Vulnerability-Lookup

CNVD-2020-47579

Vulnerability from cnvd - Published: 2020-08-22

Title

Apport竞争条件问题漏洞

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。 Apport中存在竞争条件问题漏洞。本地攻击者可利用该漏洞提升权限并执行任意代码。

Severity

中

Patch Name

Apport竞争条件问题漏洞的补丁

Patch 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。 Apport中存在竞争条件问题漏洞。本地攻击者可利用该漏洞提升权限并执行任意代码。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

厂商已发布了漏洞修复程序，请及时关注更新： https://ubuntu.com/security/notices/USN-4449-1

Reference

https://vigilance.fr/vulnerability/Apport-privilege-escalation-via-Check-Bypass-33001

Impacted products

Name
Apport Apport

Show details on source website

JSON

To clipboard

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    "cve": {
      "cveNumber": "CVE-2020-15702",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2020-15702"
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  "number": "CNVD-2020-47579",
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  "serverity": "\u4e2d",
  "submitTime": "2020-08-06",
  "title": "Apport\u7ade\u4e89\u6761\u4ef6\u95ee\u9898\u6f0f\u6d1e"
}

CVE-2020-15702 (GCVE-0-2020-15702)

Vulnerability from cvelistv5 – Published: 2020-08-06 22:50 – Updated: 2025-11-03 19:25

Title

TOCTOU in apport

Summary

TOCTOU Race Condition vulnerability in apport allows a local attacker to escalate privileges and execute arbitrary code. An attacker may exit the crashed process and exploit PID recycling to spawn a root process with the same PID as the crashed process, which can then be used to escalate privileges. Fixed in 2.20.1-0ubuntu2.24, 2.20.9 versions prior to 2.20.9-0ubuntu7.16 and 2.20.11 versions prior to 2.20.11-0ubuntu27.6. Was ZDI-CAN-11234.

Severity

7 (High)


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

CWE

CWE-367 - Time-of-check Time-of-use (TOCTOU) Race Condition

Assigner

canonical mitre root

References

5 references

URL	Tags
https://usn.ubuntu.com/4449-1	x_refsource_CONFIRM
https://usn.ubuntu.com/4449-1/	vendor-advisoryx_refsource_UBUNTU
https://www.zerodayinitiative.com/advisories/ZDI-…	x_refsource_MISC
https://usn.ubuntu.com/4449-2/	vendor-advisoryx_refsource_UBUNTU
http://seclists.org/fulldisclosure/2025/Jun/9

Impacted products

1 product

Vendor	Product	Version
Canonical	apport	Affected: 2.20.1 , < 2.20.1-0ubuntu2.24 (custom) Affected: 2.20.9 , < 2.20.9-0ubuntu7.16 (custom) Affected: 2.20.11 , < 2.20.11-0ubuntu27.6 (custom)

Date Public

2020-08-04 00:00

Credits

Ryota Shiga

Show details on NVD website

JSON

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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.