Vulnerability-Lookup

CNVD-2020-36745

Vulnerability from cnvd - Published: 2020-07-07

Title

QEMU缓冲区溢出漏洞（CNVD-2020-36745）

Description

QEMU（Quick Emulator）是法国法布里斯-贝拉（Fabrice Bellard）软件开发者的一套模拟处理器软件。该软件具有速度快、跨平台等特点。 QEMU 4.1.0版本中的hw/core/loader.c文件的‘rom_copy’函数存在安全漏洞，该漏洞源于程序无法验证两个地址之间的关系。攻击者可利用该漏洞向任意内存位置加载内容，可能执行代码。

Severity

中

Patch Name

QEMU缓冲区溢出漏洞（CNVD-2020-36745）的补丁

Patch Description

Formal description

目前厂商已发布升级补丁以修复漏洞，补丁获取链接： https://git.qemu.org/?p=qemu.git;a=commitdiff;h=e423455c4f23a1a828901c78fe6d03b7dde79319

Reference

https://nvd.nist.gov/vuln/detail/CVE-2020-13765

Impacted products

Name
Qemu QEMU 4.1.0

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2020-13765"
    }
  },
  "description": "QEMU\uff08Quick Emulator\uff09\u662f\u6cd5\u56fd\u6cd5\u5e03\u91cc\u65af-\u8d1d\u62c9\uff08Fabrice Bellard\uff09\u8f6f\u4ef6\u5f00\u53d1\u8005\u7684\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 4.1.0\u7248\u672c\u4e2d\u7684hw/core/loader.c\u6587\u4ef6\u7684\u2018rom_copy\u2019\u51fd\u6570\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7a0b\u5e8f\u65e0\u6cd5\u9a8c\u8bc1\u4e24\u4e2a\u5730\u5740\u4e4b\u95f4\u7684\u5173\u7cfb\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u5411\u4efb\u610f\u5185\u5b58\u4f4d\u7f6e\u52a0\u8f7d\u5185\u5bb9\uff0c\u53ef\u80fd\u6267\u884c\u4ee3\u7801\u3002",
  "formalWay": "\u76ee\u524d\u5382\u5546\u5df2\u53d1\u5e03\u5347\u7ea7\u8865\u4e01\u4ee5\u4fee\u590d\u6f0f\u6d1e\uff0c\u8865\u4e01\u83b7\u53d6\u94fe\u63a5\uff1a\r\nhttps://git.qemu.org/?p=qemu.git;a=commitdiff;h=e423455c4f23a1a828901c78fe6d03b7dde79319",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2020-36745",
  "openTime": "2020-07-07",
  "patchDescription": "QEMU\uff08Quick Emulator\uff09\u662f\u6cd5\u56fd\u6cd5\u5e03\u91cc\u65af-\u8d1d\u62c9\uff08Fabrice Bellard\uff09\u8f6f\u4ef6\u5f00\u53d1\u8005\u7684\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 4.1.0\u7248\u672c\u4e2d\u7684hw/core/loader.c\u6587\u4ef6\u7684\u2018rom_copy\u2019\u51fd\u6570\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7a0b\u5e8f\u65e0\u6cd5\u9a8c\u8bc1\u4e24\u4e2a\u5730\u5740\u4e4b\u95f4\u7684\u5173\u7cfb\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u5411\u4efb\u610f\u5185\u5b58\u4f4d\u7f6e\u52a0\u8f7d\u5185\u5bb9\uff0c\u53ef\u80fd\u6267\u884c\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-2020-36745\uff09\u7684\u8865\u4e01",
  "products": {
    "product": "Qemu QEMU 4.1.0"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2020-13765",
  "serverity": "\u4e2d",
  "submitTime": "2020-06-05",
  "title": "QEMU\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\uff08CNVD-2020-36745\uff09"
}

CVE-2020-13765 (GCVE-0-2020-13765)

Vulnerability from cvelistv5 – Published: 2020-06-04 15:26 – Updated: 2024-08-04 12:25

Summary

rom_copy() in hw/core/loader.c in QEMU 4.0 and 4.1.0 does not validate the relationship between two addresses, which allows attackers to trigger an invalid memory copy operation.

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root Scorecard

References

7 references

URL	Tags
https://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=e…	x_refsource_MISC
https://www.openwall.com/lists/oss-security/2020/…	x_refsource_CONFIRM
https://security.netapp.com/advisory/ntap-2020061…	x_refsource_CONFIRM
https://lists.debian.org/debian-lts-announce/2020…	mailing-listx_refsource_MLIST
https://lists.debian.org/debian-lts-announce/2020…	mailing-listx_refsource_MLIST
https://usn.ubuntu.com/4467-1/	vendor-advisoryx_refsource_UBUNTU
https://github.com/qemu/qemu/commit/4f1c6cb2f9afa…	x_refsource_MISC

Show details on NVD website

JSON

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            "url": "https://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=e423455c4f23a1a828901c78fe6d03b7dde79319"
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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

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.

Action not permitted

CNVD-2020-36745

CVE-2020-13765 (GCVE-0-2020-13765)

Tags

Sightings

Nomenclature

Related by attack behaviour