


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      "discovery_date": "2020-06-30T00:00:00+00:00",
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        {
          "category": "description",
          "text": "A flaw was found in libvncserver. A heap-based buffer overflow within the websocket decoding functionality is possible, which can lead to exploitation by a malicious attacker to overwrite a function pointer. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "libvncserver: websocket decoding buffer overflow",
          "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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          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2017-18922",
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      "release_date": "2017-02-15T00:00:00+00:00",
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            "baseScore": 9.8,
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            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
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            "AppStream-8.0.0.Z.E4S:libvncserver-0:0.9.11-9.el8_0.3.src",
            "AppStream-8.0.0.Z.E4S:libvncserver-0:0.9.11-9.el8_0.3.x86_64",
            "AppStream-8.0.0.Z.E4S:libvncserver-debuginfo-0:0.9.11-9.el8_0.3.i686",
            "AppStream-8.0.0.Z.E4S:libvncserver-debuginfo-0:0.9.11-9.el8_0.3.ppc64le",
            "AppStream-8.0.0.Z.E4S:libvncserver-debuginfo-0:0.9.11-9.el8_0.3.x86_64",
            "AppStream-8.0.0.Z.E4S:libvncserver-debugsource-0:0.9.11-9.el8_0.3.i686",
            "AppStream-8.0.0.Z.E4S:libvncserver-debugsource-0:0.9.11-9.el8_0.3.ppc64le",
            "AppStream-8.0.0.Z.E4S:libvncserver-debugsource-0:0.9.11-9.el8_0.3.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
      ],
      "title": "libvncserver: websocket decoding buffer overflow"
    }
  ]
}


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