USN-2232-1: OpenSSL vulnerabilities

Jüri Aedla discovered that OpenSSL incorrectly handled invalid DTLS fragments. A remote attacker could use this issue to cause OpenSSL to crash, resulting in a denial of service, or possibly execute arbitrary code. This issue only affected Ubuntu 12.04 LTS, Ubuntu 13.10, and Ubuntu 14.04 LTS...

USN-2232-1 openssl vulnerabilities

Jüri Aedla discovered that OpenSSL incorrectly handled invalid DTLS fragments. A remote attacker could use this issue to cause OpenSSL to crash, resulting in a denial of service, or possibly execute arbitrary code. This issue only affected Ubuntu 12.04 LTS, Ubuntu 13.10, and Ubuntu 14.04 LTS...

openssl: Buffer overflow via DTLS invalid fragment

The dtls1reassemblefragment function in d1both.c in OpenSSL before 0.9.8za, 1.0.0 before 1.0.0m, and 1.0.1 before 1.0.1h does not properly validate fragment lengths in DTLS ClientHello messages, which allows remote attackers to execute arbitrary code or cause a denial of service buffer overflow a...

CVE-2014-0221

The dtls1getmessagefragment function in d1both.c in OpenSSL before 0.9.8za, 1.0.0 before 1.0.0m, and 1.0.1 before 1.0.1h allows remote attackers to cause a denial of service recursion and client crash via a DTLS hello message in an invalid DTLS handshake...

CVE-2014-0195

The dtls1reassemblefragment function in d1both.c in OpenSSL before 0.9.8za, 1.0.0 before 1.0.0m, and 1.0.1 before 1.0.1h does not properly validate fragment lengths in DTLS ClientHello messages, which allows remote attackers to execute arbitrary code or cause a denial of service buffer overflow a...

UBUNTU-CVE-2014-0221

The dtls1getmessagefragment function in d1both.c in OpenSSL before 0.9.8za, 1.0.0 before 1.0.0m, and 1.0.1 before 1.0.1h allows remote attackers to cause a denial of service recursion and client crash via a DTLS hello message in an invalid DTLS handshake...

Important: Red Hat Security Advisory: openssl security update

Updated openssl packages that fix multiple security issues are now available for Red Hat Enterprise Linux 6. The Red Hat Security Response Team has rated this update as having Important security impact. Common Vulnerability Scoring System CVSS base scores, which give detailed severity ratings, ar...

OpenSSL Vulnerable to Man-in-the-Middle Attack and Several Other Bugs

Remember OpenSSL Heartbleed vulnerability? Several weeks ago, the exposure of this security bug chilled the Internet, revealed that millions of websites were vulnerable to a flaw in the OpenSSL code which they used to encrypt their communications. Now once again the OpenSSL Foundation has issued...

Vulnerability in OpenSSL - DTLS recursion flaw

By sending an invalid DTLS handshake to an OpenSSL DTLS client the code can be made to recurse eventually crashing in a DoS attack. Only applications using OpenSSL as a DTLS client are affected. Found by Imre Rad Search-Lab Ltd...

Vulnerability in OpenSSL - DTLS invalid fragment vulnerability

A buffer overrun attack can be triggered by sending invalid DTLS fragments to an OpenSSL DTLS client or server. This is potentially exploitable to run arbitrary code on a vulnerable client or server. Only applications using OpenSSL as a DTLS client or server affected. Found by Jüri Aedla...

OpenSSL DTLS Fragment Out-Of-Bounds Write Remote Code Execution Vulnerability

This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of OpenSSL. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of DTLS packets. The issue lies in the assumption that all fragments specify the...

OpenSSL -- multiple vulnerabilities

The OpenSSL Project reports: An attacker using a carefully crafted handshake can force the use of weak keying material in OpenSSL SSL/TLS clients and servers. This can be exploited by a Man-in-the-middle MITM attack where the attacker can decrypt and modify traffic from the attacked client and...

OpenSSL DTLS Fragment Buffer Overflow DoS

This module performs a Denial of Service Attack against Datagram TLS in OpenSSL before 0.9.8za, 1.0.0 before 1.0.0m, and 1.0.1 before 1.0.1h. This occurs when a DTLS ClientHello message has multiple fragments and the fragment lengths of later fragments are larger than that of the first, a buffer...

OpenSSL DTLS Invalid Fragment Remote Code Execution (CVE-2014-0195)

A remote code execution vulnerability exists in OpenSSL. The vulnerability is due to an error when handling fragmented DTLS handshake messages. Successful exploitation can create a denial of service condition and may allow execution of arbitrary code within the context of the process using OpenSS...

Debian Security Advisory DSA 2950-1 (openssl - security update)

Multiple vulnerabilities have been discovered in OpenSSL: CVE-2014-0195 Jueri Aedla discovered that a buffer overflow in processing DTLS fragments could lead to the execution of arbitrary code or denial of service. CVE-2014-0221 Imre Rad discovered the processing of DTLS hello packets is...

[SECURITY] Fedora 20 Update: gnutls-3.1.25-1.fc20

GnuTLS is a secure communications library implementing the SSL, TLS and DTLS protocols and technologies around them. It provides a simple C language application programming interface API to access the secure communications protocols as well as APIs to parse and write X.509, PKCS 12, OpenPGP and...

Beware Of Fake 'HeartBleed Bug Remover Tool', Hijacks System with Malware

I am considering that you all must have read my last article on OpenSSL Heartbleed, a critical bug in the OpenSSL's implementation of the TLS/DTLS heartbeat extension that allows attackers to read portions of the affected server’s memory, potentially revealing users data, that the server did not...

McAfee Firewall Enterprise OpenSSL Information Disclosure (SB10071) (Heartbleed)

The remote host has a version of McAfee Firewall Enterprise installed that is affected by an out-of-bounds read error, known as Heartbleed, in the TLS/DTLS implementation due to improper handling of TLS heartbeat extension packets. A remote attacker, using crafted packets, can trigger a buffer...

Heartbleed OpenSSL - Information Leak Exploit (2) - DTLS Support

This exploit uses OpenSSL to create an encrypted connection and trigger the heartbleed leak. The leaked information is returned within encrypted SSL packets and is then decrypted and wrote to a file to annoy IDS/forensics. The exploit can set heartbeat payload length arbitrarily or use two preset...

Heartbleed OpenSSL Information Leak Proof Of Concept

/ CVE-2014-0160 heartbleed OpenSSL information leak exploit ========================================================= This exploit uses OpenSSL to create an encrypted connection and trigger the heartbleed leak. The leaked information is returned within encrypted SSL packets and is then decrypted...