Description
The xmlrpc extension in PHP 5.3.1 does not properly handle a missing methodName element in the first argument to the xmlrpc_decode_request function, which allows context-dependent attackers to cause a denial of service (NULL pointer dereference and application crash) and possibly have unspecified other impact via a crafted argument.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 5.0 | php5 | 5.2.6.dfsg.1-1+lenny8 | DSA-2018-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 5 | php +18 | 5.1.6-27.el5_5.3 | RHSA-2010:0919 |
| RHEL 4 | php +13 | 4.3.9-3.31 | RHSA-2010:0919 |
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.
Exploit-DB 1
- PHP 5.3.2 'xmlrpc' Extension - Multiple Remote Denial of Service Vulnerabilities EDB-33755 · dos · Mar 12, 2010 · verified
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
Advisories 2
- RHSA-2010:0919 Red Hat Security Advisory: php security update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- DSA-2018-1 php5 - null pointer dereference Debian Security (DSA / DLA) · Mar 9, 2026
References
- http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=573573
- http://support.apple.com/kb/HT4435
- [oss-security] 20100312 CVE-2010-0397: NULL pointer dereference in PHP's xmlrpc extension mailing-list
- APPLE-SA-2010-11-10-1 vendor-advisory
- SUSE-SR:2010:013 vendor-advisory
- 38708 vdb-entry
- RHSA-2010:0919 vendor-advisory
- APPLE-SA-2010-08-24-1 vendor-advisory
- http://support.apple.com/kb/HT4312
- SUSE-SR:2010:012 vendor-advisory
- 42410 third-party-advisory
- SUSE-SR:2010:017 vendor-advisory
- ADV-2010-0724 vdb-entry
- MDVSA-2010:068 vendor-advisory
- ADV-2010-3081 vdb-entry