5063 matches found
MS KB3062760: Update for Vulnerability in Juniper Networks Windows In-Box Junos Pulse Client (FREAK)
The remote Windows host is missing KB3062760, which resolves multiple OpenSSL vulnerabilities in the Juniper Networks Windows In-Box Junos Pulse client shipped with Windows 8.1 : - A flaw exists with ECDH handshakes when using an ECDSA certificate without a ServerKeyExchange message. This allows ...
Fedora 20 : dovecot-2.2.16-2.fc20 (2015-7159)
fixes CVE-2015-3420: SSL/TLS handshake failures leading to a crash of the login process - dovecot updated to 2.2.16 - auth: Don't crash if master user login is attempted without any configured master=yes passdbs - Parsing UTF-8 text for mails could have caused broken results sometimes if bufferin...
Apache Tomcat 7.0.x < 7.0.60 Multiple Vulnerabilities (FREAK)
According to its self-reported version number, the Apache Tomcat service listening on the remote host is 7.0.x prior to 7.0.60. It is, therefore, affected by the following vulnerabilities : - A NULL pointer dereference flaw exists when the SSLv3 option isn't enabled and an SSLv3 ClientHello is...
OpenSSL DHE Client Key Exchange Denial of Service (CVE-2015-1787)
A denial of service vulnerability exists in OpenSSL. The vulnerability is due to a null pointer dereference that occurs when an OpenSSL application receives and processes a Client Certificate and a crafted Client Key Exchange handshake message.A remote, unauthenticated attacker can exploit this...
Fedora 22 : dovecot-2.2.16-2.fc22 (2015-7156)
fixes CVE-2015-3420: SSL/TLS handshake failures leading to a crash of the login process - dovecot updated to 2.2.16 - auth: Don't crash if master user login is attempted without any configured master=yes passdbs - Parsing UTF-8 text for mails could have caused broken results sometimes if bufferin...
Dovecot imap-login TLS Handshake Denial of Service Vulnerability
Dovecot is an open source based on Linux/UNIX-like systems IMAP and POP3 mail server . A denial of service vulnerability exists in Dovecot version 2.2.16 and earlier. Due to an imap-login related error in the program's handling of forced SSLv3 connections. An attacker can exploit the vulnerabilit...
dovecot: denial of service
Dovecot = 2.2.14 does not correctly handle SSL/TLS handshake failure in the login process, asking OpenSSL to flush a connection that has already been aborted. This results in a crash with some versions of OpenSSL most likely = 1.0.2. A patch to OpenSSL has also been written to handle more...
OpenSSL ClientHello signature_algorithms Extension Denial of Service (CVE-2015-0291)
A denial of service vulnerability exists in OpenSSL. The vulnerability is due to a null pointer dereference when an OpenSSL server application, during renegotiation, receives and processes an invalid signaturealgorithms extension in a Client Hello handshake message. A remote, unauthenticated...
Moderate: Red Hat Security Advisory: openssl security update
Updated openssl packages that fix multiple security issues are now available for Red Hat Enterprise Linux 5 Red Hat Product Security has rated this update as having Moderate security impact. Common Vulnerability Scoring System CVSS base scores, which give detailed severity ratings, are available...
openssl: assertion failure in SSLv2 servers
A denial of service flaw was found in the way OpenSSL handled SSLv2 handshake messages. A remote attacker could use this flaw to cause a TLS/SSL server using OpenSSL to exit on a failed assertion if it had both the SSLv2 protocol and EXPORT-grade cipher suites enabled...
Cisco IOS Software TCP Memory Leak DoS (cisco-sa-20150325-tcpleak)
According to its self-reported version, the Cisco IOS software running on the remote device is affected by a memory leak issue in the TCP input module when establishing a three-way handshake. An unauthenticated, remote attacker can exploit this issue, via specially crafted TCP packets, to consume...
SSL/TLS Suffers ‘Bar Mitzvah Attack’vulnerability detection method and repair recommendations-vulnerability warning-the black bar safety net
0x01 introduction April Fool's Day is coming, and SSL again due to the Bar Mitzvah Attack vulnerability to get everyone to not mind. Held in Singapore's Black Hat Asia Security Conference, the Imperva security Director Itsik Mantin detailed description of how to use the attack principle,the...
openssl: assertion failure in SSLv2 servers
A denial of service flaw was found in the way OpenSSL handled SSLv2 handshake messages. A remote attacker could use this flaw to cause a TLS/SSL server using OpenSSL to exit on a failed assertion if it had both the SSLv2 protocol and EXPORT-grade cipher suites enabled...
Mandriva Linux Security Advisory : dovecot (MDVSA-2015:113)
Updated dovecot packages fix security vulnerability. Dovecot before 2.2.13 is vulnerable to a DoS attack against imap/pop3-login processes. If SSL/TLS handshake was started but wasn't finished, the login process attempted to eventually forcibly disconnect the client, but failed to do it correctly...
Cisco IOS Software and IOS XE Software TCP Packet Memory Leak Vulnerability
A vulnerability in the TCP input module of Cisco IOS and Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause a memory leak and eventual reload of the affected device. The vulnerability is due to improper handling of certain crafted packet sequences used in establishing ...
openssl: assertion failure in SSLv2 servers
A denial of service flaw was found in the way OpenSSL handled SSLv2 handshake messages. A remote attacker could use this flaw to cause a TLS/SSL server using OpenSSL to exit on a failed assertion if it had both the SSLv2 protocol and EXPORT-grade cipher suites enabled...
openssl: Divide-and-conquer session key recovery in SSLv2
It was discovered that the SSLv2 servers using OpenSSL accepted SSLv2 connection handshakes that indicated non-zero clear key length for non-export cipher suites. An attacker could use this flaw to decrypt recorded SSLv2 sessions with the server by using it as a decryption oracle...
Code injection
The ssl3clienthello function in s3clnt.c in OpenSSL 1.0.2 before 1.0.2a does not ensure that the PRNG is seeded before proceeding with a handshake, which makes it easier for remote attackers to defeat cryptographic protection mechanisms by sniffing the network and then conducting a brute-force...
CVE-2015-0285
The ssl3clienthello function in s3clnt.c in OpenSSL 1.0.2 before 1.0.2a does not ensure that the PRNG is seeded before proceeding with a handshake, which makes it easier for remote attackers to defeat cryptographic protection mechanisms by sniffing the network and then conducting a brute-force...
