Vulnerabilities > CVE-2010-4657 - Missing Release of Resource after Effective Lifetime vulnerability in multiple products

CVSS 7.5 - HIGH

Attack vector

NETWORK

Attack complexity

LOW

Privileges required

NONE

Confidentiality impact

HIGH

Integrity impact

NONE

Availability impact

NONE

network

low complexity

NVD

Published: 2019-11-13

Updated: 2024-11-21

Summary

PHP5 before 5.4.4 allows passing invalid utf-8 strings via the xmlTextWriterWriteAttribute, which are then misparsed by libxml2. This results in memory leak into the resulting output.

Vulnerable Configurations

Part	Description	Count
Application	Php PHP PHP 5.0.0 PHP PHP 5.0.1 PHP PHP 5.0.2 PHP PHP 5.0.3 PHP PHP 5.0.4 PHP PHP 5.0.5 PHP PHP 5.1 PHP PHP 5.1.0 PHP PHP 5.1.1 PHP PHP 5.1.2 PHP PHP 5.1.3 PHP PHP 5.1.4 PHP PHP 5.1.5 PHP PHP 5.1.6 PHP PHP 5.2.0 PHP PHP 5.2.1 PHP PHP 5.2.2 PHP PHP 5.2.3 PHP PHP 5.2.4 PHP PHP 5.2.5 PHP PHP 5.2.6 PHP PHP 5.2.7 PHP PHP 5.2.8 PHP PHP 5.2.9 PHP PHP 5.2.10 PHP PHP 5.2.11 PHP PHP 5.2.12 PHP PHP 5.2.13 PHP PHP 5.2.14 PHP PHP 5.2.15 PHP PHP 5.2.16 PHP PHP 5.2.17 PHP PHP 5.3.0 PHP PHP 5.3.1 PHP PHP 5.3.2 PHP PHP 5.3.3 PHP PHP 5.3.4 PHP PHP 5.3.5 PHP PHP 5.3.6 PHP PHP 5.3.7 PHP PHP 5.3.8 PHP PHP 5.3.9 PHP PHP 5.3.10 PHP PHP 5.3.11 PHP PHP 5.3.12 PHP PHP 5.3.13 PHP PHP 5.3.14 PHP PHP 5.3.15 PHP PHP 5.3.16 PHP PHP 5.3.17 PHP PHP 5.3.18 PHP PHP 5.3.19 PHP PHP 5.3.20 PHP PHP 5.3.21 PHP PHP 5.3.22 PHP PHP 5.3.23 PHP PHP 5.3.24 PHP PHP 5.3.25 PHP PHP 5.3.26 PHP PHP 5.3.27 PHP PHP 5.3.28 PHP PHP 5.3.29 PHP PHP 5.4.0 PHP PHP 5.4.1 PHP PHP 5.4.2 PHP PHP 5.4.3	255
OS	Redhat Redhat Enterprise Linux 6.0 Redhat Enterprise Linux 5.0	2
OS	Debian Debian Debian Linux 8.0	1

Common Weakness Enumeration (CWE)

CWE-772 - Missing Release of Resource after Effective Lifetime

Common Attack Pattern Enumeration and Classification (CAPEC)

HTTP DoS
An attacker performs flooding at the HTTP level to bring down only a particular web application rather than anything listening on a TCP/IP connection. This denial of service attack requires substantially fewer packets to be sent which makes DoS harder to detect. This is an equivalent of SYN flood in HTTP. The idea is to keep the HTTP session alive indefinitely and then repeat that hundreds of times. This attack targets resource depletion weaknesses in web server software. The web server will wait to attacker's responses on the initiated HTTP sessions while the connection threads are being exhausted.

Summary

Vulnerable Configurations

Common Weakness Enumeration (CWE)

Common Attack Pattern Enumeration and Classification (CAPEC)

References