CVE-2021-32921
Published: 13 May 2021
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.
Priority
Status
Package | Release | Status |
---|---|---|
prosody Launchpad, Ubuntu, Debian |
bionic |
Needed
|
focal |
Needed
|
|
groovy |
Ignored
(end of life)
|
|
hirsute |
Ignored
(end of life)
|
|
impish |
Ignored
(end of life)
|
|
jammy |
Needed
|
|
kinetic |
Ignored
(end of life, was needed)
|
|
lunar |
Not vulnerable
(0.12.1-1)
|
|
mantic |
Not vulnerable
(0.12.1-1)
|
|
trusty |
Does not exist
|
|
upstream |
Released
(0.11.9)
|
|
xenial |
Needs triage
|
Severity score breakdown
Parameter | Value |
---|---|
Base score | 5.9 |
Attack vector | Network |
Attack complexity | High |
Privileges required | None |
User interaction | None |
Scope | Unchanged |
Confidentiality | High |
Integrity impact | None |
Availability impact | None |
Vector | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N |
References
- 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
- NVD
- Launchpad
- Debian