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CNVD-2020-02979

Vulnerability from cnvd - Published: 2020-01-20

Title

Netwide Assembler缓冲区溢出漏洞（CNVD-2020-02979）

Description

Netwide Assembler（NASM）是一个基于Linux的汇编器。该产品能够创建二进制文件并编写引导加载程序。 Netwide Assembler (NASM) 2.14.02版本中的asm/eval.c文件的expr#函数存在缓冲区溢出漏洞。该漏洞源于网络系统或产品在内存上执行操作时，未正确验证数据边界，导致向关联的其他内存位置上执行了错误的读写操作。攻击者可利用该漏洞导致缓冲区溢出或堆溢出等。

Severity

中

Formal description

目前厂商尚未提供相关漏洞补丁链接，请关注厂商主页随时更新： https://www.nasm.us/

Reference

https://bugzilla.nasm.us/show_bug.cgi?id=3392548#c4 https://bugzilla.nasm.us/show_bug.cgi?id=3392638 https://nvd.nist.gov/vuln/detail/CVE-2019-20334

Impacted products

Name
Netwide Assembler Netwide Assembler 2.14.02

Show details on source website

JSON

To clipboard

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    "cve": {
      "cveNumber": "CVE-2019-20334"
    }
  },
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  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2020-02979",
  "openTime": "2020-01-20",
  "products": {
    "product": "Netwide Assembler Netwide Assembler 2.14.02"
  },
  "referenceLink": "https://bugzilla.nasm.us/show_bug.cgi?id=3392548#c4\r\nhttps://bugzilla.nasm.us/show_bug.cgi?id=3392638\r\nhttps://nvd.nist.gov/vuln/detail/CVE-2019-20334",
  "serverity": "\u4e2d",
  "submitTime": "2020-01-07",
  "title": "Netwide Assembler\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\uff08CNVD-2020-02979\uff09"
}

CVE-2019-20334 (GCVE-0-2019-20334)

Vulnerability from cvelistv5 – Published: 2020-01-04 06:43 – Updated: 2024-08-05 02:39

Summary

In Netwide Assembler (NASM) 2.14.02, stack consumption occurs in expr# functions in asm/eval.c. This potentially affects the relationships among expr0, expr1, expr2, expr3, expr4, expr5, and expr6 (and stdscan in asm/stdscan.c). This is similar to CVE-2019-6290 and CVE-2019-6291.

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root

References

2 references

URL	Tags
https://bugzilla.nasm.us/show_bug.cgi?id=3392638	x_refsource_MISC
https://bugzilla.nasm.us/show_bug.cgi?id=3392548#c4	x_refsource_MISC

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.

Action not permitted

CNVD-2020-02979

CVE-2019-20334 (GCVE-0-2019-20334)

Tags

Sightings

Nomenclature

Related by attack behaviour