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5.0

PHP 5.2‑5.3 functions can expose memory contents

CVE-2010-2100 · published 16 years ago
Summary

The listed PHP functions in versions 5.2 through 5.2.13 and 5.3 through 5.3.2 can be tricked into revealing data from the server's memory. This could allow an attacker to see sensitive information that should remain private. Upgrade to a newer, supported PHP version or apply the vendor's security patch to resolve the issue.

What to do

The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.

Affected software
VendorProductAffected versions
php php 5.2.0
5.2.1
5.2.2
5.2.3
5.2.4
5.2.5
5.2.6
5.2.7
5.2.8
5.2.9
5.2.10
5.2.11
5 more version ranges
cpe:2.3:a:php:php:5.2.0:*:*:*:*:*:*:*
Original advisory text
The (1) htmlentities, (2) htmlspecialchars, (3) str_getcsv, (4) http_build_query, (5) strpbrk, and (6) strtr functions in PHP 5.2 through 5.2.13 and 5.3 through 5.3.2 allow context-dependent attack...
The (1) htmlentities, (2) htmlspecialchars, (3) str_getcsv, (4) http_build_query, (5) strpbrk, and (6) strtr functions in PHP 5.2 through 5.2.13 and 5.3 through 5.3.2 allow context-dependent attackers to obtain sensitive information (memory contents) by causing a userspace interruption of an internal function, related to the call time pass by reference feature.
References
Fix within
Internet-facing 14 days
Internal 60 days
  • Not known to be exploited
  • Can be exploited automatically (estimated)
  • Gives an attacker partial control (estimated)
Severity
5.0 Medium
Exploitation
2% chance of attack within 30 days
Type
CWE-200Information Exposure
Timeline
Published27 May 2010
Updated4 Nov 2026
First seen29 Sep 2026
Sources
CVE-2010-2100 · NVD
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