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CVSSv2

CVE-2021-32728

Published: 18/08/2021 Updated: 04/10/2022
CVSS v2 Base Score: 4 | Impact Score: 2.9 | Exploitability Score: 8
CVSS v3 Base Score: 6.5 | Impact Score: 3.6 | Exploitability Score: 2.8
VMScore: 356
Vector: AV:N/AC:L/Au:S/C:P/I:N/A:N
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Vulnerability Summary

The Nextcloud Desktop Client is a tool to synchronize files from Nextcloud Server with a computer. Clients using the Nextcloud end-to-end encryption feature download the public and private key via an API endpoint. In versions before 3.3.0, the Nextcloud Desktop client fails to check if a private key belongs to previously downloaded public certificate. If the Nextcloud instance serves a malicious public key, the data would be encrypted for this key and thus could be accessible to a malicious actor. This issue is fixed in Nextcloud Desktop Client version 3.3.0. There are no known workarounds aside from upgrading.

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nextcloud desktop

debian debian linux 10.0

debian debian linux 11.0

Vendor Advisories

Debian Security Advisories: DSA-4974-1 nextcloud-desktop -- security update
Two vulnerabilities were discovered in the Nextcloud desktop client, which could result in information disclosure For the oldstable distribution (buster), these problems have been fixed in version 251-3+deb10u2 For the stable distribution (bullseye), these problems have been fixed in version 311-2+deb11u1 We recommend that you upgrade your n ...

References

CWE-295https://github.com/nextcloud/security-advisories/security/advisories/GHSA-f5fr-5gcv-6cc5https://github.com/nextcloud/desktop/pull/3338https://hackerone.com/reports/1189162https://www.debian.org/security/2021/dsa-4974https://nvd.nist.govhttps://www.debian.org/security/2021/dsa-4974
CVSSv2
CVSSv2
CVSSv3
VMScore
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CVE-2024-26925CVE-2023-41826LFICVE-2022-22364CVE-2024-2887command injectionremote code executionCVE-2024-34446CVE-2022-48699
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