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CVE-2019-7307— Apport contains a TOCTTOU vulnerability when reading the users ~/.apport-ignore.xml

Quick assessment

Affected
Ubuntu 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中存在竞争条件问题漏洞。攻击者可利用该漏洞获取崩溃报告中的敏感信息。

AI Predicted 5.9 Difficulty: Easy EPSS 0.31% · P24
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I. Basic Information for CVE-2019-7307

Vulnerability Information
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Vulnerability Title
Apport contains a TOCTTOU vulnerability when reading the users ~/.apport-ignore.xml
Source: CVE Program / CVE List V5
Vulnerability Description
Apport before versions 2.14.1-0ubuntu3.29+esm1, 2.20.1-0ubuntu2.19, 2.20.9-0ubuntu7.7, 2.20.10-0ubuntu27.1, 2.20.11-0ubuntu5 contained a TOCTTOU vulnerability when reading the users ~/.apport-ignore.xml file, which allows a local attacker to replace this file with a symlink to any other file on the system and so cause Apport to include the contents of this other file in the resulting crash report. The crash report could then be read by that user either by causing it to be uploaded and reported to Launchpad, or by leveraging some other vulnerability to read the resulting crash report, and so allow the user to read arbitrary files on the system.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
检查时间与使用时间(TOCTOU)的竞争条件
Source: CVE Program / CVE List V5
Vulnerability Title
Apport 竞争条件问题漏洞
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中存在竞争条件问题漏洞。攻击者可利用该漏洞获取崩溃报告中的敏感信息。
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
Ubuntu apport before 2.14.1-0ubuntu3.29+esm1 -

II. Public POCs for CVE-2019-7307

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III. Intelligence Information for CVE-2019-7307

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Exploits & Public PoCs for CVE-2019-7307 (1)

Other References for CVE-2019-7307 (1)

IV. Related Vulnerabilities

Same product: apport
Same vendor: Ubuntu
Same weakness: CWE-367

V. Comments for CVE-2019-7307

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