Vulnerability-Lookup

CNVD-2021-06865

Vulnerability from cnvd - Published: 2021-01-27

Title

QEMU越界读访问漏洞

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 5.1.0中的hw/ide/atapi.c中的ide_atapi_cmd_reply_end存在越界读访问漏洞。该漏洞源于未验证缓冲区索引。攻击者可利用该漏洞导致主机上的QEMU进程崩溃。

Severity

中

Patch Name

QEMU越界读访问漏洞的补丁

Patch Description

Formal description

厂商已发布了漏洞修复程序，请及时关注更新： https://lists.nongnu.org/archive/html/qemu-devel/2020-11/msg04685.html

Reference

https://nvd.nist.gov/vuln/detail/CVE-2020-29443

Impacted products

Name
QEMU QEMU 5.1.0

Show details on source website

JSON

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{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2020-29443",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2020-29443"
    }
  },
  "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 5.1.0\u4e2d\u7684hw/ide/atapi.c\u4e2d\u7684ide_atapi_cmd_reply_end\u5b58\u5728\u8d8a\u754c\u8bfb\u8bbf\u95ee\u6f0f\u6d1e\u3002\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u672a\u9a8c\u8bc1\u7f13\u51b2\u533a\u7d22\u5f15\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u5bfc\u81f4\u4e3b\u673a\u4e0a\u7684QEMU\u8fdb\u7a0b\u5d29\u6e83\u3002",
  "formalWay": "\u5382\u5546\u5df2\u53d1\u5e03\u4e86\u6f0f\u6d1e\u4fee\u590d\u7a0b\u5e8f\uff0c\u8bf7\u53ca\u65f6\u5173\u6ce8\u66f4\u65b0\uff1a\r\nhttps://lists.nongnu.org/archive/html/qemu-devel/2020-11/msg04685.html",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-06865",
  "openTime": "2021-01-27",
  "patchDescription": "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\r\n\r\nQEMU 5.1.0\u4e2d\u7684hw/ide/atapi.c\u4e2d\u7684ide_atapi_cmd_reply_end\u5b58\u5728\u8d8a\u754c\u8bfb\u8bbf\u95ee\u6f0f\u6d1e\u3002\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u672a\u9a8c\u8bc1\u7f13\u51b2\u533a\u7d22\u5f15\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u5bfc\u81f4\u4e3b\u673a\u4e0a\u7684QEMU\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\u8d8a\u754c\u8bfb\u8bbf\u95ee\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "QEMU QEMU 5.1.0"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2020-29443",
  "serverity": "\u4e2d",
  "submitTime": "2021-01-25",
  "title": "QEMU\u8d8a\u754c\u8bfb\u8bbf\u95ee\u6f0f\u6d1e"
}

CVE-2020-29443 (GCVE-0-2020-29443)

Vulnerability from cvelistv5 – Published: 2021-01-22 07:05 – Updated: 2024-08-04 16:55

Summary

ide_atapi_cmd_reply_end in hw/ide/atapi.c in QEMU 5.1.0 allows out-of-bounds read access because a buffer index is not validated.

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root

References

5 references

URL	Tags
https://lists.nongnu.org/archive/html/qemu-devel/…	x_refsource_MISC
http://www.openwall.com/lists/oss-security/2021/01/18/2	x_refsource_MISC
https://lists.debian.org/debian-lts-announce/2021…	mailing-listx_refsource_MLIST
https://security.netapp.com/advisory/ntap-2021030…	x_refsource_CONFIRM
https://lists.debian.org/debian-lts-announce/2022…	mailing-listx_refsource_MLIST

Show details on NVD website

JSON

To clipboard

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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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CNVD-2021-06865

CVE-2020-29443 (GCVE-0-2020-29443)

Tags

Sightings

Nomenclature

Related by attack behaviour