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A new version (0.9.0.0 - Release Candidate 1) of the free Secunia PSI
has been released. The new version includes many new and advanced
features, which makes it even easier to stay patched.

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Read more about this new version:
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TITLE:
Feng Multiple Vulnerabilities

SECUNIA ADVISORY ID:
SA28229

VERIFY ADVISORY:
http://secunia.com/advisories/28229/

CRITICAL:
Highly critical

IMPACT:
DoS, System access

WHERE:
>From remote

SOFTWARE:
Feng 0.x
http://secunia.com/product/17053/

DESCRIPTION:
Luigi Auriemma has reported some vulnerabilities in Feng, which can
be exploited by malicious people to cause a DoS (Denial of Service)
or to potentially compromise a vulnerable system.

1) Two boundary errors exist within the "RTSP_valid_response_msg()"
function in rtsp/RTSP_state_machine.c. These can be exploited to
cause stack-based buffer overflows via specially crafted RTSP
response messages.

Successful exploitation may allow execution of arbitrary code.

2)  An integer overflow error exists within the "RTSP_remove_msg()"
function in rtsp/RTSP_lowlevel.c. This can be exploited to crash an
affected server via a specially crafted RTP packet.

3) Multiple NULL pointer dereference errors exist within the
"parse_transport_header()" function in rtsp/RTSP_setup.c. These can
be exploited to crash an affected server via specially crafted RTSP
transport headers.

4) A NULL pointer dereference error exists within the
"parse_play_time_range()" function in rtsp/RTSP_play.c. This can be
exploited to crash an affected server via an RTSP range header
containing a "time" field without a '=' character.

5) A NULL pointer dereference error exists within the
"log_user_agent()" function in rtsp/RTSP_utils.c. This can be
exploited to crash an affected server via a "User-Agent" field
without a terminating '\n' character.

The vulnerabilities are reported in version 0.1.15. Other versions
may also be affected.

SOLUTION:
The vendor will reportedly release a fixed version soon. Restrict
access to trusted users only.

PROVIDED AND/OR DISCOVERED BY:
Luigi Auriemma

ORIGINAL ADVISORY:
http://aluigi.altervista.org/adv/fengulo-adv.txt

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About:
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