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TITLE:
Qt "QSslSocketBackendPrivate::transmit()" Denial of Service
Vulnerability

SECUNIA ADVISORY ID:
SA40389

VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/40389/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=40389

RELEASE DATE:
2010-07-01

DISCUSS ADVISORY:
http://secunia.com/advisories/40389/#comments

AVAILABLE ON SITE AND IN CUSTOMER AREA:
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 * Criticality Level
 * Impact
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 * Operating System / Software
 * CVE Reference(s)

http://secunia.com/advisories/40389/

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https://ca.secunia.com/?page=viewadvisory&vuln_id=40389

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DESCRIPTION:
Luigi Auriemma has reported a vulnerability in Qt, which can be
exploited by malicious people to cause a DoS (Denial of Service).

The vulnerability is caused due to an endless loop within the
"QSslSocketBackendPrivate::transmit()" function in
src/network/ssl/qsslsocket_openssl.cpp. This can be exploited to
exhaust CPU resources in e.g. server applications using the
QSslSocket class.

The vulnerability is reported in version 4.6.3. Other versions may
also be affected.

SOLUTION:
There is no known workaround at this time.

PROVIDED AND/OR DISCOVERED BY:
Luigi Auriemma

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

OTHER REFERENCES:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

DEEP LINKS:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

EXTENDED DESCRIPTION:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

EXTENDED SOLUTION:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

EXPLOIT:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

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About:
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