Vulnerability-Lookup

CNVD-2020-13469

Vulnerability from cnvd - Published: 2020-02-25

Title

GNU Screen缓冲区溢出漏洞

Description

GNU Screen是一款由GNU计划开发的用于命令行终端切换的自由软件。用户可以通过该软件同时连接多个本地或远程的命令行会话，并在其间自由切换。 GNU Screen 4.8.0之前版本中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

Patch Name

GNU Screen缓冲区溢出漏洞的补丁

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://lists.gnu.org/archive/html/screen-devel/2020-02/msg00007.html

Reference

https://nvd.nist.gov/vuln/detail/CVE-2020-9366

Impacted products

Name
Gnu Screen <4.8.0

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2020-9366"
    }
  },
  "description": "GNU Screen\u662f\u4e00\u6b3e\u7531GNU\u8ba1\u5212\u5f00\u53d1\u7684\u7528\u4e8e\u547d\u4ee4\u884c\u7ec8\u7aef\u5207\u6362\u7684\u81ea\u7531\u8f6f\u4ef6\u3002\u7528\u6237\u53ef\u4ee5\u901a\u8fc7\u8be5\u8f6f\u4ef6\u540c\u65f6\u8fde\u63a5\u591a\u4e2a\u672c\u5730\u6216\u8fdc\u7a0b\u7684\u547d\u4ee4\u884c\u4f1a\u8bdd\uff0c\u5e76\u5728\u5176\u95f4\u81ea\u7531\u5207\u6362\u3002\n\nGNU Screen 4.8.0\u4e4b\u524d\u7248\u672c\u4e2d\u5b58\u5728\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\u3002\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7f51\u7edc\u7cfb\u7edf\u6216\u4ea7\u54c1\u5728\u5185\u5b58\u4e0a\u6267\u884c\u64cd\u4f5c\u65f6\uff0c\u672a\u6b63\u786e\u9a8c\u8bc1\u6570\u636e\u8fb9\u754c\uff0c\u5bfc\u81f4\u5411\u5173\u8054\u7684\u5176\u4ed6\u5185\u5b58\u4f4d\u7f6e\u4e0a\u6267\u884c\u4e86\u9519\u8bef\u7684\u8bfb\u5199\u64cd\u4f5c\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u5bfc\u81f4\u7f13\u51b2\u533a\u6ea2\u51fa\u6216\u5806\u6ea2\u51fa\u7b49\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://lists.gnu.org/archive/html/screen-devel/2020-02/msg00007.html",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2020-13469",
  "openTime": "2020-02-25",
  "patchDescription": "GNU Screen\u662f\u4e00\u6b3e\u7531GNU\u8ba1\u5212\u5f00\u53d1\u7684\u7528\u4e8e\u547d\u4ee4\u884c\u7ec8\u7aef\u5207\u6362\u7684\u81ea\u7531\u8f6f\u4ef6\u3002\u7528\u6237\u53ef\u4ee5\u901a\u8fc7\u8be5\u8f6f\u4ef6\u540c\u65f6\u8fde\u63a5\u591a\u4e2a\u672c\u5730\u6216\u8fdc\u7a0b\u7684\u547d\u4ee4\u884c\u4f1a\u8bdd\uff0c\u5e76\u5728\u5176\u95f4\u81ea\u7531\u5207\u6362\u3002\r\n\r\nGNU Screen 4.8.0\u4e4b\u524d\u7248\u672c\u4e2d\u5b58\u5728\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\u3002\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7f51\u7edc\u7cfb\u7edf\u6216\u4ea7\u54c1\u5728\u5185\u5b58\u4e0a\u6267\u884c\u64cd\u4f5c\u65f6\uff0c\u672a\u6b63\u786e\u9a8c\u8bc1\u6570\u636e\u8fb9\u754c\uff0c\u5bfc\u81f4\u5411\u5173\u8054\u7684\u5176\u4ed6\u5185\u5b58\u4f4d\u7f6e\u4e0a\u6267\u884c\u4e86\u9519\u8bef\u7684\u8bfb\u5199\u64cd\u4f5c\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u5bfc\u81f4\u7f13\u51b2\u533a\u6ea2\u51fa\u6216\u5806\u6ea2\u51fa\u7b49\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": "GNU Screen\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "Gnu Screen \u003c4.8.0"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2020-9366",
  "serverity": "\u4e2d",
  "submitTime": "2020-02-25",
  "title": "GNU Screen\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e"
}

CVE-2020-9366 (GCVE-0-2020-9366)

Vulnerability from cvelistv5 – Published: 2020-02-24 16:20 – Updated: 2024-08-04 10:26

Summary

A buffer overflow was found in the way GNU Screen before 4.8.0 treated the special escape OSC 49. Specially crafted output, or a special program, could corrupt memory and crash Screen or possibly have unspecified other impact.

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root

References

4 references

URL	Tags
https://www.openwall.com/lists/oss-security/2020/…	x_refsource_MISC
https://lists.gnu.org/archive/html/screen-devel/2…	x_refsource_MISC
http://www.openwall.com/lists/oss-security/2020/02/25/1	mailing-listx_refsource_MLIST
https://security.gentoo.org/glsa/202003-62	vendor-advisoryx_refsource_GENTOO

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.

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Action not permitted

CNVD-2020-13469

CVE-2020-9366 (GCVE-0-2020-9366)

Tags

Sightings

Nomenclature

Related by attack behaviour