Ce mail provient de l'extérieur, restons vigilants

=====================================================================

                            CERT-Renater

                Note d'Information No. 2025/VULN269

_____________________________________________________________________

DATE                : 30/04/2025

HARDWARE PLATFORM(S): /

OPERATING SYSTEM(S): Systems running fastcgi library versions prior
                                       to 2.4.5.

=====================================================================
https://www.openwall.com/lists/oss-security/2025/04/23/4
_____________________________________________________________________


Version 2.4.5 of the fastcgi library was released last week:
https://github.com/FastCGI-Archives/fcgi2/releases/tag/2.4.5

It fixed CVE-2025-23016, which is described as "an integer overflow (and
resultant heap-based buffer overflow) via crafted nameLen or valueLen
values in data to the IPC socket. This occurs in ReadParams in fcgiapp.c."

The upstream bug report can be found at:
https://github.com/FastCGI-Archives/fcgi2/issues/67

and a detailed writeup from the discoverers at:
https://www.synacktiv.com/en/publications/cve-2025-23016-exploiting-the-fastcgi-library

which suggests both upgrading to the fixed version and "limiting potential
remote access to the FastCGI socket by declaring it as a UNIX socket."

-- 
         -Alan Coopersmith-                 alan.coopersmith@...cle.com
          Oracle Solaris Engineering - https://blogs.oracle.com/solaris
=========================================================
+ CERT-RENATER        |    tel : 01-53-94-20-44         +
+ 23/25 Rue Daviel    |    fax : 01-53-94-20-41         +
+ 75013 Paris         |   email:cert@support.renater.fr +
=========================================================