CVE-2009-1271

Severity: medium (CVSS 5.0 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 2.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2009-04-08 · updated 2026-06-16

Description

The JSON_parser function (ext/json/JSON_parser.c) in PHP 5.2.x before 5.2.9 allows remote attackers to cause a denial of service (segmentation fault) via a malformed string to the json_decode API function.

Affected products

PHP: 5.2.0, 5.2.1, 5.2.2, 5.2.3, 5.2.4, 5.2.5 (+3)

References

http://cvs.php.net/viewvc.cgi/php-src/ext/json/JSON_parser.c?r1=1.1.2.14&r2=1.1.2.15
http://lists.apple.com/archives/security-announce/2009/Sep/msg00004.html
http://lists.opensuse.org/opensuse-security-announce/2009-07/msg00002.html
http://secunia.com/advisories/34770
http://secunia.com/advisories/34830
http://secunia.com/advisories/34933
http://secunia.com/advisories/35003
http://secunia.com/advisories/35007
http://secunia.com/advisories/35306
http://secunia.com/advisories/35685
http://secunia.com/advisories/36701
http://support.apple.com/kb/HT3865

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