Samba Two Buffer Overflow Vulnerabilities - Advisories

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Samba Two Buffer Overflow Vulnerabilities

Secunia Advisory:	SA12130
Release Date:	2004-07-23

Critical:	Moderately critical
Impact:	System access
Where:	From local network
Solution Status:	Vendor Patch

Software:	Samba 2.x Samba 3.x

CVE reference:	CVE-2004-0600 (Secunia mirror) CVE-2004-0686 (Secunia mirror)

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Description: Two vulnerabilities have been reported in Samba, potentially allowing malicious people to compromise a vulnerability system. 1) The vulnerability is caused due to a boundary error when decoding base64 data during HTTP basic authentication. This can potentially be exploited to cause a buffer overflow. 2) The vulnerability is caused due to a boundary error in the code used to handle "mangling method = hash". This can potentially be exploited to cause a buffer overflow. The default setting in Samba 3 and later is "mangling method = hash2". A default installation of Samba 3 is therefore not vulnerable to issue 2. Issue 1 affects Samba 3.0.2 to 3.0.4. Issue 2 affects Samba 3.0.0 to 3.0.4 and Samba 2.2.9 and prior. Solution: Both issues have been fixed in Samba version 3.0.5 and issue 2 has been fixed in Samba version 2.2.10. http://us2.samba.org/samba/ftp/ Provided and/or discovered by: Issue 1 discovered by Evgeny Demidov. Original Advisory: http://www.samba.org/samba/whatsnew/samba-3.0.5.html



Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise. Secunia collects, validates, and verifies all vulnerability reports issued by security research groups, vendors, and others.

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