cnvd - cnvd-2021-09804

cnvd-2021-09804

Vulnerability from cnvd

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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{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2020-17380",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2020-17380"
    }
  },
  "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

Modified

2024-08-04 13:53

Severity ?

CWE

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.

References

▼	URL	Tags
	https://bugzilla.redhat.com/show_bug.cgi?id=1862167	x_refsource_CONFIRM
	https://lists.nongnu.org/archive/html/qemu-devel/2020-09/msg01175.html	x_refsource_CONFIRM
	http://www.openwall.com/lists/oss-security/2021/03/09/1	mailing-list, x_refsource_MLIST
	https://security.netapp.com/advisory/ntap-20210312-0003/	x_refsource_CONFIRM
	https://lists.debian.org/debian-lts-announce/2021/04/msg00009.html	mailing-list, x_refsource_MLIST

Impacted products

	Vendor	Product	Version
	n/a	n/a	Version: n/a

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 seen somewhere by the user.
Confirmed: The vulnerability is confirmed from an analyst perspective.
Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
Patched: This vulnerability was successfully patched by the user reporting the sighting.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.

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