CVE-2010-1866

CRITICAL9.8

The dechunk filter in PHP 5.3 through 5.3.2, when decoding an HTTP chunked encoding stream, allows context-dependent attackers to cause a denial of service (crash) and possibly trigger memory corruption via a negative chunk size, which bypasses a signed comparison, related to an integer overflow in the chunk size decoder

Published May 7, 2010

Modified 2 years ago

Details

The dechunk filter in PHP 5.3 through 5.3.2, when decoding an HTTP chunked encoding stream, allows context-dependent attackers to cause a denial of service (crash) and possibly trigger memory corruption via a negative chunk size, which bypasses a signed comparison, related to an integer overflow in the chunk size decoder.

References

ADVISORY

http://lists.opensuse.org/opensuse-security-announce/2010-09/msg00006.html

WEB

http://php-security.org/2010/05/02/mops-2010-003-php-dechunk-filter-signed-comparison-vulnerability/index.html

ADVISORY

https://www.cve.org/CVERecord?id=CVE-2010-1866

CVSS Analysis

CVSS v3.1

9.8

Exploitability

Attack Vector