Vulnerability-Lookup

CNVD-2020-20723

Vulnerability from cnvd - Published: 2020-04-01

Title

WeeChat缓冲区溢出漏洞（CNVD-2020-20723）

Description

WeeChat是一款可扩展的即时聊天客户端应用程序。 WeeChat 0.3.4版本至2.7版本中存在缓冲区溢出漏洞。攻击者可利用该漏洞造成拒绝服务（崩溃）或执行任意代码。

Severity

高

Patch Name

WeeChat缓冲区溢出漏洞（CNVD-2020-20723）的补丁

Patch Description

WeeChat是一款可扩展的即时聊天客户端应用程序。 WeeChat 0.3.4版本至2.7版本中存在缓冲区溢出漏洞。攻击者可利用该漏洞造成拒绝服务（崩溃）或执行任意代码。目前，供应商发布了安全公告及相关补丁信息，修复了此漏洞。

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://weechat.org/doc/security/

Impacted products

Name
WeeChat WeeChat >=0.3.4，<=2.7

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2020-9760"
    }
  },
  "description": "WeeChat\u662f\u4e00\u6b3e\u53ef\u6269\u5c55\u7684\u5373\u65f6\u804a\u5929\u5ba2\u6237\u7aef\u5e94\u7528\u7a0b\u5e8f\u3002\n\nWeeChat 0.3.4\u7248\u672c\u81f32.7\u7248\u672c\u4e2d\u5b58\u5728\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u62d2\u7edd\u670d\u52a1\uff08\u5d29\u6e83\uff09\u6216\u6267\u884c\u4efb\u610f\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://weechat.org/doc/security/",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2020-20723",
  "openTime": "2020-04-01",
  "patchDescription": "WeeChat\u662f\u4e00\u6b3e\u53ef\u6269\u5c55\u7684\u5373\u65f6\u804a\u5929\u5ba2\u6237\u7aef\u5e94\u7528\u7a0b\u5e8f\u3002\r\n\r\nWeeChat 0.3.4\u7248\u672c\u81f32.7\u7248\u672c\u4e2d\u5b58\u5728\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u62d2\u7edd\u670d\u52a1\uff08\u5d29\u6e83\uff09\u6216\u6267\u884c\u4efb\u610f\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": "WeeChat\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\uff08CNVD-2020-20723\uff09\u7684\u8865\u4e01",
  "products": {
    "product": "WeeChat WeeChat \u003e=0.3.4\uff0c\u003c=2.7"
  },
  "serverity": "\u9ad8",
  "submitTime": "2020-03-24",
  "title": "WeeChat\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\uff08CNVD-2020-20723\uff09"
}

CVE-2020-9760 (GCVE-0-2020-9760)

Vulnerability from cvelistv5 – Published: 2020-03-23 15:39 – Updated: 2024-08-04 10:43

Summary

An issue was discovered in WeeChat before 2.7.1 (0.3.4 to 2.7 are affected). When a new IRC message 005 is received with longer nick prefixes, a buffer overflow and possibly a crash can happen when a new mode is set for a nick.

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root

References

5 references

URL	Tags
https://weechat.org/doc/security/	x_refsource_MISC
https://github.com/weechat/weechat/commit/40ccacb…	x_refsource_MISC
https://lists.debian.org/debian-lts-announce/2020…	mailing-listx_refsource_MLIST
https://security.gentoo.org/glsa/202003-51	vendor-advisoryx_refsource_GENTOO
https://lists.debian.org/debian-lts-announce/2021…	mailing-listx_refsource_MLIST

Show details on NVD website

JSON

To clipboard

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            "url": "https://github.com/weechat/weechat/commit/40ccacb4330a64802b1f1e28ed9a6b6d3ca9197f"
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            "name": "GLSA-202003-51",
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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.