[SECURITY] [DLA 4303-1] nextcloud-desktop security update
[SECURITY] [DLA 4303-1] nextcloud-desktop security update
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Debian LTS Advisory DLA-4303-1 debian-lts@lists.debian.org
https://www.debian.org/lts/security/ Abhijith PA
September 18, 2025 https://wiki.debian.org/LTS
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Package : nextcloud-desktop
Version : 3.1.1-2+deb11u2
CVE ID : CVE-2022-39331 CVE-2022-39332 CVE-2022-39333 CVE-2022-39334
CVE-2023-28997
Multiple vulnerabilities were discovered in nextcloud-desktop,
nextcloud folder synchronization tool.
CVE-2022-39331
An attacker can inject arbitrary HyperText Markup Language into
the Desktop Client application in the notifications.
CVE-2022-39332
An attacker can inject arbitrary HyperText Markup Language into
the Desktop Client application via user status and information.
CVE-2022-39333
An attacker can inject arbitrary HyperText Markup Language into
the Desktop Client application.
CVE-2022-39334
A CLI utility called nextcloudcmd which is sometimes used for
automated scripting and headless servers would incorrectly trust
invalid TLS certificates, which may enable a Man-in-the-middle
attack that exposes sensitive data or credentials to a network
attacker.
CVE-2023-28997
A malicious server administrator can recover and modify the
contents of end-to-end encrypted files.
For Debian 11 bullseye, these problems have been fixed in version
3.1.1-2+deb11u2.
For Debian 11 bullseye, these problems have been fixed in version
3.1.1-2+deb11u2.
We recommend that you upgrade your nextcloud-desktop packages.
For the detailed security status of nextcloud-desktop please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/nextcloud-desktop
Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS
