{"id":"CVE-2010-1666","aliases":["DEBIAN-CVE-2010-1666","DSA-2068-1","EUVD-2010-0029","GHSA-cqmh-mpx2-g633","PYSEC-2010-30","openSUSE-SU-2024:11259-1"],"status":"published","title":"Improper Restriction of Operations within the Bounds of a Memory Buffer in python-cjson","description":"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.","severity":{"version":"2.0","score":6.8,"vector":"AV:N/AC:M/Au:N/C:P/I:P/A:P","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.01665,"percentile":0.76898,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-119"],"published":"2010-07-02T18:30:00Z","modified":"2026-06-16T23:18:49Z","fixes":[{"ecosystem":"PyPI","package":"python-cjson","fixed_in":["1.0.5.1","1.1.0"],"sources":["ghsa","osv"]},{"ecosystem":"Debian:5.0","package":"python-cjson","fixed_in":["1.0.5-1+lenny1"],"sources":["osv"]}],"affected":[{"source":"ghsa","ecosystem":"PyPI","package":"python-cjson","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"1.0.5"},{"fixed":"1.0.5.1"}]}]},{"source":"osv","ecosystem":"Debian:5.0","package":"python-cjson","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.0.5-1+lenny1"}]}],"versions":["1.0.5-1"]},{"source":"osv","ecosystem":"PyPI","package":"python-cjson","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.0.5.1"}]}],"versions":["1.0.0","1.0.1","1.0.2","1.0.3","1.0.4","1.0.5"]},{"source":"osv","ecosystem":"PyPI","package":"python-cjson","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.1.0"}]}],"versions":["1.0.0","1.0.1","1.0.2","1.0.3","1.0.4","1.0.5"]}],"products":[{"vendor":"dan_pascu","product":"python-cjson"}],"references":[{"url":"http://www.vupen.com/english/advisories/2010/1774","tags":["vdb-entry","x_refsource_VUPEN","x_transferred","advisory"]},{"url":"http://www.debian.org/security/2010/dsa-2068","tags":["vendor-advisory","x_refsource_DEBIAN","x_transferred","web","advisory"]},{"url":"http://secunia.com/advisories/40335","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred","Vendor Advisory","advisory"]},{"url":"http://secunia.com/advisories/40500","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred","advisory"]},{"url":"https://bugs.launchpad.net/ubuntu/+source/python-cjson/+bug/585274","tags":["x_refsource_CONFIRM","x_transferred","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2010-1666","tags":["advisory"]},{"url":"https://github.com/AGProjects/python-cjson/commit/dc2b8781b8666de5ca707318521f554904fdd690","tags":["web"]},{"url":"https://github.com/pypa/advisory-database/tree/main/vulns/python-cjson/PYSEC-2010-30.yaml","tags":["web"]},{"url":"https://github.com/advisories/GHSA-cqmh-mpx2-g633","tags":["advisory"]},{"url":"https://github.com/AGProjects/python-cjson","tags":["package"]},{"url":"","tags":["advisory"]},{"url":"https://www.suse.com/security/cve/CVE-2010-1666","tags":["web"]}],"sources":{"cve":[{"id":"CVE-2010-1666","description":"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.","status":"published","published":"2010-07-02T18:30:00Z","modified":"2024-08-07T01:28:41.818Z","updated_at":"2026-11-02T14:33:28.858903Z"}],"euvd":[{"id":"EUVD-2010-0029","description":"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.","status":"published","published":"2010-07-02T18:30:00Z","modified":"2024-08-07T01:28:41Z","updated_at":"2026-11-03T01:39:41.294436Z"}],"ghsa":[{"id":"GHSA-cqmh-mpx2-g633","title":"Improper Restriction of Operations within the Bounds of a Memory Buffer in python-cjson","description":"Buffer overflow in Dan Pascu python-cjson 1.0.5, when 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function.","status":"published","published":"2010-07-02T19:00:00.91Z","modified":"2026-06-16T23:18:49.093Z","cvss":[{"version":"2.0","score":6.8,"vector":"AV:N/AC:M/Au:N/C:P/I:P/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-119"],"updated_at":"2026-11-02T14:01:49.736647Z"}],"osv":[{"id":"GHSA-cqmh-mpx2-g633","title":"Improper Restriction of Operations within the Bounds of a Memory Buffer in python-cjson","description":"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.","status":"published","published":"2022-05-17T05:49:38Z","modified":"2024-10-15T17:00:54.813578Z","cvss":[{"version":"4.0","score":6.9,"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","level":"medium"}],"cwes":["CWE-119"],"updated_at":"2026-11-02T15:46:45.28161Z"},{"id":"DSA-2068-1","title":"python-cjson - denial of service","status":"published","published":"2010-07-11T00:00:00Z","modified":"2026-03-09T01:22:08.436875Z","updated_at":"2026-11-02T15:46:15.108335Z"},{"id":"openSUSE-SU-2024:11259-1","title":"python36-python-cjson-1.2.2-2.5 on GA media","description":"These are all security issues fixed in the python36-python-cjson-1.2.2-2.5 package on the GA media of openSUSE Tumbleweed.","status":"published","published":"2024-06-15T00:00:00Z","modified":"2026-02-04T03:16:01.596421Z","updated_at":"2026-11-02T16:58:34.894275Z"},{"id":"PYSEC-2010-30","description":"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.","status":"published","published":"2010-07-02T19:00:00Z","modified":"2023-11-08T03:56:55.969118Z","updated_at":"2026-11-02T15:52:51.254177Z"}]}}