Vulnerability Details : CVE-2012-2135
The utf-16 decoder in Python 3.1 through 3.3 does not update the aligned_end variable after calling the unicode_decode_call_errorhandler function, which allows remote attackers to obtain sensitive information (process memory) or cause a denial of service (memory corruption and crash) via unspecified vectors.
Vulnerability category: Memory CorruptionDenial of service
Threat overview for CVE-2012-2135
Top countries where our scanners detected CVE-2012-2135
Top open port discovered on systems with this issue
80
IPs affected by CVE-2012-2135 15,223
Threat actors abusing to this issue?
Yes
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Exploit prediction scoring system (EPSS) score for CVE-2012-2135
Probability of exploitation activity in the next 30 days: 3.28%
Percentile, the proportion of vulnerabilities that are scored at or less: ~ 90 % EPSS Score History EPSS FAQ
CVSS scores for CVE-2012-2135
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source |
|---|---|---|---|---|---|
|
6.4
|
MEDIUM | AV:N/AC:L/Au:N/C:P/I:N/A:P |
10.0
|
4.9
|
NIST |
References for CVE-2012-2135
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http://bugs.python.org/issue14579
Issue 14579: CVE-2012-2135: Vulnerability in the utf-16 decoder after error handling - Python trackerVendor Advisory
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http://www.openwall.com/lists/oss-security/2012/04/25/2
oss-security - CVE Request: Python 3.2/3.3 utf-16 decoder unicode_decode_call_errorhandler aligned_end is not updatedMailing List;Third Party Advisory
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http://www.ubuntu.com/usn/USN-1615-1
USN-1615-1: Python 3.2 vulnerabilities | Ubuntu security noticesThird Party Advisory
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http://www.openwall.com/lists/oss-security/2012/04/25/4
oss-security - Re: CVE Request: Python 3.2/3.3 utf-16 decoder unicode_decode_call_errorhandler aligned_end is not updatedMailing List;Third Party Advisory
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http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=670389
#670389 - python3: CVE-2012-2135 utf-16 decoder unicode_decode_call_errorhandler aligned_end is not updated - Debian Bug report logsThird Party Advisory
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http://www.ubuntu.com/usn/USN-1616-1
USN-1616-1: Python 3.1 vulnerabilities | Ubuntu security noticesThird Party Advisory
Products affected by CVE-2012-2135
- cpe:2.3:o:debian:debian_linux:6.0:*:*:*:*:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:-:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:12.10:*:*:*:*:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:10.04:*:*:*:-:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:11.04:*:*:*:*:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:11.10:*:*:*:*:*:*:*
- cpe:2.3:a:python:python:*:*:*:*:*:*:*:*
- cpe:2.3:a:python:python:*:*:*:*:*:*:*:*
- cpe:2.3:a:python:python:*:*:*:*:*:*:*:*