Vulnerability-Lookup

CNVD-2015-06055

Vulnerability from cnvd - Published: 2015-09-21

Title

QEMU 'vnc.c'拒绝服务漏洞

Description

QEMU是一款开源模拟器软件。 QEMU的VNC显示驱动程序存在整数溢出漏洞，漏洞位于vnc_client_read()及protocol_client_msg()中，客户端用户通过较大的CLIENT_CUT_TEXT消息，利用此漏洞可导致VNC驱动程序无限循环，造成QEMU进程崩溃。

Severity

中

Patch Name

QEMU 'vnc.c'拒绝服务漏洞的补丁

Patch Description

QEMU是一款开源模拟器软件。 QEMU的VNC显示驱动程序存在整数溢出漏洞，漏洞位于vnc_client_read()及protocol_client_msg()中，客户端用户通过较大的CLIENT_CUT_TEXT消息，利用此漏洞可导致VNC驱动程序无限循环，造成QEMU进程崩溃。目前，供应商发布了安全公告及相关补丁信息，修复了此漏洞。

Formal description

用户可联系供应商获得补丁信息： http://fabrice.bellard.free.fr/qemu/

Reference

http://www.securityfocus.com/bid/76620

Impacted products

Name
QEMU QEMU 0

Show details on source website

JSON

To clipboard

{
  "bids": {
    "bid": {
      "bidNumber": "76620"
    }
  },
  "cves": {
    "cve": {
      "cveNumber": "CVE-2015-5239"
    }
  },
  "description": "QEMU\u662f\u4e00\u6b3e\u5f00\u6e90\u6a21\u62df\u5668\u8f6f\u4ef6\u3002\r\n\r\nQEMU\u7684VNC\u663e\u793a\u9a71\u52a8\u7a0b\u5e8f\u5b58\u5728\u6574\u6570\u6ea2\u51fa\u6f0f\u6d1e\uff0c\u6f0f\u6d1e\u4f4d\u4e8evnc_client_read()\u53caprotocol_client_msg()\u4e2d\uff0c\u5ba2\u6237\u7aef\u7528\u6237\u901a\u8fc7\u8f83\u5927\u7684CLIENT_CUT_TEXT\u6d88\u606f\uff0c\u5229\u7528\u6b64\u6f0f\u6d1e\u53ef\u5bfc\u81f4VNC\u9a71\u52a8\u7a0b\u5e8f\u65e0\u9650\u5faa\u73af\uff0c\u9020\u6210QEMU\u8fdb\u7a0b\u5d29\u6e83\u3002",
  "discovererName": "Peter Lieven",
  "formalWay": "\u7528\u6237\u53ef\u8054\u7cfb\u4f9b\u5e94\u5546\u83b7\u5f97\u8865\u4e01\u4fe1\u606f\uff1a\r\nhttp://fabrice.bellard.free.fr/qemu/",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2015-06055",
  "openTime": "2015-09-21",
  "patchDescription": "QEMU\u662f\u4e00\u6b3e\u5f00\u6e90\u6a21\u62df\u5668\u8f6f\u4ef6\u3002 \r\n\r\nQEMU\u7684VNC\u663e\u793a\u9a71\u52a8\u7a0b\u5e8f\u5b58\u5728\u6574\u6570\u6ea2\u51fa\u6f0f\u6d1e\uff0c\u6f0f\u6d1e\u4f4d\u4e8evnc_client_read()\u53caprotocol_client_msg()\u4e2d\uff0c\u5ba2\u6237\u7aef\u7528\u6237\u901a\u8fc7\u8f83\u5927\u7684CLIENT_CUT_TEXT\u6d88\u606f\uff0c\u5229\u7528\u6b64\u6f0f\u6d1e\u53ef\u5bfc\u81f4VNC\u9a71\u52a8\u7a0b\u5e8f\u65e0\u9650\u5faa\u73af\uff0c\u9020\u6210QEMU\u8fdb\u7a0b\u5d29\u6e83\u3002\u76ee\u524d\uff0c\u4f9b\u5e94\u5546\u53d1\u5e03\u4e86\u5b89\u5168\u516c\u544a\u53ca\u76f8\u5173\u8865\u4e01\u4fe1\u606f\uff0c\u4fee\u590d\u4e86\u6b64\u6f0f\u6d1e\u3002",
  "patchName": "QEMU \u0027vnc.c\u0027\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "QEMU QEMU 0"
  },
  "referenceLink": "http://www.securityfocus.com/bid/76620",
  "serverity": "\u4e2d",
  "submitTime": "2015-09-18",
  "title": "QEMU \u0027vnc.c\u0027\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e"
}

