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CVE-2019-11482— Race condition between reading current working directory and writing a core dump

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。攻击者可利用该漏洞获取特权进程崩溃的报告。

CVSS 4.2 · Medium EPSS 0.23% · P13

Possible ATT&CK Techniques 1 AI

T1083 · File and Directory Discovery
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I. Basic Information for CVE-2019-11482

Vulnerability Information
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Vulnerability Title
Race condition between reading current working directory and writing a core dump
Source: CVE Program / CVE List V5
Vulnerability Description
Sander Bos discovered a time of check to time of use (TOCTTOU) vulnerability in apport that allowed a user to cause core files to be written in arbitrary directories.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:N/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
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。攻击者可利用该漏洞获取特权进程崩溃的报告。
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-2019-11482

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III. Intelligence Information for CVE-2019-11482

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Vendor Advisories for CVE-2019-11482 (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-2019-11481 3.8 LOW Apport reads arbitrary files if ~/.config/apport/settings is a symlink
CVE-2019-11485 3.3 LOW apport created lock file in wrong directory

IV. Related Vulnerabilities

Same product: apport
Same vendor: Canonical

V. Comments for CVE-2019-11482

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