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CVE-2019-11485— apport created lock file in wrong directory

Quick assessment

Affected
Canonical apport
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

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中存在安全漏洞。该漏洞源于程序错误创建锁定文件。攻击者可利用该漏洞造成拒绝服务。

CVSS 3.3 · Low EPSS 0.26% · P16

Possible ATT&CK Techniques 1 AI

T1496 · Resource Hijacking
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I. Basic Information for CVE-2019-11485

Vulnerability Information
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Vulnerability Title
apport created lock file in wrong directory
Source: CVE Program / CVE List V5
Vulnerability Description
Sander Bos discovered Apport's lock file was in a world-writable directory which allowed all users to prevent crash handling.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
未加限制的外部可访问锁
Source: CVE Program / CVE List V5
Vulnerability Title
Apport 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability 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中存在安全漏洞。该漏洞源于程序错误创建锁定文件。攻击者可利用该漏洞造成拒绝服务。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Canonical apport 2.14.1 ~ 2.14.1-0ubuntu3.29+esm2 -

II. Public POCs for CVE-2019-11485

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III. Intelligence Information for CVE-2019-11485

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Vendor Advisories for CVE-2019-11485 (2)

Same Patch Batch · Canonical · 2020-02-08 · 5 CVEs total

CVE-2019-11483 7.0 HIGH Apport 安全漏洞
CVE-2019-11484 6.3 MEDIUM Integer overflow in bson_ensure_space
CVE-2019-11482 4.2 MEDIUM Race condition between reading current working directory and writing a core dump
CVE-2019-11481 3.8 LOW Apport reads arbitrary files if ~/.config/apport/settings is a symlink

IV. Related Vulnerabilities

Same product: apport
Same vendor: Canonical
Same weakness: CWE-412

V. Comments for CVE-2019-11485

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