Vulnerability-Lookup

CNVD-2020-47039

Vulnerability from cnvd - Published: 2020-08-20

Title

QEMU路径遍历漏洞（CNVD-2020-47039）

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的ATI VGA设备的ati_2d_blt()中存在路径遍历漏洞，该漏洞源于网络系统或产品未能正确地过滤资源或文件路径中的特殊元素，攻击者可利用该漏洞造成QEMU进程崩溃。

Severity

中

Formal description

厂商尚未提供漏洞修复方案，请关注厂商主页更新： https://www.qemu.org/

Reference

https://access.redhat.com/security/cve/cve-2020-24352

Impacted products

Name
QEMU QEMU

Show details on source website

JSON

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    "cve": {
      "cveNumber": "CVE-2020-24352",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2020-24352"
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  "formalWay": "\u5382\u5546\u5c1a\u672a\u63d0\u4f9b\u6f0f\u6d1e\u4fee\u590d\u65b9\u6848\uff0c\u8bf7\u5173\u6ce8\u5382\u5546\u4e3b\u9875\u66f4\u65b0\uff1a\r\nhttps://www.qemu.org/",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2020-47039",
  "openTime": "2020-08-20",
  "products": {
    "product": "QEMU QEMU"
  },
  "referenceLink": "https://access.redhat.com/security/cve/cve-2020-24352",
  "serverity": "\u4e2d",
  "submitTime": "2020-08-17",
  "title": "QEMU\u8def\u5f84\u904d\u5386\u6f0f\u6d1e\uff08CNVD-2020-47039\uff09"
}

CVE-2020-24352 (GCVE-0-2020-24352)

Vulnerability from cvelistv5 – Published: 2020-10-16 05:05 – Updated: 2024-08-04 15:12

Summary

An issue was discovered in QEMU through 5.1.0. An out-of-bounds memory access was found in the ATI VGA device implementation. This flaw occurs in the ati_2d_blt() routine in hw/display/ati_2d.c while handling MMIO write operations through the ati_mm_write() callback. A malicious guest could use this flaw to crash the QEMU process on the host, resulting in a denial of service.

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root

References

3 references

URL	Tags
https://git.qemu.org/?p=qemu.git	x_refsource_MISC
https://bugzilla.redhat.com/show_bug.cgi?id=1847584	x_refsource_MISC
https://security.netapp.com/advisory/ntap-2020112…	x_refsource_CONFIRM

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.

Detection rules are retrieved from Rulezet.

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.