ID CVE-2010-1866
Summary 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
Vulnerable Configurations
  • cpe:2.3:a:php:php:5.3.0:*:*:*:*:*:*:*
    cpe:2.3:a:php:php:5.3.0:*:*:*:*:*:*:*
  • cpe:2.3:a:php:php:5.3.0:-:*:*:*:*:*:*
    cpe:2.3:a:php:php:5.3.0:-:*:*:*:*:*:*
  • cpe:2.3:a:php:php:5.3.0:alpha1:*:*:*:*:*:*
    cpe:2.3:a:php:php:5.3.0:alpha1:*:*:*:*:*:*
  • cpe:2.3:a:php:php:5.3.0:alpha2:*:*:*:*:*:*
    cpe:2.3:a:php:php:5.3.0:alpha2:*:*:*:*:*:*
  • cpe:2.3:a:php:php:5.3.0:alpha3:*:*:*:*:*:*
    cpe:2.3:a:php:php:5.3.0:alpha3:*:*:*:*:*:*
  • cpe:2.3:a:php:php:5.3.0:beta1:*:*:*:*:*:*
    cpe:2.3:a:php:php:5.3.0:beta1:*:*:*:*:*:*
  • cpe:2.3:a:php:php:5.3.0:rc1:*:*:*:*:*:*
    cpe:2.3:a:php:php:5.3.0:rc1:*:*:*:*:*:*
  • cpe:2.3:a:php:php:5.3.0:rc2:*:*:*:*:*:*
    cpe:2.3:a:php:php:5.3.0:rc2:*:*:*:*:*:*
  • cpe:2.3:a:php:php:5.3.0:rc3:*:*:*:*:*:*
    cpe:2.3:a:php:php:5.3.0:rc3:*:*:*:*:*:*
  • cpe:2.3:a:php:php:5.3.0:rc4:*:*:*:*:*:*
    cpe:2.3:a:php:php:5.3.0:rc4:*:*:*:*:*:*
  • cpe:2.3:a:php:php:5.3.1:*:*:*:*:*:*:*
    cpe:2.3:a:php:php:5.3.1:*:*:*:*:*:*:*
  • cpe:2.3:a:php:php:5.3.1:-:*:*:*:*:*:*
    cpe:2.3:a:php:php:5.3.1:-:*:*:*:*:*:*
  • cpe:2.3:a:php:php:5.3.1:rc1:*:*:*:*:*:*
    cpe:2.3:a:php:php:5.3.1:rc1:*:*:*:*:*:*
  • cpe:2.3:a:php:php:5.3.1:rc2:*:*:*:*:*:*
    cpe:2.3:a:php:php:5.3.1:rc2:*:*:*:*:*:*
  • cpe:2.3:a:php:php:5.3.1:rc3:*:*:*:*:*:*
    cpe:2.3:a:php:php:5.3.1:rc3:*:*:*:*:*:*
  • cpe:2.3:a:php:php:5.3.1:rc4:*:*:*:*:*:*
    cpe:2.3:a:php:php:5.3.1:rc4:*:*:*:*:*:*
  • cpe:2.3:a:php:php:5.3.2:*:*:*:*:*:*:*
    cpe:2.3:a:php:php:5.3.2:*:*:*:*:*:*:*
  • cpe:2.3:a:php:php:5.3.2:-:*:*:*:*:*:*
    cpe:2.3:a:php:php:5.3.2:-:*:*:*:*:*:*
  • cpe:2.3:a:php:php:5.3.2:rc1:*:*:*:*:*:*
    cpe:2.3:a:php:php:5.3.2:rc1:*:*:*:*:*:*
  • cpe:2.3:a:php:php:5.3.2:rc2:*:*:*:*:*:*
    cpe:2.3:a:php:php:5.3.2:rc2:*:*:*:*:*:*
  • cpe:2.3:a:php:php:5.3.2:rc3:*:*:*:*:*:*
    cpe:2.3:a:php:php:5.3.2:rc3:*:*:*:*:*:*
  • cpe:2.3:o:opensuse:opensuse:11.1:*:*:*:*:*:*:*
    cpe:2.3:o:opensuse:opensuse:11.1:*:*:*:*:*:*:*
  • cpe:2.3:o:opensuse:opensuse:11.2:*:*:*:*:*:*:*
    cpe:2.3:o:opensuse:opensuse:11.2:*:*:*:*:*:*:*
  • cpe:2.3:o:opensuse:opensuse:11.3:*:*:*:*:*:*:*
    cpe:2.3:o:opensuse:opensuse:11.3:*:*:*:*:*:*:*
  • cpe:2.3:o:suse:linux_enterprise:11.0:sp1:*:*:*:*:*:*
    cpe:2.3:o:suse:linux_enterprise:11.0:sp1:*:*:*:*:*:*
  • cpe:2.3:o:suse:linux_enterprise:11.0:-:*:*:*:*:*:*
    cpe:2.3:o:suse:linux_enterprise:11.0:-:*:*:*:*:*:*
  • cpe:2.3:o:suse:linux_enterprise:10.0:sp3:*:*:*:*:*:*
    cpe:2.3:o:suse:linux_enterprise:10.0:sp3:*:*:*:*:*:*
CVSS
Base: 7.5 (as of 08-02-2024 - 18:38)
Impact:
Exploitability:
CWE CWE-190
CAPEC
  • Forced Integer Overflow
    This attack forces an integer variable to go out of range. The integer variable is often used as an offset such as size of memory allocation or similarly. The attacker would typically control the value of such variable and try to get it out of range. For instance the integer in question is incremented past the maximum possible value, it may wrap to become a very small, or negative number, therefore providing a very incorrect value which can lead to unexpected behavior. At worst the attacker can execute arbitrary code.
Access
VectorComplexityAuthentication
NETWORK LOW NONE
Impact
ConfidentialityIntegrityAvailability
PARTIAL PARTIAL PARTIAL
cvss-vector via4 AV:N/AC:L/Au:N/C:P/I:P/A:P
refmap via4
misc http://php-security.org/2010/05/02/mops-2010-003-php-dechunk-filter-signed-comparison-vulnerability/index.html
suse SUSE-SR:2010:017
Last major update 08-02-2024 - 18:38
Published 07-05-2010 - 23:00
Last modified 08-02-2024 - 18:38
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