#VU43427 Resource management error in Python - CVE-2012-0845

Vulnerability identifier: #VU43427

Vulnerability risk: Medium

CVSSv4.0: 2.7 [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-2012-0845

CWE-ID: CWE-399

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Python
Universal components / Libraries / Scripting languages

Vendor: Python.org

Description

The vulnerability allows a remote non-authenticated attacker to perform service disruption.

SimpleXMLRPCServer.py in SimpleXMLRPCServer in Python before 2.6.8, 2.7.x before 2.7.3, 3.x before 3.1.5, and 3.2.x before 3.2.3 allows remote attackers to cause a denial of service (infinite loop and CPU consumption) via an XML-RPC POST request that contains a smaller amount of data than specified by the Content-Length header.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Python: 0.9.0 - 0.9.1, 1.2 - 1.6.1, 2.0 - 2.0.1, 2.1 - 2.1.3, 2.2 - 2.2.3, 2.3.1 - 2.3.7, 2.4.1 - 2.4.6, 2.5.1 - 2.5.150, 2.6.1 - 2.6.6150, 2.7.1 - 2.7.2150, 3.0 - 3.0.1, 3.1 - 3.1.4, 3.2 - 3.2.2150

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External links
https://bugs.python.org/issue14001
https://lists.apple.com/archives/security-announce/2013/Oct/msg00004.html
https://lists.opensuse.org/opensuse-security-announce/2020-01/msg00040.html
https://python.org/download/releases/2.6.8/
https://python.org/download/releases/2.7.3/
https://python.org/download/releases/3.1.5/
https://python.org/download/releases/3.2.3/
https://secunia.com/advisories/50858
https://secunia.com/advisories/51024
https://secunia.com/advisories/51040
https://secunia.com/advisories/51087
https://secunia.com/advisories/51089
https://www.openwall.com/lists/oss-security/2012/02/13/4
https://www.securitytracker.com/id?1026689
https://www.ubuntu.com/usn/USN-1592-1
https://www.ubuntu.com/usn/USN-1596-1
https://www.ubuntu.com/usn/USN-1613-1
https://www.ubuntu.com/usn/USN-1613-2
https://www.ubuntu.com/usn/USN-1615-1
https://www.ubuntu.com/usn/USN-1616-1
https://bugzilla.redhat.com/show_bug.cgi?id=789790

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.