CVE-2010-1866

HIGH

Description

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

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

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

Details

Source: MITRE

Published: 2010-05-07

Updated: 2010-09-30

Type: CWE-189

Risk Information

CVSS v2.0

Base Score: 7.5

Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P

Impact Score: 6.4

Exploitability Score: 10

Severity: HIGH