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
Original Advisory: http://lists.grok.org.uk/pipermail/full-disclosure/2006-November/050935.html
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