Description
Integer signedness error in emalloc() function for PHP before 4.3.2 allow remote attackers to cause a denial of service (memory consumption) and possibly execute arbitrary code via negative arguments to functions such as (1) socket_recv, (2) socket_recvfrom, and possibly other functions.
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.
Exploit-DB 3
- PHP 4.x - 'socket_recv()' Signed Integer Memory Corruption EDB-22425 · dos · Mar 26, 2003 · verified
- PHP 4.x - 'socket_recvfrom()' Signed Integer Memory Corruption EDB-22426 · dos · Mar 26, 2003 · verified
- PHP 4.3 - 'socket_iovec_alloc()' Integer Overflow EDB-22419 · dos · Mar 25, 2003 · verified
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
References
- 20030402 Inaccurate Reports Concerning PHP Vulnerabilities mailing-list
- CLSA-2003:691 vendor-advisory
- 20030327 RE: FUD-ALARM: @(#)Mordred Labs advisory - Integer overflow in PHP memory allocator mailing-list
- 7198 vdb-entry
- 20030326 @(#)Mordred Labs advisory - Integer overflow in PHP memory allocator mailing-list
- 7197 vdb-entry