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ProFTPD mod_tls Buffer Overflow Vulnerability
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Secunia Advisory:
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SA23141
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Release Date:
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2006-11-28
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Last Update:
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2006-12-13
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Popularity:
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11,082 views
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Critical:
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Moderately critical
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Impact:
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DoS
System access
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Where:
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From remote
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Solution Status:
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Vendor Patch
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| Software: | ProFTPD 1.2.x
ProFTPD 1.3.x
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Subscribe:
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| CVE reference: | CVE-2006-6170
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Description:
Evgeny Legerov has reported a vulnerability in the mod_tls module for ProFTPD, which potentially can be exploited by malicious people to compromise a vulnerable system.
The vulnerability is caused due to a boundary error within the "tls_x509_name_oneline()" function in contrib/mod_tls.c. This can be exploited to cause a buffer overflow by sending specially crafted data to a server.
Successful exploitation may allow execution of arbitrary code, but requires that ProFTPD uses the mod_tls module.
The vulnerability is reported in version 1.3.0a. Other versions may also be affected.
Solution:
Fixed in version 1.3.1rc1.
Provided and/or discovered by:
Evgeny Legerov
Changelog:
2006-12-01: Added CVE reference.
2006-12-13: Updated "solution" section. Added link to ProFTPD bug #2860.
Original Advisory:
http://lists.grok.org.uk/pipermail/full-disclosure/2006-November/050935.html
Other References:
ProFTPD bug #2860:
http://bugs.proftpd.org/show_bug.cgi?id=2860
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Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.
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