CVE-2021-32918
First published: Thu May 13 2021(Updated: )
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.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| debian/prosody | 0.11.2-1+deb10u4 0.11.9-2+deb11u2 0.12.3-1 0.12.4-1 | |
| Prosody Prosody | <0.11.9 | |
| Lua Lua | =5.2.0 | |
| Lua Lua | =5.3.0 | |
| Debian Debian Linux | =10.0 | |
| Fedoraproject Fedora | =32 | |
| Fedoraproject Fedora | =33 | |
| Fedoraproject Fedora | =34 |
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Reference Links
- https://www.openwall.com/lists/oss-security/2021/05/13/1
- https://prosody.im/security/advisory_20210512.txt
- https://hg.prosody.im/trunk/rev/db8e41eb6eff
- https://hg.prosody.im/trunk/rev/b0d8920ed5e5
- https://hg.prosody.im/trunk/rev/929de6ade6b6
- https://hg.prosody.im/trunk/rev/63fd4c8465fb
- https://hg.prosody.im/trunk/rev/1937b3c3efb5
- https://hg.prosody.im/trunk/rev/3413fea9e6db
- https://security-tracker.debian.org/tracker/CVE-2021-32918
- http://www.openwall.com/lists/oss-security/2021/05/13/1
- http://www.openwall.com/lists/oss-security/2021/05/14/2
- https://blog.prosody.im/prosody-0.11.9-released/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/6MFFBZWXKPZEVZNQSVJNCUE7WRF3T7DG/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GUN63AHEWB2WRROJHU3BVJRWLONCT2B7/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/LWJ2DG2DFJOEFEWOUN26IMYYWGSA2ZEE/
- https://security.gentoo.org/glsa/202105-15
- https://www.debian.org/security/2021/dsa-4916
Frequently Asked Questions
What is the vulnerability ID for this issue?
The vulnerability ID for this issue is CVE-2021-32918.
What is the severity of CVE-2021-32918?
The severity of CVE-2021-32918 is high with a CVSS score of 7.5.
What is the affected software for CVE-2021-32918?
The affected software for CVE-2021-32918 is Prosody version 0.11.2-1+deb10u4, 0.11.9-2+deb11u2, 0.12.3-1, and 0.12.4-1 running under Lua 5.2 or Lua 5.3.
How can I fix CVE-2021-32918?
To fix CVE-2021-32918, update Prosody to version 0.11.9 or apply the available patches from the official Prosody website.
Where can I find more information about CVE-2021-32918?
You can find more information about CVE-2021-32918 in the references provided: [link1], [link2], and [link3].
- collector/security-tracker-debian
- collector/nvd-index
- package-manager/debian
- vendor/prosody
- canonical/prosody prosody
- vendor/lua
- canonical/lua lua
- version/lua lua/5.2.0
- version/lua lua/5.3.0
- vendor/debian
- canonical/debian debian linux
- version/debian debian linux/10.0
- vendor/fedoraproject
- canonical/fedoraproject fedora
- version/fedoraproject fedora/32
- version/fedoraproject fedora/33
- version/fedoraproject fedora/34