Input validation error in PHP - CVE-2004-1018
Published: December 8, 2020 / Updated: June 13, 2025
Vulnerability identifier: #VU110512
CSH Severity: High
CVSS v4: []
CVE-ID: CVE-2004-1018
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
Public exploit is available
Vulnerability details
The vulnerability allows attackers to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of user-supplied input. A remote attacker can bypass safe mode restrictions, cause a denial of service, or execute arbitrary code via (1) a negative offset value to the shmop_write function, (2) an "integer overflow/underflow" in the pack function, or (3) an "integer overflow/underflow" in the unpack function. NOTE: this issue was originally REJECTed by its CNA before publication, but that decision is in active dispute.
Affected software
PHP
How to mitigate CVE-2004-1018
Install update from vendor's website.
PHP - update to 4.3.10
Links to Public Exploits and PoC-codes
External References
- http://marc.info/?l=bugtraq&m=110314318531298&w=2
- http://www.hardened-php.net/advisories/012004.txt
- http://www.mandriva.com/security/advisories?name=MDKSA-2004:151
- http://www.mandriva.com/security/advisories?name=MDKSA-2005:072
- http://www.osvdb.org/12411
- http://www.php.net/release_4_3_10.php
- http://www.redhat.com/support/errata/RHSA-2005-032.html
- http://www.redhat.com/support/errata/RHSA-2005-816.html
- http://www.securityfocus.com/advisories/9028
- http://www.securityfocus.com/archive/1/384920
- http://www.securityfocus.com/bid/12045
- https://bugzilla.fedora.us/show_bug.cgi?id=2344
- https://exchange.xforce.ibmcloud.com/vulnerabilities/18515
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10949
- https://www.ubuntu.com/usn/usn-99-1/