Vulnerability-Lookup

alsa-2020:3385

Vulnerability from osv_almalinux

Published

2020-08-10 13:51

Modified

2021-08-11 08:54

Summary

Important: libvncserver security update

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.

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "AlmaLinux:8",
        "name": "libvncserver-devel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.9.11-15.el8_2.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "details": "LibVNCServer is a C library that enables you to implement VNC server functionality into own programs.\n\nSecurity Fix(es):\n\n* libvncserver: websocket decoding buffer overflow (CVE-2017-18922)\n\nFor 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.",
  "id": "ALSA-2020:3385",
  "modified": "2021-08-11T08:54:00Z",
  "published": "2020-08-10T13:51:34Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://vulners.com/cve/CVE-2017-18922"
    }
  ],
  "related": [
    "CVE-2017-18922"
  ],
  "summary": "Important: libvncserver security update"
}

CVE-2017-18922 (GCVE-0-2017-18922)

Vulnerability from cvelistv5 – Published: 2020-06-30 11:00 – Updated: 2024-08-05 21:45

Summary

It was discovered that websockets.c in LibVNCServer prior to 0.9.12 did not properly decode certain WebSocket frames. A malicious attacker could exploit this by sending specially crafted WebSocket frames to a server, causing a heap-based buffer overflow.

Severity ?

No CVSS data available.

CWE

Assigner

mitre

References

URL

Tags

	https://github.com/LibVNC/libvncserver/commit/aac…	x_refsource_MISC
	https://www.openwall.com/lists/oss-security/2020/…	x_refsource_MISC
	https://bugzilla.redhat.com/show_bug.cgi?id=1852356	x_refsource_MISC
	http://www.openwall.com/lists/oss-security/2020/06/30/3	mailing-listx_refsource_MLIST
	http://lists.opensuse.org/opensuse-security-annou…	vendor-advisoryx_refsource_SUSE
	https://lists.fedoraproject.org/archives/list/pac…	vendor-advisoryx_refsource_FEDORA
	https://usn.ubuntu.com/4407-1/	vendor-advisoryx_refsource_UBUNTU
	https://lists.fedoraproject.org/archives/list/pac…	vendor-advisoryx_refsource_FEDORA
	http://lists.opensuse.org/opensuse-security-annou…	vendor-advisoryx_refsource_SUSE
	http://lists.opensuse.org/opensuse-security-annou…	vendor-advisoryx_refsource_SUSE
	http://lists.opensuse.org/opensuse-security-annou…	vendor-advisoryx_refsource_SUSE
	http://lists.opensuse.org/opensuse-security-annou…	vendor-advisoryx_refsource_SUSE
	https://cert-portal.siemens.com/productcert/pdf/s…	x_refsource_CONFIRM

Show details on NVD website

JSON

To clipboard

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}

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.

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