CVE-2021-32920

moderate-risk
Published 2021-05-13

Prosody before 0.11.9 allows Uncontrolled CPU Consumption via a flood of SSL/TLS renegotiation requests.

Do I need to act?

~
3.3% chance of exploitation in next 30 days
EPSS score — moderate exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
7
CVSS 7.5/10 High
NETWORK / LOW complexity

Affected Products (5)

Prosody

Affected Vendors

Debian Fedoraproject Prosody

References (16)

Mailing List http://www.openwall.com/lists/oss-security/2021/05/13/1
Mailing List http://www.openwall.com/lists/oss-security/2021/05/14/2
Release Notes https://blog.prosody.im/prosody-0.11.9-released/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro...
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro...
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro...
Third Party Advisory https://security.gentoo.org/glsa/202105-15
Third Party Advisory https://www.debian.org/security/2021/dsa-4916
Mailing List http://www.openwall.com/lists/oss-security/2021/05/13/1
Mailing List http://www.openwall.com/lists/oss-security/2021/05/14/2
Release Notes https://blog.prosody.im/prosody-0.11.9-released/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro...
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro...
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro...
Third Party Advisory https://security.gentoo.org/glsa/202105-15
Third Party Advisory https://www.debian.org/security/2021/dsa-4916
45
/ 100
moderate-risk
Severity 26/34 · High
Exploitability 7/34 · Low
Exposure 12/34 · Low