CVE DATABASE / CVE-2010-4645
CVE-2010-4645
CVSS 5 · MEDIUM
Summary
strtod.c, as used in the zend_strtod function in PHP 5.2 before 5.2.17 and 5.3 before 5.3.5, and other products, allows context-dependent attackers to cause a denial of service (infinite loop) via a certain floating-point value in scientific notation, which is not properly handled in x87 FPU registers, as demonstrated using 2.2250738585072011e-308.
CVSS 2.0 breakdown
| Base score | 5 (MEDIUM) |
| Vector | AV:N/AC:L/Au:N/C:N/I:N/A:P |
| Attack vector | NETWORK |
| Attack complexity | LOW |
| Confidentiality | NONE |
| Integrity | NONE |
| Availability | PARTIAL |
Weakness type (CWE)
Affected products
Php php
Check this CVE live
Use our free CVE Lookup tool for the latest NVD record, or browse the full CISA KEV catalog.
References
- http://bugs.php.net/53632
- http://hal.archives-ouvertes.fr/docs/00/28/14/29/PDF/floating-point-article.pdf
- http://lists.apple.com/archives/Security-announce/2011//Oct/msg00003.html
- http://lists.fedoraproject.org/pipermail/package-announce/2011-January/053333.html
- http://lists.fedoraproject.org/pipermail/package-announce/2011-January/053355.html
- http://marc.info/?l=bugtraq&m=133226187115472&w=2
- http://marc.info/?l=bugtraq&m=133469208622507&w=2
- http://secunia.com/advisories/42812
- http://secunia.com/advisories/42843
- http://secunia.com/advisories/43051
- http://secunia.com/advisories/43189
- http://slackware.com/security/viewer.php?l=slackware-security&y=2011&m=slackware-security.484686
- http://support.apple.com/kb/HT5002
- http://svn.php.net/viewvc/php/php-src/branches/PHP_5_2/Zend/zend_strtod.c?r1=266327&r2=307095&pathrev=307095
- http://www.exploringbinary.com/php-hangs-on-numeric-value-2-2250738585072011e-308/
Data: NIST NVD. NVD last modified 2026-04-29. Always verify against the vendor advisory before acting.