Vulnerability-Lookup

OESA-2022-2090 (CVE-2020-29260)

Vulnerability from osv_openeuler – Published: 2022-11-11 11:05 – Updated: 2026-08-06 11:05 – Source website

Summary

libvncserver security update

Details

libvncserver is a set of programs using the RFB (Remote Frame Buffer) protocol. They are designed to "export" a frame buffer via net: you set up a server and can connect to it via VNC viewers. If the server supports WebSockets (which LibVNCServer does), you can also connect using an in-browser VNC viewer like noVNC. It is already in wide use for administration, but it is not that easy to program a server yourself.

Security Fix(es):

libvncclient v0.9.13 was discovered to contain a memory leak via the function rfbClientCleanup().(CVE-2020-29260)

Severity

7.5 (High)


                    
                      CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References

URL

Type

	https://www.openeuler.org/en/security/safety-bull…	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2020-29260	ADVISORY

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "aarch64": [
          "libvncserver-debuginfo-0.9.13-3.oe2203.aarch64.rpm",
          "libvncserver-devel-0.9.13-3.oe2203.aarch64.rpm",
          "libvncserver-0.9.13-3.oe2203.aarch64.rpm",
          "libvncserver-debugsource-0.9.13-3.oe2203.aarch64.rpm"
        ],
        "src": [
          "libvncserver-0.9.13-3.oe2203.src.rpm"
        ],
        "x86_64": [
          "libvncserver-debugsource-0.9.13-3.oe2203.x86_64.rpm",
          "libvncserver-devel-0.9.13-3.oe2203.x86_64.rpm",
          "libvncserver-0.9.13-3.oe2203.x86_64.rpm",
          "libvncserver-debuginfo-0.9.13-3.oe2203.x86_64.rpm"
        ]
      },
      "package": {
        "ecosystem": "openEuler:22.03-LTS",
        "name": "libvncserver",
        "purl": "pkg:rpm/openEuler/libvncserver\u0026distro=openEuler-22.03-LTS"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.9.13-3.oe2203"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "severity": "High"
  },
  "details": "libvncserver is a set of programs using the RFB (Remote Frame Buffer) protocol. They are designed to \u0026quot;export\u0026quot; a frame buffer via net: you set up a server and can connect to it via VNC viewers. If the server supports WebSockets (which LibVNCServer does), you can also connect using an in-browser VNC viewer like noVNC. It is already in wide use for administration, but it is not that easy to program a server yourself.\r\n\r\nSecurity Fix(es):\r\n\r\nlibvncclient v0.9.13 was discovered to contain a memory leak via the function rfbClientCleanup().(CVE-2020-29260)",
  "id": "OESA-2022-2090",
  "modified": "2026-08-06T11:05:24Z",
  "published": "2022-11-11T11:05:24Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2022-2090"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-29260"
    }
  ],
  "schema_version": "1.7.2",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "libvncserver security update",
  "upstream": [
    "CVE-2020-29260"
  ]
}

CVE-2020-29260 (GCVE-0-2020-29260)

Vulnerability from cvelistv5 – Published: 2022-09-02 22:14 – Updated: 2024-08-04 16:48

Summary

libvncclient v0.9.13 was discovered to contain a memory leak via the function rfbClientCleanup().

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root

References

2 references

URL	Tags
https://github.com/LibVNC/libvncserver/commit/bef…	x_refsource_MISC
https://lists.debian.org/debian-lts-announce/2022…	mailing-listx_refsource_MLIST

Show details on NVD website

JSON

To clipboard

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        "providerMetadata": {
          "dateUpdated": "2024-08-04T16:48:01.600Z",
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            ],
            "url": "https://github.com/LibVNC/libvncserver/commit/bef41f6ec4097a8ee094f90a1b34a708fbd757ec"
          },
          {
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            "tags": [
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            ],
            "url": "https://lists.debian.org/debian-lts-announce/2022/09/msg00035.html"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
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          "versions": [
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      "descriptions": [
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      "providerMetadata": {
        "dateUpdated": "2022-09-30T00:06:18.000Z",
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      },
      "references": [
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          ],
          "url": "https://github.com/LibVNC/libvncserver/commit/bef41f6ec4097a8ee094f90a1b34a708fbd757ec"
        },
        {
          "name": "[debian-lts-announce] 20220929 [SECURITY] [DLA 3125-1] libvncserver security update",
          "tags": [
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            "x_refsource_MLIST"
          ],
          "url": "https://lists.debian.org/debian-lts-announce/2022/09/msg00035.html"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "cve@mitre.org",
          "ID": "CVE-2020-29260",
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        "affects": {
          "vendor": {
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    "datePublished": "2022-09-02T22:14:35.000Z",
    "dateReserved": "2020-11-27T00:00:00.000Z",
    "dateUpdated": "2024-08-04T16:48:01.600Z",
    "state": "PUBLISHED"
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  "dataType": "CVE_RECORD",
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}

Sightings

Author	Source	Type	Date	Other

Nomenclature

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Confirmed: The vulnerability has been validated from an analyst's perspective.
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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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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OESA-2022-2090 (CVE-2020-29260)

CVE-2020-29260 (GCVE-0-2020-29260)

Tags

Sightings

Nomenclature

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