CVE-2023-28998

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Source
https://cve.org/CVERecord?id=CVE-2023-28998
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-28998.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2023-28998
Aliases
  • GHSA-jh3g-wpwv-cqgr
Downstream
Published
2023-04-04T12:45:42Z
Modified
2026-10-21T02:48:08Z
Severity
  • 6.7 (Medium) CVSS_V3 - CVSS:3.1/AV:P/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:N CVSS Calculator
Summary
Nextcloud Desktop client misbehaves with E2EE when the server returns empty list of metadata keys
Details

The Nextcloud Desktop Client is a tool to synchronize files from Nextcloud Server. Starting with version 3.0.0 and prior to version 3.6.5, a malicious server administrator can gain full access to an end-to-end encrypted folder. They can decrypt files, recover the folder structure, and add new files.​ Users should upgrade the Nextcloud Desktop client to 3.6.5 to receive a patch. No known workarounds are available.

Database specific 
{
    "cna_assigner":  "GitHub_M",
    "cwe_ids":  [
        "CWE-325"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/28xxx/CVE-2023-28998.json"
}
References

Affected packages

Git / github.com/nextcloud/desktop

Affected ranges

Type
GIT
Repo
https://github.com/nextcloud/desktop
Events
Introduced
ff175088a391007b66bfca89ef35cf29e37cf001
Fixed
b128a778253de91443de5f57f2421963515cd469
Database specific
Show details 
{
    "extracted_events":  [
        {
            "range":  [
                {
                    "introduced":  "3.0.0"
                },
                {
                    "fixed":  "3.6.5"
                }
            ],
            "source":  "AFFECTED_FIELD",
            "strategy":  "StringRangeExpression"
        },
        {
            "cpe":  "cpe:2.3:a:nextcloud:desktop:*:*:*:*:*:*:*:*",
            "range":  [
                {
                    "introduced":  "3.0.0"
                },
                {
                    "fixed":  "3.6.5"
                }
            ],
            "source":  "CPE_RANGE"
        }
    ]
}

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-28998.json"