Improper Restriction of Operations within the Bounds of a Memory Buffer in python-cjson
Buffer overflow in Dan Pascu python-cjson 1.0.5, when UCS-4 encoding is enabled, allows context-dependent attackers to cause a denial of service (application crash) or possibly have unspecified other impact via vectors involving crafted Unicode input to the cjson.encode function.
Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Python (PyPI) | python-cjson | < 1.0.5.1 | 1.0.5.1 |
References
- http://secunia.com/advisories/40335
- https://bugs.launchpad.net/ubuntu/+source/python-cjson/+bug/585274
- http://www.vupen.com/english/advisories/2010/1774
- http://www.debian.org/security/2010/dsa-2068
- http://secunia.com/advisories/40500
- https://github.com/advisories/GHSA-cqmh-mpx2-g633
- https://nvd.nist.gov/vuln/detail/CVE-2010-1666
- https://github.com/AGProjects/python-cjson/commit/dc2b8781b8666de5ca707318521f554904fdd690
- https://github.com/AGProjects/python-cjson
- https://github.com/pypa/advisory-database/tree/main/vulns/python-cjson/PYSEC-2010-30.yaml
- CVSS vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N- Weakness (CWE)
CWE-119- Platform
- Python (PyPI)
- Package
python-cjson- Disclosed
- 02.07.2010
- Updated
- 11.10.2026 11:20
Sources and licenses
OSV / GitHub Advisory Database - PYSEC-2010-30 - PyPA Advisory Database; CC BY 4.0
OSV / GitHub Advisory Database - GHSA-cqmh-mpx2-g633 - CC BY 4.0
Vulnerability history: python-cjson
All published vulnerabilities of this package (Python (PyPI)), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 2
- First → latest
- 07.2010 07.2010
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- Medium 2
Disclosures per year
- 2017: 0
- 2018: 0
- 2019: 0
- 2020: 0
- 2021: 0
- 2022: 0
- 2023: 0
- 2024: 0
- 2025: 0
- 2026: 0
earlier: 2
-
Improper Restriction of Operations within the Bounds of a Memory Buffer in python-cjson this entry
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