Title: NT Authentication PAM Modules Buffer Overflow Vulnerability
Severity: HIGH
Description:
The pam_smb and pam_ntdom are plug-in authentication modules that allow unix users to authenticate against an NT domain controller. The pam_smb module contains a remotely exploitable buffer overflow vulnerability. pam_ntdom, which was derived from pam_smb, contains the same vulnerability. The problem results from long user names being copied into a 16 byte stack variable without bounds checking.
Affected Products:
- Conectiva Linux 5.1.0
- Debian Linux 2.2.0
- Samba pam_ntdom 0.23.0
- Samba pam_smb 1.1.5
References:
- Luke Kenneth Casson Leighton: NT Domain Authentication - PAM for NT Domains v0.2
- Samba: Samba Homepage
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