CVE-2021-32918

moderate-risk

Published 2021-05-13

An issue was discovered in Prosody before 0.11.9. Default settings are susceptible to remote unauthenticated denial-of-service (DoS) attacks via memory exhaustion when running under Lua 5.2 or Lua 5.3.

Do I need to act?

2.9% 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

CVSS 7.5/10 High

NETWORK / LOW complexity

Affected Products (5)

Prosody

Debian Linux

Fedora

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...

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...

Third Party Advisory https://security.gentoo.org/glsa/202105-15

Third Party Advisory https://www.debian.org/security/2021/dsa-4916

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moderate-risk

Severity 26/34 · High

Exploitability 6/34 · Minimal

Exposure 12/34 · Low