CVE-2021-32728

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Source
https://cve.org/CVERecord?id=CVE-2021-32728
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2021-32728.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2021-32728
Aliases
  • GHSA-f5fr-5gcv-6cc5
Downstream
Published
2021-08-18T16:15:07.293Z
Modified
2026-06-18T03:54:29.289770999Z
Severity
  • 6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N CVSS Calculator
Summary
[none]
Details

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 prior to 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.

Database specific 
{
    "unresolved_ranges": [
        {
            "vendor_product": "debian:debian_linux",
            "extracted_events": [
                {
                    "last_affected": "10.0"
                },
                {
                    "last_affected": "11.0"
                }
            ],
            "source": "CPE_STRING",
            "cpes": [
                "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*",
                "cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*"
            ]
        }
    ]
}
References

Affected packages

Git / github.com/nextcloud/desktop

Affected ranges

Type
GIT
Repo
https://github.com/nextcloud/desktop
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
acf3bf0959fc83393b71fbeed5b7633cab0f0d9d
Database specific 
{
    "cpe": "cpe:2.3:a:nextcloud:desktop:*:*:*:*:*:*:*:*",
    "source": "CPE_RANGE",
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "3.3.0"
        }
    ]
}

Affected versions

v0.*
v0.0.2
v1.*
v1.1.0
v1.1.0-beta1
v1.1.2
v1.2.0
v1.2.1
v1.2.2
v1.2.3
v1.2.4
v1.2.5
v1.3.0-beta1
v1.3.0-beta2
v1.3.0-beta3
v1.4.0
v1.4.0-beta1
v1.4.0-beta2
v1.4.0-rc1
v1.5.0
v1.5.0-beta1
v1.5.0-beta1-2nd
v1.5.0-beta2
v1.5.0-beta3
v1.5.1-rc1
v1.6.0
v1.6.0-beta1
v1.6.0-beta2
v1.6.0-rc1
v1.6.0-rc2
v1.6.0-rc3
v1.8.0-beta1
v1.8.0-beta1a
v2.*
v2.5.0
v2.5.0-beta1
v2.5.0-beta2
v2.5.0-rc1
v2.5.0-rc2
v2.5.1
v2.5.2
v2.5.2-rc1
v2.5.3-rc1
v2.5.3-rc2
v2.7.0-beta1
v2.7.0-beta2
v2.7.0-beta3
v2.7.0-rc1
v3.*
v3.1.0
v3.1.0-rc1
v3.1.0-rc2
v3.2.0-rc1
v3.2.0-rc2
v3.2.0-rc3
v3.3.0-rc1
v3.3.0-rc2

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2021-32728.json"