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CVE-2021-32655

Status Candidate

Overview

Nextcloud Server is a Nextcloud package that handles data storage. In versions prior to 19.0.11, 20.0.10, and 21.0.2, an attacker is able to convert a Files Drop link to a federated share. This causes an issue on the UI side of the sharing user. When the sharing user opens the sharing panel and tries to remove the "Create" privileges of this unexpected share, Nextcloud server would silently grant the share read privileges. The vulnerability is patched in versions 19.0.11, 20.0.10 and 21.0.2. No workarounds are known to exist.

Related Files

Gentoo Linux Security Advisory 202208-17
Posted Aug 11, 2022
Authored by Gentoo | Site security.gentoo.org

Gentoo Linux Security Advisory 202208-17 - Multiple vulnerabilities have been found in Nextcloud, the worst of which could result in denial of service. Versions less than 23.0.4 are affected.

tags | advisory, denial of service, vulnerability
systems | linux, gentoo
advisories | CVE-2021-32653, CVE-2021-32654, CVE-2021-32655, CVE-2021-32656, CVE-2021-32657, CVE-2021-32678, CVE-2021-32679, CVE-2021-32680, CVE-2021-32688, CVE-2021-32703, CVE-2021-32705, CVE-2021-32725, CVE-2021-32726, CVE-2021-32734
SHA-256 | c69af16218621a3f77f3c2b2373b447bda23b4a8331cfede05cc8ed67f5e8034
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