PT-2011-2609 · Php · Php

Published 2011-02-02 · Updated 2018-10-30 · CVE-2011-0753

Positive Technologies (AI Summary)

CVSS v2.0

4.3

Medium

Base vector

AV:N/AC:M/Au:N/C:N/I:N/A:P

Name of the Vulnerable Software and Affected Versions PHP versions prior to 5.3.4

Description A race condition exists in the PCNTL extension when a user-defined signal handler is present, potentially allowing attackers to cause a denial of service through memory corruption by sending a large number of concurrent signals.

Recommendations For versions prior to 5.3.4, update to version 5.3.4 or later to resolve the issue. As a temporary workaround, consider disabling the PCNTL extension until a patch is available. Restrict access to signal handlers to minimize the risk of exploitation.

Fix

DoS

Race Condition

Weakness Enumeration

CWE-362

Related Identifiers

CVE-2011-0753

Affected Products

Php

References · 6

• https://nvd.nist.gov/vuln/detail/CVE-2011-0753 · Security Note
• http://bugs.php.net/52784 · Patch
• http://php.net/ChangeLog-5.php · Note
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-0753 · Note
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12271 · Note
• https://exchange.xforce.ibmcloud.com/vulnerabilities/65431 · Note