[security-alerts] FW: [SA26135] tcpdump print-bgp.c Buffer Overflow Vulnerability

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

>
> TITLE:
> tcpdump print-bgp.c Buffer Overflow Vulnerability
>
> SECUNIA ADVISORY ID:
> SA26135
>
> VERIFY ADVISORY:
> http://secunia.com/advisories/26135/
>
> CRITICAL:
> Highly critical
>
> IMPACT:
> System access
>
> WHERE:
> From remote
>
> SOFTWARE:
> tcpdump 3.x
> http://secunia.com/product/749/
>
> DESCRIPTION:
> mu-b has reported a vulnerability in tcpdump, which potentially can
> be exploited by malicious people to compromise a user's system.
>
> The vulnerability is caused due to the incorrect use of the return
> value of "snprintf()" in print-bgp.c. This can be exploited to cause
> a buffer overflow by sending specially crafted BGP packets.
>
> Successful exploitation may allow the execution of arbitrary code.
>
> The vulnerability is reported in version 3.9.6. Other versions may
> also be affected.
>
> SOLUTION:
> Fixed in the SVN repository.
> http://cvs.tcpdump.org/cgi-bin/cvsweb/tcpdump/print-bgp.c?r1=1
> .91.2.11&r2=1.91.2.12
>
> PROVIDED AND/OR DISCOVERED BY:
> mu-b, digit-labs.org
>
> ORIGINAL ADVISORY:
> http://www.digit-labs.org/files/exploits/private/tcpdump-bgp.c
>