Resource management error in Prosody - CVE-2011-2205
Published: June 23, 2011 / Updated: August 11, 2020
Vulnerability identifier: #VU44935
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2011-2205
CWE-ID: CWE-399
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Prosody
Affected software:
Prosody
Prosody
Detailed vulnerability description
The vulnerability allows a remote non-authenticated attacker to perform service disruption.
Prosody before 0.8.1 does not properly detect recursion during entity expansion, which allows remote attackers to cause a denial of service (memory and CPU consumption) via a crafted XML document containing a large number of nested entity references, a similar issue to CVE-2003-1564.
How to mitigate CVE-2011-2205
Install update from vendor's website.
Sources
- http://blog.prosody.im/prosody-0-8-1-released/
- http://hg.prosody.im/0.8/rev/5305a665bdd4
- http://hg.prosody.im/0.8/rev/ee6a18f10a8d
- http://prosody.im/doc/release/0.8.1
- http://secunia.com/advisories/44852
- http://www.openwall.com/lists/oss-security/2011/06/14/6
- http://www.openwall.com/lists/oss-security/2011/06/15/5
- http://www.securityfocus.com/bid/48125
- https://exchange.xforce.ibmcloud.com/vulnerabilities/67884