UBUNTU-CVE-2021-32921
- Source
- https://ubuntu.com/security/CVE-2021-32921
- Import Source
- https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-32921.json
- JSON Data
- https://api.osv.dev/v1/vulns/UBUNTU-CVE-2021-32921
- Related
- Published
- 2021-05-13T16:15:00Z
- Modified
- 2025-01-13T10:22:33Z
- 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
-
- https://ubuntu.com/security/CVE-2021-32921
- https://www.openwall.com/lists/oss-security/2021/05/13/1
- https://prosody.im/security/advisory_20210512.txt
- https://hg.prosody.im/trunk/rev/c98aebe601f9
- https://hg.prosody.im/trunk/rev/13b84682518e
- https://hg.prosody.im/trunk/rev/6f56170ea986
- https://blog.prosody.im/prosody-0.11.9-released/
- https://www.cve.org/CVERecord?id=CVE-2021-32921
Affected packages
Ubuntu:Pro:16.04:LTS / prosody
Package
- Name
- prosody
- Purl
- pkg:deb/ubuntu/prosody@0.9.10-1?arch=source&distro=esm-apps/xenial
Ubuntu:Pro:18.04:LTS / prosody
Package
- Name
- prosody
- Purl
- pkg:deb/ubuntu/prosody@0.10.0-1ubuntu0.1~esm1?arch=source&distro=esm-apps/bionic
Ubuntu:20.04:LTS / prosody
Package
- Name
- prosody
- Purl
- pkg:deb/ubuntu/prosody@0.11.4-1?arch=source&distro=focal