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TITLE:
DeleGate Multiple Vulnerabilities

SECUNIA ADVISORY ID:
SA27357

VERIFY ADVISORY:
http://secunia.com/advisories/27357/

CRITICAL:
Moderately critical

IMPACT:
DoS, System access

WHERE:
>From remote

SOFTWARE:
DeleGate 8.x
http://secunia.com/product/1237/
DeleGate 9.x
http://secunia.com/product/12776/

DESCRIPTION:
Some vulnerabilities have been reported in DeleGate, which can be
exploited by malicious people to cause a DoS (Denial of Service) or
potentially compromise a vulnerable system.

1) An unspecified error exists in DeleGate when running as an HTTP
cache proxy. This can be exploited to crash an affected server.

The vulnerability is reported in versions 9.6.3-pre6 through 9.7.4.

2) A boundary error exists within the SHTML parsing when DeleGate is
running as an origin HTTP server. This can be exploited to cause a
buffer overflow with a zero byte.

The vulnerability is reported in versions 9.4.0 through 9.7.3.

3) A synchronization error exists within the HTTPS/SSL origin server
implementation when sending large (over 1 MB) HTML files using GZIP
encoding. This can be exploited to block an affected server.

The vulnerability is reported in versions 9.6.x through 9.7.0 on
FreeBSD.

4) A synchronization error exists when processing GZIP HTTP
transfers. This can be exploited to block or potentially crash an
affected server by triggering a SIGPIPE in another thread (e.g. a
client disconnects prematurely).

The vulnerability is reported in versions 9.6.x through 9.7.0.

5) A boundary error exists within the implementation of various
supported protocols. This can be exploited to cause a buffer overflow
with a zero byte.

The vulnerability is reported in versions 8.10.3 through 9.3.2.

SOLUTION:
Update to version 9.7.5.

PROVIDED AND/OR DISCOVERED BY:
Reported by the vendor.

ORIGINAL ADVISORY:
1) http://www.delegate.org/mail-lists/delegate-en/3875
2, 5) http://www.delegate.org/mail-lists/delegate-en/3856
3, 4) http://www.delegate.org/mail-lists/delegate-en/3829

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