{"document":{"aggregate_severity":{"namespace":"https://www.suse.com/support/security/rating/","text":"important"},"category":"csaf_vex","csaf_version":"2.0","distribution":{"text":"Copyright 2024 SUSE LLC. All rights reserved.","tlp":{"label":"WHITE","url":"https://www.first.org/tlp/"}},"lang":"en","notes":[{"category":"summary","text":"SUSE CVE-2021-32679","title":"Title"},{"category":"description","text":"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`.","title":"Description of the CVE"},{"category":"legal_disclaimer","text":"CSAF 2.0 data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0).","title":"Terms of use"}],"publisher":{"category":"vendor","contact_details":"https://www.suse.com/support/security/contact/","name":"SUSE Product Security Team","namespace":"https://www.suse.com/"},"references":[{"category":"external","summary":"CVE-2021-32679","url":"https://www.suse.com/security/cve/CVE-2021-32679"},{"category":"external","summary":"SUSE Security Ratings","url":"https://www.suse.com/support/security/rating/"},{"category":"external","summary":"SUSE Bug 1188248 for CVE-2021-32679","url":"https://bugzilla.suse.com/1188248"},{"category":"external","summary":"Advisory link for 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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`.","title":"CVE description"}],"product_status":{"recommended":["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"]},"references":[{"category":"external","summary":"CVE-2021-32679","url":"https://www.suse.com/security/cve/CVE-2021-32679"},{"category":"external","summary":"SUSE Security Ratings","url":"https://www.suse.com/support/security/rating/"},{"category":"external","summary":"SUSE Bug 1188248 for CVE-2021-32679","url":"https://bugzilla.suse.com/1188248"},{"category":"external","summary":"Advisory link for openSUSE-SU-2021:1068-1","url":"https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/XBA6BUWCG7GXG6XVXJPYJLSFVWJRSYU7/"}],"remediations":[{"category":"vendor_fix","details":"To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or \"zypper patch\".\n","product_ids":["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"]}],"scores":[{"cvss_v3":{"baseScore":8.8,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","version":"3.1"},"products":["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"]}],"threats":[{"category":"impact","date":"2021-11-07T12:15:12Z","details":"important"}],"title":"CVE-2021-32679"}]}