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[ GLSA 200805-23 ] Samba: Heap-based buffer overflow
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GLSA
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PostPosted: Thu May 29, 2008 4:26 pm    Post subject: [ GLSA 200805-23 ] Samba: Heap-based buffer overflow Reply with quote

Gentoo Linux Security Advisory

Title: Samba: Heap-based buffer overflow (GLSA 200805-23)
Severity: normal
Exploitable: remote
Date: May 29, 2008
Bug(s): #222299
ID: 200805-23

Synopsis


A heap-based buffer overflow vulnerability was found in Samba, allowing for
the execution of arbitrary code.


Background


Samba is a suite of SMB and CIFS client/server programs.


Affected Packages

Package: net-fs/samba
Vulnerable: < 3.0.28a-r1
Unaffected: >= 3.0.28a-r1
Architectures: All supported architectures


Description


Alin Rad Pop (Secunia Research) reported a vulnerability in Samba
within the receive_smb_raw() function in the file lib/util_sock.c when
parsing SMB packets, possibly leading to a heap-based buffer overflow
via an overly large SMB packet.


Impact


A remote attacker could possibly exploit this vulnerability by enticing
a user to connect to a malicious server or by sending specially crafted
packets to an nmbd server configured as a local or domain master
browser, resulting in the execution of arbitrary code.


Workaround


There is no known workaround at this time.


Resolution


All Samba users should upgrade to the latest version:
Code:
# emerge --sync
    # emerge --ask --oneshot --verbose ">=net-fs/samba-3.0.28a-r1"


References

CVE-2008-1105


Last edited by GLSA on Sat Aug 22, 2009 4:17 am; edited 2 times in total
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