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CNVD-2021-09804

Vulnerability from cnvd - Published: 2021-02-07

Title

QEMU堆缓冲区溢出漏洞（CNVD-2021-09804）

Description

QEMU是一套由法布里斯·贝拉(Fabrice Bellard)所编写的、以GPL许可证分发源码的模拟处理器，在GNU/Linux平台上使用广泛。 QEMU 5.0.0及更早版本的SDHCI设备仿真支持在通过hw/sd/sdhci.c中的sdhci_sdma_transfer_multi_blocks()例程执行多块SDMA传输时存在堆缓冲区溢出漏洞。攻击者可利用该漏洞导致主机上的QEMU进程崩溃，或以主机上的QEMU进程的权限执行任意代码。

Severity

中

Formal description

目前厂商暂未发布修复措施解决此安全问题，建议使用此软件的用户随时关注厂商主页或参考网址以获取解决办法： https://www.qemu.org/

Reference

https://nvd.nist.gov/vuln/detail/CVE-2020-17380

Impacted products

Name
QEMU QEMU <=5.0.0

Show details on source website

JSON

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    "cve": {
      "cveNumber": "CVE-2020-17380",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2020-17380"
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  "description": "QEMU\u662f\u4e00\u5957\u7531\u6cd5\u5e03\u91cc\u65af\u00b7\u8d1d\u62c9(Fabrice Bellard)\u6240\u7f16\u5199\u7684\u3001\u4ee5GPL\u8bb8\u53ef\u8bc1\u5206\u53d1\u6e90\u7801\u7684\u6a21\u62df\u5904\u7406\u5668\uff0c\u5728GNU/Linux\u5e73\u53f0\u4e0a\u4f7f\u7528\u5e7f\u6cdb\u3002\n\nQEMU 5.0.0\u53ca\u66f4\u65e9\u7248\u672c\u7684SDHCI\u8bbe\u5907\u4eff\u771f\u652f\u6301\u5728\u901a\u8fc7hw/sd/sdhci.c\u4e2d\u7684sdhci_sdma_transfer_multi_blocks()\u4f8b\u7a0b\u6267\u884c\u591a\u5757SDMA\u4f20\u8f93\u65f6\u5b58\u5728\u5806\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u5bfc\u81f4\u4e3b\u673a\u4e0a\u7684QEMU\u8fdb\u7a0b\u5d29\u6e83\uff0c\u6216\u4ee5\u4e3b\u673a\u4e0a\u7684QEMU\u8fdb\u7a0b\u7684\u6743\u9650\u6267\u884c\u4efb\u610f\u4ee3\u7801\u3002",
  "formalWay": "\u76ee\u524d\u5382\u5546\u6682\u672a\u53d1\u5e03\u4fee\u590d\u63aa\u65bd\u89e3\u51b3\u6b64\u5b89\u5168\u95ee\u9898\uff0c\u5efa\u8bae\u4f7f\u7528\u6b64\u8f6f\u4ef6\u7684\u7528\u6237\u968f\u65f6\u5173\u6ce8\u5382\u5546\u4e3b\u9875\u6216\u53c2\u8003\u7f51\u5740\u4ee5\u83b7\u53d6\u89e3\u51b3\u529e\u6cd5\uff1a\r\nhttps://www.qemu.org/",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-09804",
  "openTime": "2021-02-07",
  "products": {
    "product": "QEMU QEMU \u003c=5.0.0"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2020-17380",
  "serverity": "\u4e2d",
  "submitTime": "2021-02-01",
  "title": "QEMU\u5806\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\uff08CNVD-2021-09804\uff09"
}

CVE-2020-17380 (GCVE-0-2020-17380)

Vulnerability from cvelistv5 – Published: 2021-01-30 05:38 – Updated: 2024-08-04 13:53

Summary

A heap-based buffer overflow was found in QEMU through 5.0.0 in the SDHCI device emulation support. It could occur while doing a multi block SDMA transfer via the sdhci_sdma_transfer_multi_blocks() routine in hw/sd/sdhci.c. A guest user or process could use this flaw to crash the QEMU process on the host, resulting in a denial of service condition, or potentially execute arbitrary code with privileges of the QEMU process on the host.

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root

References

5 references

URL	Tags
https://bugzilla.redhat.com/show_bug.cgi?id=1862167	x_refsource_CONFIRM
https://lists.nongnu.org/archive/html/qemu-devel/…	x_refsource_CONFIRM
http://www.openwall.com/lists/oss-security/2021/03/09/1	mailing-listx_refsource_MLIST
https://security.netapp.com/advisory/ntap-2021031…	x_refsource_CONFIRM
https://lists.debian.org/debian-lts-announce/2021…	mailing-listx_refsource_MLIST

Show details on NVD website

JSON

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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.
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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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CNVD-2021-09804

CVE-2020-17380 (GCVE-0-2020-17380)

Tags

Sightings

Nomenclature

Related by attack behaviour