Vulnerability-Lookup

CNVD-2021-57436

Vulnerability from cnvd - Published: 2021-07-30

Title

Ubuntu Apport后置链接漏洞（CNVD-2021-57436）

Description

Apport是一款用于收集并反馈错误信息（当应用程序崩溃时操作系统认为有用的信息）的工具包。 Ubuntu Apport 中存在安全漏洞，该漏洞源于Apport错误地处理了某些信息收集操作，攻击者可利用该漏洞可以使用这些问题作为管理员读写任意文件。

Severity

低

Formal description

目前厂商暂未发布修复措施解决此安全问题，建议使用此软件的用户随时关注厂商主页或参考网址以获取解决办法： https://ubuntu.com/

Reference

https://bugs.launchpad.net/ubuntu/+source/apport/+bug/1917904

Impacted products

Name
['Apport Ubuntu Apport 14.04 ESM', 'Apport Ubuntu Apport 16.04 ESM']

Show details on source website

JSON

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{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2021-32551",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2021-32551"
    }
  },
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  "formalWay": "\u76ee\u524d\u5382\u5546\u6682\u672a\u53d1\u5e03\u4fee\u590d\u63aa\u65bd\u89e3\u51b3\u6b64\u5b89\u5168\u95ee\u9898\uff0c\u5efa\u8bae\u4f7f\u7528\u6b64\u8f6f\u4ef6\u7684\u7528\u6237\u968f\u65f6\u5173\u6ce8\u5382\u5546\u4e3b\u9875\u6216\u53c2\u8003\u7f51\u5740\u4ee5\u83b7\u53d6\u89e3\u51b3\u529e\u6cd5\uff1a\r\nhttps://ubuntu.com/",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-57436",
  "openTime": "2021-07-30",
  "products": {
    "product": [
      "Apport Ubuntu Apport 14.04 ESM",
      "Apport Ubuntu Apport 16.04 ESM"
    ]
  },
  "referenceLink": "https://bugs.launchpad.net/ubuntu/+source/apport/+bug/1917904",
  "serverity": "\u4f4e",
  "submitTime": "2021-07-23",
  "title": "Ubuntu Apport\u540e\u7f6e\u94fe\u63a5\u6f0f\u6d1e\uff08CNVD-2021-57436\uff09"
}

CVE-2021-32551 (GCVE-0-2021-32551)

Vulnerability from cvelistv5 – Published: 2021-06-12 03:40 – Updated: 2024-09-16 20:21

Title

apport read_file() function could follow maliciously constructed symbolic links

Summary

It was discovered that read_file() in apport/hookutils.py would follow symbolic links or open FIFOs. When this function is used by the openjdk-15 package apport hooks, it could expose private data to other local users.

Severity

7.3 (High)


                        
                          CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:L

CWE

CWE-59 - Improper Link Resolution Before File Access ('Link Following')
CWE-61 - UNIX Symbolic Link (Symlink) Following

Assigner

canonical mitre root

References

1 reference

URL	Tags
https://bugs.launchpad.net/ubuntu/+source/apport/…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
Canonical	apport	Affected: 2.20.1 , < 2.20.1-0ubuntu2.30+esm1 (custom) Affected: 2.20.9 , < 2.20.9-0ubuntu7.24 (custom) Affected: 2.20.11-0ubuntu27 , < 2.20.11-0ubuntu27.18 (custom) Affected: 2.20.11-0ubuntu50 , < 2.20.11-0ubuntu50.7 (custom) Affected: 2.20.11-0ubuntu65 , < 2.20.11-0ubuntu65.1 (custom) Affected: 2.14.1-0ubuntu3 , < 2.14.1-0ubuntu3.29+esm7 (custom)

Date Public

2021-05-25 00:00

Credits

maik@secfault-security.com (@fktio)

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.