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TITLE:
GnuTLS "gnutls_handshake()" Denial of Service

SECUNIA ADVISORY ID:
SA31505

VERIFY ADVISORY:
http://secunia.com/advisories/31505/

CRITICAL:
Not critical

IMPACT:
DoS

WHERE:
>From remote

SOFTWARE:
GnuTLS 2.x
http://secunia.com/product/18736/

DESCRIPTION:
A vulnerability has been reported in GnuTLS, which can potentially be
exploited by malicious people to cause a DoS (Denial of Service).

The vulnerability is caused due to a use-after-free error when an
application calls "gnutls_handshake()" for an already valid session
and can potentially be exploited, e.g. during re-handshakes.

NOTE: Execution of arbitrary code has not been proven, but cannot be
completely ruled out.

The vulnerability is reported in version 2.3.5. through 2.4.0.

SOLUTION:
Update to version 2.4.1.

PROVIDED AND/OR DISCOVERED BY:
The vendor credits Tomas Mraz.

ORIGINAL ADVISORY:
GnuTLS:
http://article.gmane.org/gmane.comp.encryption.gpg.gnutls.devel/2947

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About:
This Advisory was delivered by Secunia as a free service to help
everybody keeping their systems up to date against the latest
vulnerabilities.

Subscribe:
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Definitions: (Criticality, Where etc.)
http://secunia.com/about_secunia_advisories/


Please Note:
Secunia recommends that you verify all advisories you receive by
clicking the link.
Secunia NEVER sends attached files with advisories.
Secunia does not advise people to install third party patches, only
use those supplied by the vendor.

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