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TITLE:
OpenSSL DTLS Memory Exhaustion Vulnerabilities

SECUNIA ADVISORY ID:
SA35128

VERIFY ADVISORY:
http://secunia.com/advisories/35128/

DESCRIPTION:
Two vulnerabilities have been reported in OpenSSL, which can be
exploited by malicious people to cause a DoS (Denial of Service).

1) The library does not limit the number of buffered DTLS records
with a future epoch. This can be exploited to exhaust all available
memory via specially crafted DTLS packets.

2) An error when processing DTLS messages can be exploited to exhaust
all available memory by sending a large number of out of sequence
handshake messages.

SOLUTION:
Fixed in the CVS repository.
http://cvs.openssl.org/chngview?cn=18187
http://cvs.openssl.org/chngview?cn=18188

PROVIDED AND/OR DISCOVERED BY:
Daniel Mentz

ORIGINAL ADVISORY:
http://rt.openssl.org/Ticket/Display.html?id=1930
http://rt.openssl.org/Ticket/Display.html?id=1931

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