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CVE-2010-1866

Date: May 7, 2010

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.

Language: C

Severity Score

Related Resources (5)

https://nvd.nist.gov/vuln/detail/CVE-2010-1866
http://php-security.org/2010/05/02/mops-2010-003-php-dechunk-filter-signed-comparison-vulnerability/index.html
http://lists.opensuse.org/opensuse-security-announce/2010-09/msg00006.html
https://people.canonical.com/~ubuntu-security/cve/CVE-2010-1866
https://www.mend.io/vulnerability-database/CVE-2010-1866

Severity Score

Weakness Type (CWE)

Integer Overflow or Wraparound

CWE-190

Numeric Errors

CWE-189

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): HIGH
Integrity (I): HIGH
Availability (A): HIGH

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): LOW
Authentication (AU): NONE
Confidentiality (C): PARTIAL
Integrity (I): PARTIAL
Availability (A): PARTIAL
Additional information:

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