CVE-2021-32921

CVSS V2 Medium 4.3 CVSS V3 Medium 5.9
Description
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.
Overview
  • CVE ID
  • CVE-2021-32921
  • Assigner
  • cve@mitre.org
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2021-05-13T16:15:08
  • Last Modified Date
  • 2022-05-16T19:50:34
Weakness Enumerations
CWE URL
CWE-362 http://cwe.mitre.org/data/definitions/362.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
AND
cpe:2.3:a:prosody:prosody:*:*:*:*:*:*:*:* 1 OR 0.11.9
cpe:2.3:a:lua:lua:*:*:*:*:*:*:*:* 0 OR 5.2.0
AND
cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:* 1 OR
AND
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* 1 OR
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:N/AC:M/Au:N/C:P/I:N/A:N
  • Access Vector
  • NETWORK
  • Access Compatibility
  • MEDIUM
  • Authentication
  • NONE
  • Confidentiality Impact
  • PARTIAL
  • Integrity Impact
  • NONE
  • Availability Impact
  • NONE
  • Base Score
  • 4.3
  • Severity
  • MEDIUM
  • Exploitability Score
  • 8.6
  • Impact Score
  • 2.9
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
  • Attack Vector
  • NETWORK
  • Attack Compatibility
  • HIGH
  • Privileges Required
  • NONE
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • HIGH
  • Availability Impact
  • NONE
  • Base Score
  • 5.9
  • Base Severity
  • MEDIUM
  • Exploitability Score
  • 2.2
  • Impact Score
  • 3.6
References
Reference URL Reference Tags
https://blog.prosody.im/prosody-0.11.9-released/ Release Notes Vendor Advisory
http://www.openwall.com/lists/oss-security/2021/05/13/1 Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2021/05/14/2 Mailing List Mitigation Third Party Advisory
https://www.debian.org/security/2021/dsa-4916 Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/6MFFBZWXKPZEVZNQSVJNCUE7WRF3T7DG/ Mailing List Third Party Advisory
https://security.gentoo.org/glsa/202105-15 Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GUN63AHEWB2WRROJHU3BVJRWLONCT2B7/ Mailing List Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/LWJ2DG2DFJOEFEWOUN26IMYYWGSA2ZEE/ Mailing List Third Party Advisory
https://lists.debian.org/debian-lts-announce/2021/06/msg00016.html Mailing List Third Party Advisory
https://lists.debian.org/debian-lts-announce/2021/06/msg00018.html
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2021-32921
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-32921
History
Created Old Value New Value Data Type Notes
2022-05-10 07:10:48 Added to TrackCVE
2022-12-05 02:14:21 2021-05-13T16:15Z 2021-05-13T16:15:08 CVE Published Date updated
2022-12-05 02:14:21 2022-05-16T19:50:34 CVE Modified Date updated
2022-12-05 02:14:21 Analyzed Vulnerability Status updated