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CVE-2021-41256

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Date: November 30, 2021

nextcloud news-android is an Android client for the Nextcloud news/feed reader app. In affected versions the Nextcloud News for Android app has a security issue by which a malicious application installed on the same device can send it an arbitrary Intent that gets reflected back, unintentionally giving read and write access to non-exported Content Providers in Nextcloud News for Android. Users should upgrade to version 0.9.9.63 or higher as soon as possible.

Language: Java

Severity Score

Related Resources (5)

https://github.com/nextcloud/news-android/commit/05449cb666059af7de2302df9d5c02997a23df85
https://github.com/nextcloud/news-android/blob/master/security/GHSL-2021-1033_Nextcloud_News_for_Android.md
https://nvd.nist.gov/vuln/detail/CVE-2021-41256
https://github.com/nextcloud/news-android/security/advisories/GHSA-2q9v-q3cc-h9f3
https://www.mend.io/vulnerability-database/CVE-2021-41256

Severity Score

Weakness Type (CWE)

Inclusion of Functionality from Untrusted Control Sphere

CWE-829

Top Fix

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CVSS v3.1

Base Score:
Attack Vector (AV): LOCAL
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): REQUIRED
Scope (S): UNCHANGED
Confidentiality (C): HIGH
Integrity (I): HIGH
Availability (A): NONE

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): MEDIUM
Authentication (AU): NONE
Confidentiality (C): PARTIAL
Integrity (I): PARTIAL
Availability (A): NONE
Additional information:

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