[security-alerts] FYI: [SA23141] ProFTPD mod_tls Buffer Overflow Vulnerability

["Kazennov, Vladimir" <Vladimir.Kazennov@xxxxxxxxxx>]

Прошу прощения, что информация вторичная, но более систематично изложена

> ----------------------------------------------------------------------
> 
> TITLE:
> ProFTPD mod_tls Buffer Overflow Vulnerability
> 
> SECUNIA ADVISORY ID:
> SA23141
> 
> VERIFY ADVISORY:
> http://secunia.com/advisories/23141/
> 
> CRITICAL:
> Moderately critical
> 
> IMPACT:
> System access, DoS
> 
> WHERE:
> From remote
> 
> SOFTWARE:
> ProFTPD 1.3.x
> http://secunia.com/product/5430/
> ProFTPD 1.2.x
> http://secunia.com/product/1250/
> 
> 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:
> Restrict access to trusted people only.
> 
> PROVIDED AND/OR DISCOVERED BY:
> Evgeny Legerov
> 
> ORIGINAL ADVISORY:
> http://lists.grok.org.uk/pipermail/full-disclosure/2006-Novemb
> er/050935.html
>