PHP ext/gd/gd.c buffer overflow

php-cve20137226-bo (91099) The risk level is classified as HighHigh Risk

Description:

PHP is vulnerable to a heap-based buffer overflow, caused by improper bounds checking by the imagecrop() function within the ext/gd/gd.c script. By sending an overly long argument, a remote attacker could overflow a buffer and execute arbitrary code on the system or cause the application to crash.

*CVSS:

Base Score: 7.5
  Access Vector: Network
  Access Complexity: Low
  Authentication: None
  Confidentiality Impact: Partial
  Integrity Impact: Partial
  Availability Impact: Partial
 
Temporal Score: 5.5
  Exploitability: Unproven
  Remediation Level: Official-Fix
  Report Confidence: Confirmed

Consequences:

Gain Access

Remedy:

Upgrade to the latest version of PHP (5.5.9 or later), available from the PHP Web site. See References.

References:

  • IBM Security Bulletin 1667176: IBM InfoSphere Balanced Warehouse C3000 and C4000, IBM Smart Analytics System 1050 and 2050 are affected by multiple vulnerabilities in PHP.
  • PHP Web site: Heap Overflow Vulnerability in imagecrop().
  • Red Hat Bugzilla Bug 1065108: CVE-2013-7226 CVE-2013-7327 CVE-2013-7328 CVE-2014-2020 php: multiple vulnerabilities in gdImageCrop().
  • BID-65533: PHP 'ext/gd/gd.c' Heap Based Buffer Overflow Vulnerability
  • CVE-2013-7226: Integer overflow in the gdImageCrop function in ext/gd/gd.c in PHP 5.5.x before 5.5.9 allows remote attackers to cause a denial of service (application crash) or possibly have unspecified other impact via an imagecrop function call with a large x dimension value, leading to a heap-based buffer overflow.
  • SA56829: PHP "imagecrop()" Buffer Overflow Vulnerabilities

Platforms Affected:

  • IBM Smart Analytics System 9.7
  • PHP PHP 5.5.7

Reported:

Feb 12, 2014

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The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall IBM be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.

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