Published: 13/05/2021 Updated: 07/11/2023

CVSS v2 Base Score: 7.8 | Impact Score: 6.9 | Exploitability Score: 10

CVSS v3 Base Score: 7.5 | Impact Score: 3.6 | Exploitability Score: 3.9

VMScore: 694

Vector: AV:N/AC:L/Au:N/C:N/I:N/A:C

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

Vulnerable Product	Search on Vulmon	Subscribe to Product
prosody prosody
debian debian linux 10.0
fedoraproject fedora 32
fedoraproject fedora 33
fedoraproject fedora 34

Debian Bug report logs - #988668 prosody: CVE-2021-32917 CVE-2021-32918 CVE-2021-32919 CVE-2021-32920 CVE-2021-32921 Package: src:prosody; Maintainer for src:prosody is Debian XMPP Maintainers <pkg-xmpp-devel@listsaliothdebianorg>; Reported by: Salvatore Bonaccorso <carnil@debianorg> Date: Mon, 17 May 2021 17:12:0 ...

Multiple security issues were found in Prosody, a lightweight Jabber/XMPP server, which could result in denial of service or information disclosure For the stable distribution (buster), these problems have been fixed in version 0112-1+deb10u1 We recommend that you upgrade your prosody packages For the detailed security status of prosody please ...

A security issue was found in the Prosodyim XMPP server software before version 0119 It was discovered that Prosody does not disable SSL/TLS renegotiation, even though this is not used in XMPP A malicious client may flood a connection with renegotiation requests to consume excessive CPU resources on the server ...

oss-sec mailing list archives   By Date By Thread </form>    Re: Prosody XMPP server advisory 2021-05-12 (multiple vulnerabilities)   ...

NVD-CWE-Other https://blog.prosody.im/prosody-0.11.9-released/http://www.openwall.com/lists/oss-security/2021/05/13/1 http://www.openwall.com/lists/oss-security/2021/05/14/2 https://www.debian.org/security/2021/dsa-4916 https://security.gentoo.org/glsa/202105-15 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6MFFBZWXKPZEVZNQSVJNCUE7WRF3T7DG/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LWJ2DG2DFJOEFEWOUN26IMYYWGSA2ZEE/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GUN63AHEWB2WRROJHU3BVJRWLONCT2B7/https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=988668 https://nvd.nist.gov https://www.debian.org/security/2021/dsa-4916

CVE-2021-32920

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