Vulnerability-Lookup

CNVD-2023-80119

Vulnerability from cnvd - Published: 2023-10-27

Title

QEMU缓冲区溢出漏洞（CNVD-2023-80119）

Description

QEMU（Quick Emulator）是一套模拟处理器软件。该软件具有速度快、跨平台等特点。 QEMU存在缓冲区溢出漏洞，该漏洞源于qxl_cursor（）中的双重提取可能导致堆缓冲区溢出。恶意特权攻击者可利用该漏洞使主机上的QEMU进程崩溃，或者可能在QEMU进程的上下文中执行任意代码。

Severity

中

Patch Name

QEMU缓冲区溢出漏洞（CNVD-2023-80119）的补丁

Patch Description

QEMU（Quick Emulator）是一套模拟处理器软件。该软件具有速度快、跨平台等特点。 QEMU存在缓冲区溢出漏洞，该漏洞源于qxl_cursor（）中的双重提取可能导致堆缓冲区溢出。恶意特权攻击者可利用该漏洞使主机上的QEMU进程崩溃，或者可能在QEMU进程的上下文中执行任意代码。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

目前厂商已发布升级补丁以修复漏洞，详情请关注厂商主页： https://www.qemu.org/

Reference

https://nvd.nist.gov/vuln/detail/CVE-2021-4207

Impacted products

Name
Qemu QEMU <7.0.0

Show details on source website

JSON

To clipboard

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  "cves": {
    "cve": {
      "cveNumber": "CVE-2021-4207",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2021-4207"
    }
  },
  "description": "QEMU\uff08Quick Emulator\uff09\u662f\u4e00\u5957\u6a21\u62df\u5904\u7406\u5668\u8f6f\u4ef6\u3002\u8be5\u8f6f\u4ef6\u5177\u6709\u901f\u5ea6\u5feb\u3001\u8de8\u5e73\u53f0\u7b49\u7279\u70b9\u3002\n\nQEMU\u5b58\u5728\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8eqxl_cursor\uff08\uff09\u4e2d\u7684\u53cc\u91cd\u63d0\u53d6\u53ef\u80fd\u5bfc\u81f4\u5806\u7f13\u51b2\u533a\u6ea2\u51fa\u3002\u6076\u610f\u7279\u6743\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u4f7f\u4e3b\u673a\u4e0a\u7684QEMU\u8fdb\u7a0b\u5d29\u6e83\uff0c\u6216\u8005\u53ef\u80fd\u5728QEMU\u8fdb\u7a0b\u7684\u4e0a\u4e0b\u6587\u4e2d\u6267\u884c\u4efb\u610f\u4ee3\u7801\u3002",
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  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2023-80119",
  "openTime": "2023-10-27",
  "patchDescription": "QEMU\uff08Quick Emulator\uff09\u662f\u4e00\u5957\u6a21\u62df\u5904\u7406\u5668\u8f6f\u4ef6\u3002\u8be5\u8f6f\u4ef6\u5177\u6709\u901f\u5ea6\u5feb\u3001\u8de8\u5e73\u53f0\u7b49\u7279\u70b9\u3002\r\n\r\nQEMU\u5b58\u5728\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8eqxl_cursor\uff08\uff09\u4e2d\u7684\u53cc\u91cd\u63d0\u53d6\u53ef\u80fd\u5bfc\u81f4\u5806\u7f13\u51b2\u533a\u6ea2\u51fa\u3002\u6076\u610f\u7279\u6743\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u4f7f\u4e3b\u673a\u4e0a\u7684QEMU\u8fdb\u7a0b\u5d29\u6e83\uff0c\u6216\u8005\u53ef\u80fd\u5728QEMU\u8fdb\u7a0b\u7684\u4e0a\u4e0b\u6587\u4e2d\u6267\u884c\u4efb\u610f\u4ee3\u7801\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\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\uff08CNVD-2023-80119\uff09\u7684\u8865\u4e01",
  "products": {
    "product": "Qemu QEMU \u003c7.0.0"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2021-4207",
  "serverity": "\u4e2d",
  "submitTime": "2022-05-24",
  "title": "QEMU\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\uff08CNVD-2023-80119\uff09"
}

CVE-2021-4207 (GCVE-0-2021-4207)

Vulnerability from cvelistv5 – Published: 2022-04-29 16:07 – Updated: 2025-03-21 18:03

Summary

A flaw was found in the QXL display device emulation in QEMU. A double fetch of guest controlled values `cursor->header.width` and `cursor->header.height` can lead to the allocation of a small cursor object followed by a subsequent heap-based buffer overflow. A malicious privileged guest user could use this flaw to crash the QEMU process on the host or potentially execute arbitrary code within the context of the QEMU process.

Severity

No CVSS data available.

CWE

CWE-362 - >CWE-120

Assigner

redhat redhat root

References

6 references

URL	Tags
https://bugzilla.redhat.com/show_bug.cgi?id=2036966	x_refsource_MISC
https://starlabs.sg/advisories/21-4207/	x_refsource_MISC
https://www.debian.org/security/2022/dsa-5133	vendor-advisoryx_refsource_DEBIAN
https://security.gentoo.org/glsa/202208-27	vendor-advisoryx_refsource_GENTOO
https://lists.debian.org/debian-lts-announce/2022…	mailing-listx_refsource_MLIST
https://security.netapp.com/advisory/ntap-2025032…

Impacted products

1 product

Vendor	Product	Version
n/a	QEMU	Affected: qemu-kvm 7.0.0

Show details on NVD website

JSON

To clipboard

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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.

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

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CNVD-2023-80119

CVE-2021-4207 (GCVE-0-2021-4207)

Tags

Sightings

Nomenclature

Related by attack behaviour