CVE-2012-2135
UnknownEPSS 4.55%
Last modified
CVE-2012-2135 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 4.55% chance of exploitation in the next 30 days.
Description
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.
Metrics
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Python | Python | >= 2.7.0, < 2.7.4 |
| Python | Python | >= 3.2.0, < 3.2.4 |
| Python | Python | >= 3.3.0, < 3.3.3 |
| Canonical | Ubuntu Linux | 10.04 |
| Canonical | Ubuntu Linux | 11.04 |
| Canonical | Ubuntu Linux | 11.10 |
| Canonical | Ubuntu Linux | 12.04 |
| Canonical | Ubuntu Linux | 12.10 |
| Debian | Debian Linux | 6.0 |
References
- http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=670389Third Party Advisory
- http://bugs.python.org/issue14579Vendor Advisory
- http://secunia.com/advisories/51087Third Party Advisory
- http://secunia.com/advisories/51089Third Party Advisory
- http://www.openwall.com/lists/oss-security/2012/04/25/2Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2012/04/25/4Mailing List, Third Party Advisory
- http://www.ubuntu.com/usn/USN-1615-1Third Party Advisory
- http://www.ubuntu.com/usn/USN-1616-1Third Party Advisory
- http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=670389Third Party Advisory
- http://bugs.python.org/issue14579Vendor Advisory
- http://secunia.com/advisories/51087Third Party Advisory
- http://secunia.com/advisories/51089Third Party Advisory
- http://www.openwall.com/lists/oss-security/2012/04/25/2Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2012/04/25/4Mailing List, Third Party Advisory
- http://www.ubuntu.com/usn/USN-1615-1Third Party Advisory
- http://www.ubuntu.com/usn/USN-1616-1Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is 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.
How severe is CVE-2012-2135?
Severity scoring for CVE-2012-2135 is pending analysis. The EPSS model estimates a 4.55% probability of exploitation in the next 30 days.
How do I fix CVE-2012-2135?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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Are you affected by CVE-2012-2135?
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Scan your code nowSource: NVD / NIST