CVE-2021-32679 SUSE CVE security@suse.de SUSE Security Team SUSE CVE-2021-32679 Interim 1 10 2025-02-17T00:37:13Z current 2021-07-21T00:56:35Z 2025-02-17T00:37:13Z cve-database/bin/generate-cvrf-cve.pl 2020-12-27T01:00:00Z CVE-2021-32679 Nextcloud Server is a Nextcloud package that handles data storage. In versions prior to 19.0.13, 20.0.11, and 21.0.3, filenames where not escaped by default in controllers using `DownloadResponse`. When a user-supplied filename was passed unsanitized into a `DownloadResponse`, this could be used to trick users into downloading malicious files with a benign file extension. This would show in UI behaviours where Nextcloud applications would display a benign file extension (e.g. JPEG), but the file will actually be downloaded with an executable file extension. The vulnerability is patched in versions 19.0.13, 20.0.11, and 21.0.3. Administrators of Nextcloud instances do not have a workaround available, but developers of Nextcloud apps may manually escape the file name before passing it into `DownloadResponse`. The CVRF data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0). https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/XBA6BUWCG7GXG6XVXJPYJLSFVWJRSYU7/ E-Mail link for openSUSE-SU-2021:1068-1 https://www.suse.com/support/security/rating/ SUSE Security Ratings SUSE Package Hub 12 SUSE Package Hub 15 SP1 SUSE Package Hub 15 SP2 SUSE Package Hub 15 SP3 openSUSE Leap 15.2 openSUSE Leap 15.3 nextcloud-20.0.11-28.1 nextcloud-20.0.11-bp151.3.15.1 nextcloud-20.0.11-bp152.2.9.1 nextcloud-20.0.11-bp153.2.3.1 nextcloud-20.0.11-lp152.3.9.1 nextcloud-apache-20.0.11-28.1 nextcloud-apache-20.0.11-bp151.3.15.1 nextcloud-apache-20.0.11-bp152.2.9.1 nextcloud-apache-20.0.11-bp153.2.3.1 nextcloud-apache-20.0.11-lp152.3.9.1 nextcloud-20.0.11-28.1 as a component of SUSE Package Hub 12 nextcloud-apache-20.0.11-28.1 as a component of SUSE Package Hub 12 nextcloud-20.0.11-bp151.3.15.1 as a component of SUSE Package Hub 15 SP1 nextcloud-apache-20.0.11-bp151.3.15.1 as a component of SUSE Package Hub 15 SP1 nextcloud-20.0.11-bp152.2.9.1 as a component of SUSE Package Hub 15 SP2 nextcloud-apache-20.0.11-bp152.2.9.1 as a component of SUSE Package Hub 15 SP2 nextcloud-20.0.11-bp153.2.3.1 as a component of SUSE Package Hub 15 SP3 nextcloud-apache-20.0.11-bp153.2.3.1 as a component of SUSE Package Hub 15 SP3 nextcloud-20.0.11-lp152.3.9.1 as a component of openSUSE Leap 15.2 nextcloud-apache-20.0.11-lp152.3.9.1 as a component of openSUSE Leap 15.2 nextcloud-20.0.11-bp153.2.3.1 as a component of openSUSE Leap 15.3 nextcloud-apache-20.0.11-bp153.2.3.1 as a component of openSUSE Leap 15.3 Nextcloud Server is a Nextcloud package that handles data storage. In versions prior to 19.0.13, 20.0.11, and 21.0.3, filenames where not escaped by default in controllers using `DownloadResponse`. When a user-supplied filename was passed unsanitized into a `DownloadResponse`, this could be used to trick users into downloading malicious files with a benign file extension. This would show in UI behaviours where Nextcloud applications would display a benign file extension (e.g. JPEG), but the file will actually be downloaded with an executable file extension. The vulnerability is patched in versions 19.0.13, 20.0.11, and 21.0.3. Administrators of Nextcloud instances do not have a workaround available, but developers of Nextcloud apps may manually escape the file name before passing it into `DownloadResponse`. CVE-2021-32679 SUSE Package Hub 12:nextcloud-20.0.11-28.1 SUSE Package Hub 12:nextcloud-apache-20.0.11-28.1 SUSE Package Hub 15 SP1:nextcloud-20.0.11-bp151.3.15.1 SUSE Package Hub 15 SP1:nextcloud-apache-20.0.11-bp151.3.15.1 SUSE Package Hub 15 SP2:nextcloud-20.0.11-bp152.2.9.1 SUSE Package Hub 15 SP2:nextcloud-apache-20.0.11-bp152.2.9.1 SUSE Package Hub 15 SP3:nextcloud-20.0.11-bp153.2.3.1 SUSE Package Hub 15 SP3:nextcloud-apache-20.0.11-bp153.2.3.1 openSUSE Leap 15.2:nextcloud-20.0.11-lp152.3.9.1 openSUSE Leap 15.2:nextcloud-apache-20.0.11-lp152.3.9.1 openSUSE Leap 15.3:nextcloud-20.0.11-bp153.2.3.1 openSUSE Leap 15.3:nextcloud-apache-20.0.11-bp153.2.3.1 important 6.8 AV:N/AC:M/Au:N/C:P/I:P/A:P 8.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H