Paul Griffith and Andrew Hogue discovered that Samba did not fully drop root privileges while translating SIDs. A remote authenticated user could issue SMB operations during a small window of opportunity and gain root privileges. (CVE-2007-2444)
Brian Schafer discovered that Samba did not handle NDR parsing correctly. A remote attacker could send specially crafted MS-RPC requests that could overwrite heap memory and execute arbitrary code. (CVE-2007-2446)
16 May 2007
A security issue affects these releases of Ubuntu and its derivatives:
Paul Griffith and Andrew Hogue discovered that Samba did not fully drop root privileges while translating SIDs. A remote authenticated user could issue SMB operations during a small window of opportunity and gain root privileges. (CVE-2007-2444)
Brian Schafer discovered that Samba did not handle NDR parsing correctly. A remote attacker could send specially crafted MS-RPC requests that could overwrite heap memory and execute arbitrary code. (CVE-2007-2446)
It was discovered that Samba did not correctly escape input parameters for external scripts defined in smb.conf. Remote authenticated users could send specially crafted MS-RPC requests and execute arbitrary shell commands. (CVE-2007-2447)
The problem can be corrected by updating your system to the following package versions:
To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.
In general, a standard system upgrade is sufficient to effect the necessary changes.
Vulmon