CVE-2021-32921
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2021-32921
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2021-32921.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2021-32921
- Downstream
- Published
- 2021-05-13T16:15:08Z
- Modified
- 2025-08-09T20:01:26Z
- Severity
-
- 5.9 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N CVSS Calculator
- Summary
- [none]
- Details
-
An issue was discovered in Prosody before 0.11.9. It does not use a constant-time algorithm for comparing certain secret strings when running under Lua 5.2 or later. This can potentially be used in a timing attack to reveal the contents of secret strings to an attacker.
- References
-
- http://www.openwall.com/lists/oss-security/2021/05/13/1
- http://www.openwall.com/lists/oss-security/2021/05/14/2
- https://blog.prosody.im/prosody-0.11.9-released/
- https://lists.debian.org/debian-lts-announce/2021/06/msg00016.html
- https://lists.debian.org/debian-lts-announce/2021/06/msg00018.html
- https://security.gentoo.org/glsa/202105-15
- https://www.debian.org/security/2021/dsa-4916
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6MFFBZWXKPZEVZNQSVJNCUE7WRF3T7DG/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GUN63AHEWB2WRROJHU3BVJRWLONCT2B7/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LWJ2DG2DFJOEFEWOUN26IMYYWGSA2ZEE/