588 matches found
CVE-2016-0800
The SSLv2 protocol, as used in OpenSSL before 1.0.1s and 1.0.2 before 1.0.2g and other products, requires a server to send a ServerVerify message before establishing that a client possesses certain plaintext RSA data, which makes it easier for remote attackers to decrypt TLS ciphertext data by...
DROWN Flaw Opens 33 Percent Of HTTPS Connections To Attack
Researchers revealed a massive transport layer security TLS vulnerability today that leaves millions of Internet users vulnerable to an attack that could expose passwords, credit card numbers and financial data. OpenSSL and others are urging companies to patch their web servers or risk exposure t...
DROWN Attack — More than 11 Million OpenSSL HTTPS Websites at Risk
A new deadly security vulnerability has been discovered in OpenSSL that affects more than 11 Million modern websites and e-mail services protected by an ancient, long deprecated transport layer security protocol, Secure Sockets Layer SSLv2. Dubbed DROWN, the highly critical security hole in OpenS...
Vulnerability in OpenSSL - Divide-and-conquer session key recovery in SSLv2
This issue only affected versions of OpenSSL prior to March 19th 2015 at which time the code was refactored to address vulnerability CVE-2015-0293. s2srvr.c did not enforce that clear-key-length is 0 for non-export ciphers. If clear-key bytes are present for these ciphers, they displace...
openssl security update
1.0.1e-42.4 - fix CVE-2016-0702 - side channel attack on modular exponentiation - fix CVE-2016-0705 - double-free in DSA private key parsing - fix CVE-2016-0797 - heap corruption in BNhex2bn and BNdec2bn 1.0.1e-42.3 - fix CVE-2015-3197 - SSLv2 ciphersuite enforcement - disable SSLv2 in the generi...
SSLv2 DROWN Attack
Network traffic encrypted using an RSA-based SSL certificate may be decrypted if enough SSLv2 handshake data can be collected. Exploitation of this vulnerability—referred to as DROWN in public reporting—may allow a remote attacker to decrypt individual messages from a server supporting SSLv2...
Vulnerability in OpenSSL - Bleichenbacher oracle in SSLv2
This issue only affected versions of OpenSSL prior to March 19th 2015 at which time the code was refactored to address the vulnerability CVE-2015-0293. s2srvr.c overwrite the wrong bytes in the master-key when applying Bleichenbacher protection for export cipher suites. This provides a...
openssl security update
0.9.8e-39.0.1 - To disable SSLv2 client connections create the file /etc/sysconfig/openssl-ssl-client-kill-sslv2 John Haxby orabug 21673934 - Backport openssl 08-Jan-2015 security fixes John Haxby orabug 20409893 - fix CVE-2014-3570 - Bignum squaring may produce incorrect results - fix...
openssl security update
1.0.1e-51.4 - fix CVE-2016-0702 - side channel attack on modular exponentiation - fix CVE-2016-0705 - double-free in DSA private key parsing - fix CVE-2016-0797 - heap corruption in BNhex2bn and BNdec2bn 1.0.1e-51.3 - fix CVE-2015-3197 - SSLv2 ciphersuite enforcement - disable SSLv2 in the generi...
CVE-2016-0800
CVE-2016-0800 describes a cross-protocol attack (DROWN) where an OpenSSL server that supports SSLv2 and EXPORT-grade cipher suites can be used as a Bleichenbacher padding oracle to decrypt TLS traffic. The issue arises from the server verifying certain plaintext RSA data before completing TLS, en...
SSLv2 Cross-Protocol Session Decryption Vulnerability (DROWN)
Binary data 9127.prm...
Vulnerability in OpenSSL - Cross-protocol attack on TLS using SSLv2 (DROWN)
A cross-protocol attack was discovered that could lead to decryption of TLS sessions by using a server supporting SSLv2 and EXPORT cipher suites as a Bleichenbacher RSA padding oracle. Note that traffic between clients and non-vulnerable servers can be decrypted provided another server supporting...
Network traffic encrypted using RSA-based SSL certificates over SSLv2 may be decrypted by the DROWN attack
Overview Network traffic encrypted using an RSA-based SSL certificate may be decrypted if enough SSLv2 handshake data can be collected. This is known as the "DROWN" attack in the media. Description According to the researcher, "DROWN" is a new form of cross-protocol Bleichenbacher padding oracle...
CVE-2016-0800
The SSLv2 protocol, as used in OpenSSL before 1.0.1s and 1.0.2 before 1.0.2g and other products, requires a server to send a ServerVerify message before establishing that a client possesses certain plaintext RSA data, which makes it easier for remote attackers to decrypt TLS ciphertext data by...
CVE-2016-0800
The SSLv2 protocol, as used in OpenSSL before 1.0.1s and 1.0.2 before 1.0.2g and other products, requires a server to send a ServerVerify message before establishing that a client possesses certain plaintext RSA data, which makes it easier for remote attackers to decrypt TLS ciphertext data by...
DSA-3500-1 openssl - security update
Bulletin has no description...
SSL DROWN Attack Vulnerability (Decrypting RSA with Obsolete and Weakened eNcryption)
The remote host supports SSLv2 and therefore may be affected by a vulnerability that allows a cross-protocol Bleichenbacher padding oracle attack known as DROWN Decrypting RSA with Obsolete and Weakened eNcryption. This vulnerability exists due to a flaw in the Secure Sockets Layer Version 2 SSLv...
Debian DLA-421-1 : openssl security update
CVE-2015-3197: A malicious client can negotiate SSLv2 ciphers that have been disabled on the server and complete SSLv2 handshakes even if all SSLv2 ciphers have been disabled, provided that the SSLv2 protocol was not also disabled via SSLOPNOSSLv2. Additionally, when using a DHE cipher suite a ne...
[SECURITY] [DLA 421-1] openssl security update
Package : openssl Version : 0.9.8o-4squeeze23 CVE ID : CVE-2015-3197 CVE-2015-3197: A malicious client can negotiate SSLv2 ciphers that have been disabled on the server and complete SSLv2 handshakes even if all SSLv2 ciphers have been disabled, provided that the SSLv2 protocol was not also disabl...