CVE-2021-32920
HIGHprosody < 0.11.9 - Unauthenticated Denial of Service via SSL/TLS Renegotiation Flood
Title source: llmDescription
Prosody before 0.11.9 allows Uncontrolled CPU Consumption via a flood of SSL/TLS renegotiation requests.
References (8)
Core 8
Core References
Release Notes, Vendor Advisory x_refsource_misc
https://blog.prosody.im/prosody-0.11.9-released/
Mailing List, Third Party Advisory mailing-list
x_refsource_mlist
http://www.openwall.com/lists/oss-security/2021/05/13/1
Mailing List, Mitigation, Third Party Advisory mailing-list
x_refsource_mlist
http://www.openwall.com/lists/oss-security/2021/05/14/2
Third Party Advisory vendor-advisory
x_refsource_debian
https://www.debian.org/security/2021/dsa-4916
Mailing List, Third Party Advisory vendor-advisory
x_refsource_fedora
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6MFFBZWXKPZEVZNQSVJNCUE7WRF3T7DG/
Mailing List, Third Party Advisory vendor-advisory
x_refsource_fedora
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LWJ2DG2DFJOEFEWOUN26IMYYWGSA2ZEE/
Mailing List, Third Party Advisory vendor-advisory
x_refsource_fedora
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GUN63AHEWB2WRROJHU3BVJRWLONCT2B7/
Third Party Advisory x_refsource_misc
https://security.gentoo.org/glsa/202105-15
Scores
CVSS v3
7.5
EPSS
0.0226
EPSS Percentile
81.0%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Details
Status
published
Products (5)
debian/debian_linux
10.0
fedoraproject/fedora
32
fedoraproject/fedora
33
fedoraproject/fedora
34
prosody/prosody
< 0.11.9
Published
May 13, 2021
Tracked Since
Feb 18, 2026