CVE-2015-5239 (GCVE-0-2015-5239)

Vulnerability from cvelistv5 – Published: 2020-01-23 19:52 – Updated: 2024-08-06 06:41

Summary

Integer overflow in the VNC display driver in QEMU before 2.1.0 allows attachers to cause a denial of service (process crash) via a CLIENT_CUT_TEXT message, which triggers an infinite loop.

Severity

No CVSS data available.

CWE

Integer Overflow

Assigner

redhat redhat root

References

10 references

URL	Tags
http://lists.opensuse.org/opensuse-security-annou…	x_refsource_MISC
http://lists.fedoraproject.org/pipermail/package-…	x_refsource_MISC
http://lists.fedoraproject.org/pipermail/package-…	x_refsource_MISC
http://lists.fedoraproject.org/pipermail/package-…	x_refsource_MISC
http://lists.opensuse.org/opensuse-security-annou…	x_refsource_MISC
http://lists.opensuse.org/opensuse-security-annou…	x_refsource_MISC
http://www.ubuntu.com/usn/USN-2745-1	x_refsource_MISC
http://www.openwall.com/lists/oss-security/2015/09/02/7	x_refsource_MISC
https://github.com/qemu/qemu/commit/f9a70e79391f6…	x_refsource_CONFIRM
https://www.arista.com/en/support/advisories-noti…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
QEMU	QEMU	Affected: before 2.1.0

Date Public

2015-09-03 00:00

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-06T06:41:08.706Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
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        "references": [
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            "tags": [
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            "url": "http://lists.opensuse.org/opensuse-security-announce/2015-10/msg00026.html"
          },
          {
            "tags": [
              "x_refsource_MISC",
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            "url": "http://lists.fedoraproject.org/pipermail/package-announce/2015-October/168671.html"
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            "tags": [
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          },
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            "tags": [
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            "url": "http://lists.fedoraproject.org/pipermail/package-announce/2015-October/168646.html"
          },
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            "tags": [
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              "x_transferred"
            ],
            "url": "http://lists.opensuse.org/opensuse-security-announce/2015-11/msg00005.html"
          },
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            "url": "http://lists.opensuse.org/opensuse-security-announce/2015-11/msg00011.html"
          },
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            ],
            "url": "http://www.ubuntu.com/usn/USN-2745-1"
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            "url": "http://www.openwall.com/lists/oss-security/2015/09/02/7"
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            "url": "https://www.arista.com/en/support/advisories-notices/security-advisories/1188-security-advisory-14"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
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          "product": "QEMU",
          "vendor": "QEMU",
          "versions": [
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      "problemTypes": [
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        "dateUpdated": "2022-01-25T18:48:53.000Z",
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          "url": "http://lists.fedoraproject.org/pipermail/package-announce/2015-October/168671.html"
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          "tags": [
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          "url": "http://lists.fedoraproject.org/pipermail/package-announce/2015-October/168646.html"
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          "url": "http://lists.opensuse.org/opensuse-security-announce/2015-11/msg00005.html"
        },
        {
          "tags": [
            "x_refsource_MISC"
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          "url": "http://lists.opensuse.org/opensuse-security-announce/2015-11/msg00011.html"
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        {
          "tags": [
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          "url": "http://www.ubuntu.com/usn/USN-2745-1"
        },
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          "tags": [
            "x_refsource_MISC"
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          "url": "http://www.openwall.com/lists/oss-security/2015/09/02/7"
        },
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          "tags": [
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          "url": "https://github.com/qemu/qemu/commit/f9a70e79391f6d7c2a912d785239ee8effc1922d"
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            "x_refsource_MISC"
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    "datePublished": "2020-01-23T19:52:32.000Z",
    "dateReserved": "2015-07-01T00:00:00.000Z",
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    "state": "PUBLISHED"
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  "dataVersion": "5.1"
}

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.

Detection rules are retrieved from Rulezet.

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.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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.