CVE-2023-28997
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2023-28997
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2023-28997.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2023-28997
- Aliases
-
- GHSA-4p33-rw27-j5fc
- Downstream
- Published
- 2023-04-04T12:42:24.540Z
- Modified
- 2025-11-29T14:11:11.682948Z
- 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: Initialization vector reuse in E2EE allows malicious server admin to break, manipulate, access files
- 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 recover and modify the contents of end-to-end encrypted 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", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/28xxx/CVE-2023-28997.json", "cwe_ids": [ "CWE-323" ] }- References
-
- https://ethz.ch/content/dam/ethz/special-interest/infk/inst-infsec/appliedcrypto/education/theses/report_DanieleCoppola.pdf
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/28xxx/CVE-2023-28997.json
- https://github.com/nextcloud/desktop/pull/5324
- https://github.com/nextcloud/security-advisories/security/advisories/GHSA-4p33-rw27-j5fc
- https://lists.debian.org/debian-lts-announce/2025/09/msg00018.html
- https://nvd.nist.gov/vuln/detail/CVE-2023-28997