Ubuntu.comUB:CVE-2021-32921CVE-2021-32921
4.3 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:N/AC:M/Au:N/C:P/I:N/A:N
5.9 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
0.004 Low
EPSS
Percentile
72.4%
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
blog.prosody.im/prosody-0.11.9-released/
hg.prosody.im/trunk/rev/13b84682518e
hg.prosody.im/trunk/rev/6f56170ea986
hg.prosody.im/trunk/rev/c98aebe601f9
launchpad.net/bugs/cve/CVE-2021-32921
nvd.nist.gov/vuln/detail/CVE-2021-32921
prosody.im/security/advisory_20210512.txt
security-tracker.debian.org/tracker/CVE-2021-32921
www.cve.org/CVERecord?id=CVE-2021-32921
www.openwall.com/lists/oss-security/2021/05/13/1
Related
4.3 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:N/AC:M/Au:N/C:P/I:N/A:N
5.9 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
0.004 Low
EPSS
Percentile
72.4%