Vulnerability Monitor

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CVE-2021-32918

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.

Published

2021-05-13T16:15:08.317

Last Modified

2024-11-21T06:07:55.377

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 7.5 (HIGH)

CVSSv2 Vector

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

Access Vector: NETWORK
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: NONE
Integrity Impact: NONE
Availability Impact: PARTIAL

Exploitability Score

10.0

Impact Score

2.9

Weaknesses

Type: Primary
CWE-400

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	prosody	prosody	< 0.11.9	Yes
Application	lua	lua	5.2.0	No
Application	lua	lua	5.3.0	No
Operating System	debian	debian_linux	10.0	Yes
Operating System	fedoraproject	fedora	32	Yes
Operating System	fedoraproject	fedora	33	Yes
Operating System	fedoraproject	fedora	34	Yes

References

http://www.openwall.com/lists/oss-security/2021/05/13/1 Mailing List, Third Party Advisory ([email protected])
http://www.openwall.com/lists/oss-security/2021/05/14/2 Mailing List, Mitigation, Third Party Advisory ([email protected])
https://blog.prosody.im/prosody-0.11.9-released/ Release Notes, Vendor Advisory ([email protected])
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6MFFBZWXKPZEVZNQSVJNCUE7WRF3T7DG/ ([email protected])
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GUN63AHEWB2WRROJHU3BVJRWLONCT2B7/ ([email protected])
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LWJ2DG2DFJOEFEWOUN26IMYYWGSA2ZEE/ ([email protected])
https://security.gentoo.org/glsa/202105-15 Third Party Advisory ([email protected])
https://www.debian.org/security/2021/dsa-4916 Third Party Advisory ([email protected])
http://www.openwall.com/lists/oss-security/2021/05/13/1 Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.openwall.com/lists/oss-security/2021/05/14/2 Mailing List, Mitigation, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://blog.prosody.im/prosody-0.11.9-released/ Release Notes, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6MFFBZWXKPZEVZNQSVJNCUE7WRF3T7DG/ (af854a3a-2127-422b-91ae-364da2661108)
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GUN63AHEWB2WRROJHU3BVJRWLONCT2B7/ (af854a3a-2127-422b-91ae-364da2661108)
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LWJ2DG2DFJOEFEWOUN26IMYYWGSA2ZEE/ (af854a3a-2127-422b-91ae-364da2661108)
https://security.gentoo.org/glsa/202105-15 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://www.debian.org/security/2021/dsa-4916 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)